by | Sep 27, 2025
3
Introduction
3M
Glass Bubbles are engineered hollow glass microspheres
that are alternatives to conventional fillers and additives such as
silicas, calcium carbonate, talc, clay, etc., for many demanding
applications. These low-density particles are used in a wide range
of industries to reduce part weight, lower costs and enhance
product properties.
The unique spherical shape of 3M glass bubbles offers a number
of important benefits, including: higher filler loading, lower
viscosity/improved flow and reduced shrinkage and warpage. It
also helps the 3M glass bubbles blend readily into compounds
and makes them adaptable to a variety of production processes
including spraying, casting and molding.
The chemically stable soda-lime-borosilicate glass composition
of 3M glass bubbles provides excellent water resistance to create
more stable emulsions. They are also non-combustible and non-
porous, so they do not absorb resin. And, their low alkalinity gives
3M glass bubbles compatibility with most resins, stable viscosity
and long shelf life.
3M Glass Bubbles K Series, S Series and iM Series are specially
formulated for a high strength-to-weight ratio. This allows greater
survivability under many demanding processing conditions, such
as injection molding. They also produce stable voids, which results
in low thermal conductivity and a low dielectric constant. 3M glass
bubbles are available in a variety of sizes and grades to help you
meet your product and processing requirements.
3M
Glass Bubbles
K Series, S Series and iM Series
Product Information
Product
Test Pressure
(psi)
Target Fractional
Survival
Minimum
Fractional
Survival
K Series
K1 250 90% 80%
K15 300 90% 80%
K20 500 90% 80%
K25 750 90% 80%
K37 3,000 90% 80%
K46 6,000 90% 80%
S Series
S15 300 90% 80%
S22 400 90% 80%
S32 2,000 90% 80%
S35 3,000 90% 80%
S38 4,000 90% 80%
S38HS 5,500 90% 80%
S60 10,000 90% 80%
S60HS 18,000 90% 90%
iM Series
iM16K 16,000 90% 90%
iM30K 28,000 90% 90%
Isostatic Crush Strength
True Density (g/cc)
Product Typical Minimum Maximum
K Series
K1 0.125 0.10 0.14
K15 0.15 0.13 0.17
K20 0.20 0.18 0.22
K25 0.25 0.23 0.27
K37 0.37 0.34 0.40
K46 0.46 0.43 0.49
S Series
S15 0.15 0.13 0.17
S22 0.22 0.19 0.25
S32 0.32 0.29 0.35
S35 0.35 0.32 0.38
S38 0.38 0.35 0.41
S38HS 0.38 0.35 0.41
S60 0.60 0.57 0.63
S60HS 0.60 0.57 0.63
iM Series
iM16K 0.46 0.43 0.49
iM30K 0.60 0.57 0.63
True Density
Typical Properties
Not for specification purposes
Typical Properties
Chemical Resistance
In general, the chemical properties of 3M
Glass Bubbles
resemble those of a soda-lime-borosilicate glass.
Thermal Conductivity
Product
Calculated Thermal Conductivity
(W m-1 K-1) at 70 F (21 C)
K Series
K1 0.047
K15 0.055
K20 0.070
K25 0.085
K37 0.124
K46 0.153
S Series
S15 0.055
S22 0.076
S32 0.108
S35 0.117
S38 0.127
S38HS 0.127
S60 0.200
S60HS 0.200
iM Series
iM16K 0.153
iM30K 0.200
Conductivity increases with temperature and product density. The
thermal conductivity of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Thermal Stability
Appreciable changes in bubble properties may occur above 1112 F
(600 C) depending on temperature and duration of exposure.
Flotation
Floaters (% by bulk volume)
Product Typical Minimum
K Series
K1 96% 90%
K15 96% 90%
K20 96% 90%
K25 96% 90%
K37 94% 90%
K46 92% 90%
S Series
S15 96% 90%
S22 96% 90%
S32 94% 90%
S35 96% 90%
S38 94% 90%
S38HS 96% 90%
S60 92% 90%
S60HS 92% 90%
iM Series
iM16K 96% 90%
iM30K 92% 90%
Packing Factor (Ratio of bulk density to true particle density)
Averages about 60%.
Oil Absorption
0.2 0.6 g oil/cc of 3M glass bubbles, per ASTM D281-84.
Volatile Content
Maximum of 0.5 percent by weight.
Alkalinity
Maximum of 0.5 milliequivalents per gram
pH
Because 3M glass bubbles are a dry powder, pH is not defined. The pH effect will be determined by the alkalinity as indicated above. When 3M glass bubbles are mixed with deionized water at 5% volume loading, the resulting pH of the slurry is typically 9.1 to 9.9, as measured by a pH meter.
Dielectric Constant
K Series: 1.2 to 1.7 @ 100 MHz, based on theoretical calculations.
S Series: 1.2 to 2.0 @ 100 MHz, based on theoretical calculations.
iM Series: 1.2 to 1.7 @ 100 MHz, based on theoretical
calculations
The dielectric constant of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Particle Size
Particle Size (microns, by volume) 3M QCM 193.0
Product Distribution
Effective
Top Size10th% 50th% 90th%
K Series
K1 30 65 115 120
K15 30 60 105 115
K20 30 60 90 105
K25 25 55 90 105
K37 20 45 80 85
K46 15 40 70 80
S Series
S15 25 55 90 95
S22 20 35 65 75
S32 20 40 70 80
S35 20 40 65 80
S38 15 40 75 85
S38HS 19 44 70 85
S60 15 30 55 65
S60HS 12 29 48 60
iM Series
iM16K 12 20 30 40
iM30K 8.6 15.3 23.6 26.7
3M
Glass Bubbles K, S and iM Series
Minimum storage conditions should be unopened cartons in an
unheated warehouse.
Under high humidity conditions with an ambient temperature
cycling over a wide range, moisture can be drawn into the bag
as the temperature drops and the air contracts. The result may
be moisture condensation within the bag. Extended exposure to
these conditions may result in caking of the 3M glass bubbles
to various degrees. To minimize the potential for caking and
prolong the storage life, the following suggestions are made:
1. Carefully re-tie open bags after use.
2. If the polyethylene bag is punctured during shipping or
handling, use this bag as soon as possible, patch the hole,
or insert the contents into an undamaged bag.
3. During humid summer months, store in the driest, coolest
space available.
4. If good storage conditions are unavailable, carry a
minimum inventory, and process on a first in/first
out basis.
Dusting problems that may occur while handling and processing
can be minimized by the following procedures:
1. For eye protection wear chemical safety goggles. For
respiratory system protection wear an appropriate NIOSH/
MSHA approved respirator. (For additional information
about personal protective equipment, refer to Material
Safety Data Sheet.)
2. Use appropriate ventilation in the work area.
3. Pneumatic conveyor systems have been used successfully
to transport 3M glass bubbles without dusting from
shipping containers to batch mixing equipment. Static
eliminators should be used to help prevent static charges.
Diaphragm pumps have been used to successfully convey
3M glass bubbles. Vendors should be consulted for
specific recommendations.
3M glass bubble breakage may occur if the product is improperly
processed. To minimize breakage, avoid high shear processes such
as high speed Cowles Dissolvers, point contact shear such as gear
pumps or 3-roll mills, and processing pressures above the strength
test pressure for each product.
Health and Safety Information
For product Health and Safety Information, refer to product label
and Material Safety Data Sheet (MSDS) before using product.
Particle Size (continued)
Hard Particles (3M QCM 93.4.3)
No hard particles (e.g. glass slag, flow agent, etc.) greater than
U.S. number 40 (420 microns) standard sieve will exist.
Oversize Particles (3M QCM 93.4.4)
For K1, K15, K20 and K25 glass bubbles:
Using a 10 gram sample on a U.S. number 80 standard sieve
(177 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
For K37 and K46 glass bubbles:
Using a 10 gram sample on U.S. number 100 standard sieve
(149 microns), a maximum of one (1) percent by weight glass
bubbles will be retained on the sieve.
For S15, S32, S35, S38, S38HS, S60, S60HS, iM16K and iM30K
glass bubbles:
Using a 10 gram sample on a U.S. number 140 standard sieve
(105 microns), a maximum of three (3) percent by weight glass
bubbles will be retained on the sieve.
For S22 glass bubbles:
Using a 10 gram sample on a U.S. number 200 standard sieve
(74 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
Appearance (3M QCM 22.85)
White to the unaided eye.
Flow (3M QCM 22.83)
3M
Glass Bubbles remain free flowing for at least one year from
the date of shipment if stored in the original, unopened container
in the minimum storage conditions of an unheated warehouse.
Labeling
3M glass bubbles will be packaged in suitable containers to help
prevent damage during normal handling and shipping. Each
container will be labeled with:
1. Name of manufacturer
2. Type of 3M glass bubbles
3. Lot number
4. Quantity in pounds
Storage and Handling
To help ensure ease of storage and handling while maintaining
free flowing properties, 3M
Glass Bubbles have been made
from a chemically stable glass and are packaged in a heavy-duty
polyethylene bag within a cardboard container.
Packaging Information
Small Box (10 Cubic ft.)
A single corrugated box with a plastic liner. All boxes are
banded together and to the wooden pallet. 4 boxes per pallet.
Each box inside diameter is 22 in. 19 in. 39 in.
Pallet size is 42 in. 48 in.
Large Box (50 Cubic ft.)*
A single corrugated box with a plastic liner. Top enclosed
with interlocking double cover banded. Bottom is normal box
closure, entire box banded to wooden pallet.
Each box inside diameter is 48 in. 42 in. 44 in. Overall
load size is 48
3
/4 in. 42
3
/4 in. 50 in. including pallet.
Pallet size is 42 in. 48 in.
*S60 and S60HS large boxes are 38 cubic ft.
Product
Small
Box
Large
Box*
Truckload Large Box*
44 Pallets
K Series
K1 40 lb. 210 lb. 9,240 lb.
K15 50 lb. 265 lb. 11,660 lb.
K20 60 lb. 350 lb. 15,400 lb.
K25 80 lb. 430 lb. 18,920 lb.
K37 100 lb.660 lb. 29,040 lb.
K46 125 lb.815 lb. 35,860 lb.
S Series
S15 50 lb. 265 lb. 11,660 lb.
S22 60 lb. 385 lb. 16,940 lb.
S32 100 lb.525 lb. 23,100 lb.
S35 100 lb.630 lb. 27,720 lb.
S38 100 lb.680 lb. 29,920 lb.
S38HS 100 lb.680 lb. 29,920 lb.
S60 125 lb.850 lb. 37,400 lb.
S60HS 125 lb.850 lb. 37,400 lb.
iM Series
iM16K 99 lb. 800 lb.
iM30K 125 lb.850 lb. 37,400 lb.
Box Weights
*Box weights may vary due to manufacturing tolerances on each product.
Resources
3M
Glass Bubbles are supported by global sales, technical and
customer service resources, with fully-staffed technical service
laboratories in the U.S., Europe, Japan, Latin America and
Southeast Asia. Users benefit from 3M s broad technology base
and continuing attention to product development, performance,
safety and environmental issues.
For additional technical information on 3M glass bubbles in the
United States, call 3M Advanced Materials Division, 800-367-8905 .
For other 3M global offices, and information on additional 3M
products, visit our website at: www.3M.com/engineeredadditives .
3M
Glass Bubbles K, S and iM Series
Please recycle. Printed in USA.
3M 2013. All rights reserved.
Issued: 3/13 9049HB
98-0212-3859-1
3M is a trademark of 3M. Used under license
by 3M subsidiaries and affiliates.
3M Center
St. Paul, MN 55144-1000
1-800-367-8905
www.3M.com/engineeredadditives
3
Warranty, Limited Remedy, and Disclaimer: Many factors beyond 3M s control and uniquely within user s knowledge and control can affect the use and performance of a 3M product
in a particular application. User is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user s method of application.
Unless a different warranty is specifically stated in the applicable product literature or packaging insert, 3M warrants that each 3M product meets the applicable 3M product specification at
the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M
product does not conform to this warranty, then the sole and exclusive remedy is, at 3M s option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damages arising from the 3M product, whether direct, indirect, special, incidental or
consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.
Technical Information: Technical information, recommendations, and other statements contained in this document or provided by 3M personnel are based on tests or experience that 3M
believes are reliable, but the accuracy or completeness of such information is not guaranteed. Such information is intended for persons with knowledge and technical skills sufficient to
assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information.
by | Sep 27, 2025
3
Introduction
3M
Glass Bubbles are engineered hollow glass microspheres
that are alternatives to conventional fillers and additives such as
silicas, calcium carbonate, talc, clay, etc., for many demanding
applications. These low-density particles are used in a wide range
of industries to reduce part weight, lower costs and enhance
product properties.
The unique spherical shape of 3M glass bubbles offers a number
of important benefits, including: higher filler loading, lower
viscosity/improved flow and reduced shrinkage and warpage. It
also helps the 3M glass bubbles blend readily into compounds
and makes them adaptable to a variety of production processes
including spraying, casting and molding.
The chemically stable soda-lime-borosilicate glass composition
of 3M glass bubbles provides excellent water resistance to create
more stable emulsions. They are also non-combustible and non-
porous, so they do not absorb resin. And, their low alkalinity gives
3M glass bubbles compatibility with most resins, stable viscosity
and long shelf life.
3M Glass Bubbles K Series, S Series and iM Series are specially
formulated for a high strength-to-weight ratio. This allows greater
survivability under many demanding processing conditions, such
as injection molding. They also produce stable voids, which results
in low thermal conductivity and a low dielectric constant. 3M glass
bubbles are available in a variety of sizes and grades to help you
meet your product and processing requirements.
3M
Glass Bubbles
K Series, S Series and iM Series
Product Information
Product
Test Pressure
(psi)
Target Fractional
Survival
Minimum
Fractional
Survival
K Series
K1 250 90% 80%
K15 300 90% 80%
K20 500 90% 80%
K25 750 90% 80%
K37 3,000 90% 80%
K46 6,000 90% 80%
S Series
S15 300 90% 80%
S22 400 90% 80%
S32 2,000 90% 80%
S35 3,000 90% 80%
S38 4,000 90% 80%
S38HS 5,500 90% 80%
S60 10,000 90% 80%
S60HS 18,000 90% 90%
iM Series
iM16K 16,000 90% 90%
iM30K 28,000 90% 90%
Isostatic Crush Strength
True Density (g/cc)
Product Typical Minimum Maximum
K Series
K1 0.125 0.10 0.14
K15 0.15 0.13 0.17
K20 0.20 0.18 0.22
K25 0.25 0.23 0.27
K37 0.37 0.34 0.40
K46 0.46 0.43 0.49
S Series
S15 0.15 0.13 0.17
S22 0.22 0.19 0.25
S32 0.32 0.29 0.35
S35 0.35 0.32 0.38
S38 0.38 0.35 0.41
S38HS 0.38 0.35 0.41
S60 0.60 0.57 0.63
S60HS 0.60 0.57 0.63
iM Series
iM16K 0.46 0.43 0.49
iM30K 0.60 0.57 0.63
True Density
Typical Properties
Not for specification purposes
Typical Properties
Chemical Resistance
In general, the chemical properties of 3M
Glass Bubbles
resemble those of a soda-lime-borosilicate glass.
Thermal Conductivity
Product
Calculated Thermal Conductivity
(W m-1 K-1) at 70 F (21 C)
K Series
K1 0.047
K15 0.055
K20 0.070
K25 0.085
K37 0.124
K46 0.153
S Series
S15 0.055
S22 0.076
S32 0.108
S35 0.117
S38 0.127
S38HS 0.127
S60 0.200
S60HS 0.200
iM Series
iM16K 0.153
iM30K 0.200
Conductivity increases with temperature and product density. The
thermal conductivity of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Thermal Stability
Appreciable changes in bubble properties may occur above 1112 F
(600 C) depending on temperature and duration of exposure.
Flotation
Floaters (% by bulk volume)
Product Typical Minimum
K Series
K1 96% 90%
K15 96% 90%
K20 96% 90%
K25 96% 90%
K37 94% 90%
K46 92% 90%
S Series
S15 96% 90%
S22 96% 90%
S32 94% 90%
S35 96% 90%
S38 94% 90%
S38HS 96% 90%
S60 92% 90%
S60HS 92% 90%
iM Series
iM16K 96% 90%
iM30K 92% 90%
Packing Factor (Ratio of bulk density to true particle density)
Averages about 60%.
Oil Absorption
0.2 0.6 g oil/cc of 3M glass bubbles, per ASTM D281-84.
Volatile Content
Maximum of 0.5 percent by weight.
Alkalinity
Maximum of 0.5 milliequivalents per gram
pH
Because 3M glass bubbles are a dry powder, pH is not defined. The pH effect will be determined by the alkalinity as indicated above. When 3M glass bubbles are mixed with deionized water at 5% volume loading, the resulting pH of the slurry is typically 9.1 to 9.9, as measured by a pH meter.
Dielectric Constant
K Series: 1.2 to 1.7 @ 100 MHz, based on theoretical calculations.
S Series: 1.2 to 2.0 @ 100 MHz, based on theoretical calculations.
iM Series: 1.2 to 1.7 @ 100 MHz, based on theoretical
calculations
The dielectric constant of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Particle Size
Particle Size (microns, by volume) 3M QCM 193.0
Product Distribution
Effective
Top Size10th% 50th% 90th%
K Series
K1 30 65 115 120
K15 30 60 105 115
K20 30 60 90 105
K25 25 55 90 105
K37 20 45 80 85
K46 15 40 70 80
S Series
S15 25 55 90 95
S22 20 35 65 75
S32 20 40 70 80
S35 20 40 65 80
S38 15 40 75 85
S38HS 19 44 70 85
S60 15 30 55 65
S60HS 12 29 48 60
iM Series
iM16K 12 20 30 40
iM30K 8.6 15.3 23.6 26.7
3M
Glass Bubbles K, S and iM Series
Minimum storage conditions should be unopened cartons in an
unheated warehouse.
Under high humidity conditions with an ambient temperature
cycling over a wide range, moisture can be drawn into the bag
as the temperature drops and the air contracts. The result may
be moisture condensation within the bag. Extended exposure to
these conditions may result in caking of the 3M glass bubbles
to various degrees. To minimize the potential for caking and
prolong the storage life, the following suggestions are made:
1. Carefully re-tie open bags after use.
2. If the polyethylene bag is punctured during shipping or
handling, use this bag as soon as possible, patch the hole,
or insert the contents into an undamaged bag.
3. During humid summer months, store in the driest, coolest
space available.
4. If good storage conditions are unavailable, carry a
minimum inventory, and process on a first in/first
out basis.
Dusting problems that may occur while handling and processing
can be minimized by the following procedures:
1. For eye protection wear chemical safety goggles. For
respiratory system protection wear an appropriate NIOSH/
MSHA approved respirator. (For additional information
about personal protective equipment, refer to Material
Safety Data Sheet.)
2. Use appropriate ventilation in the work area.
3. Pneumatic conveyor systems have been used successfully
to transport 3M glass bubbles without dusting from
shipping containers to batch mixing equipment. Static
eliminators should be used to help prevent static charges.
Diaphragm pumps have been used to successfully convey
3M glass bubbles. Vendors should be consulted for
specific recommendations.
3M glass bubble breakage may occur if the product is improperly
processed. To minimize breakage, avoid high shear processes such
as high speed Cowles Dissolvers, point contact shear such as gear
pumps or 3-roll mills, and processing pressures above the strength
test pressure for each product.
Health and Safety Information
For product Health and Safety Information, refer to product label
and Material Safety Data Sheet (MSDS) before using product.
Particle Size (continued)
Hard Particles (3M QCM 93.4.3)
No hard particles (e.g. glass slag, flow agent, etc.) greater than
U.S. number 40 (420 microns) standard sieve will exist.
Oversize Particles (3M QCM 93.4.4)
For K1, K15, K20 and K25 glass bubbles:
Using a 10 gram sample on a U.S. number 80 standard sieve
(177 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
For K37 and K46 glass bubbles:
Using a 10 gram sample on U.S. number 100 standard sieve
(149 microns), a maximum of one (1) percent by weight glass
bubbles will be retained on the sieve.
For S15, S32, S35, S38, S38HS, S60, S60HS, iM16K and iM30K
glass bubbles:
Using a 10 gram sample on a U.S. number 140 standard sieve
(105 microns), a maximum of three (3) percent by weight glass
bubbles will be retained on the sieve.
For S22 glass bubbles:
Using a 10 gram sample on a U.S. number 200 standard sieve
(74 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
Appearance (3M QCM 22.85)
White to the unaided eye.
Flow (3M QCM 22.83)
3M
Glass Bubbles remain free flowing for at least one year from
the date of shipment if stored in the original, unopened container
in the minimum storage conditions of an unheated warehouse.
Labeling
3M glass bubbles will be packaged in suitable containers to help
prevent damage during normal handling and shipping. Each
container will be labeled with:
1. Name of manufacturer
2. Type of 3M glass bubbles
3. Lot number
4. Quantity in pounds
Storage and Handling
To help ensure ease of storage and handling while maintaining
free flowing properties, 3M
Glass Bubbles have been made
from a chemically stable glass and are packaged in a heavy-duty
polyethylene bag within a cardboard container.
Packaging Information
Small Box (10 Cubic ft.)
A single corrugated box with a plastic liner. All boxes are
banded together and to the wooden pallet. 4 boxes per pallet.
Each box inside diameter is 22 in. 19 in. 39 in.
Pallet size is 42 in. 48 in.
Large Box (50 Cubic ft.)*
A single corrugated box with a plastic liner. Top enclosed
with interlocking double cover banded. Bottom is normal box
closure, entire box banded to wooden pallet.
Each box inside diameter is 48 in. 42 in. 44 in. Overall
load size is 48
3
/4 in. 42
3
/4 in. 50 in. including pallet.
Pallet size is 42 in. 48 in.
*S60 and S60HS large boxes are 38 cubic ft.
Product
Small
Box
Large
Box*
Truckload Large Box*
44 Pallets
K Series
K1 40 lb. 210 lb. 9,240 lb.
K15 50 lb. 265 lb. 11,660 lb.
K20 60 lb. 350 lb. 15,400 lb.
K25 80 lb. 430 lb. 18,920 lb.
K37 100 lb.660 lb. 29,040 lb.
K46 125 lb.815 lb. 35,860 lb.
S Series
S15 50 lb. 265 lb. 11,660 lb.
S22 60 lb. 385 lb. 16,940 lb.
S32 100 lb.525 lb. 23,100 lb.
S35 100 lb.630 lb. 27,720 lb.
S38 100 lb.680 lb. 29,920 lb.
S38HS 100 lb.680 lb. 29,920 lb.
S60 125 lb.850 lb. 37,400 lb.
S60HS 125 lb.850 lb. 37,400 lb.
iM Series
iM16K 99 lb. 800 lb.
iM30K 125 lb.850 lb. 37,400 lb.
Box Weights
*Box weights may vary due to manufacturing tolerances on each product.
Resources
3M
Glass Bubbles are supported by global sales, technical and
customer service resources, with fully-staffed technical service
laboratories in the U.S., Europe, Japan, Latin America and
Southeast Asia. Users benefit from 3M s broad technology base
and continuing attention to product development, performance,
safety and environmental issues.
For additional technical information on 3M glass bubbles in the
United States, call 3M Advanced Materials Division, 800-367-8905 .
For other 3M global offices, and information on additional 3M
products, visit our website at: www.3M.com/engineeredadditives .
3M
Glass Bubbles K, S and iM Series
Please recycle. Printed in USA.
3M 2013. All rights reserved.
Issued: 3/13 9049HB
98-0212-3859-1
3M is a trademark of 3M. Used under license
by 3M subsidiaries and affiliates.
3M Center
St. Paul, MN 55144-1000
1-800-367-8905
www.3M.com/engineeredadditives
3
Warranty, Limited Remedy, and Disclaimer: Many factors beyond 3M s control and uniquely within user s knowledge and control can affect the use and performance of a 3M product
in a particular application. User is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user s method of application.
Unless a different warranty is specifically stated in the applicable product literature or packaging insert, 3M warrants that each 3M product meets the applicable 3M product specification at
the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M
product does not conform to this warranty, then the sole and exclusive remedy is, at 3M s option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damages arising from the 3M product, whether direct, indirect, special, incidental or
consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.
Technical Information: Technical information, recommendations, and other statements contained in this document or provided by 3M personnel are based on tests or experience that 3M
believes are reliable, but the accuracy or completeness of such information is not guaranteed. Such information is intended for persons with knowledge and technical skills sufficient to
assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information.
by | Sep 27, 2025
3
Introduction
3M
Glass Bubbles are engineered hollow glass microspheres
that are alternatives to conventional fillers and additives such as
silicas, calcium carbonate, talc, clay, etc., for many demanding
applications. These low-density particles are used in a wide range
of industries to reduce part weight, lower costs and enhance
product properties.
The unique spherical shape of 3M glass bubbles offers a number
of important benefits, including: higher filler loading, lower
viscosity/improved flow and reduced shrinkage and warpage. It
also helps the 3M glass bubbles blend readily into compounds
and makes them adaptable to a variety of production processes
including spraying, casting and molding.
The chemically stable soda-lime-borosilicate glass composition
of 3M glass bubbles provides excellent water resistance to create
more stable emulsions. They are also non-combustible and non-
porous, so they do not absorb resin. And, their low alkalinity gives
3M glass bubbles compatibility with most resins, stable viscosity
and long shelf life.
3M Glass Bubbles K Series, S Series and iM Series are specially
formulated for a high strength-to-weight ratio. This allows greater
survivability under many demanding processing conditions, such
as injection molding. They also produce stable voids, which results
in low thermal conductivity and a low dielectric constant. 3M glass
bubbles are available in a variety of sizes and grades to help you
meet your product and processing requirements.
3M
Glass Bubbles
K Series, S Series and iM Series
Product Information
Product
Test Pressure
(psi)
Target Fractional
Survival
Minimum
Fractional
Survival
K Series
K1 250 90% 80%
K15 300 90% 80%
K20 500 90% 80%
K25 750 90% 80%
K37 3,000 90% 80%
K46 6,000 90% 80%
S Series
S15 300 90% 80%
S22 400 90% 80%
S32 2,000 90% 80%
S35 3,000 90% 80%
S38 4,000 90% 80%
S38HS 5,500 90% 80%
S60 10,000 90% 80%
S60HS 18,000 90% 90%
iM Series
iM16K 16,000 90% 90%
iM30K 28,000 90% 90%
Isostatic Crush Strength
True Density (g/cc)
Product Typical Minimum Maximum
K Series
K1 0.125 0.10 0.14
K15 0.15 0.13 0.17
K20 0.20 0.18 0.22
K25 0.25 0.23 0.27
K37 0.37 0.34 0.40
K46 0.46 0.43 0.49
S Series
S15 0.15 0.13 0.17
S22 0.22 0.19 0.25
S32 0.32 0.29 0.35
S35 0.35 0.32 0.38
S38 0.38 0.35 0.41
S38HS 0.38 0.35 0.41
S60 0.60 0.57 0.63
S60HS 0.60 0.57 0.63
iM Series
iM16K 0.46 0.43 0.49
iM30K 0.60 0.57 0.63
True Density
Typical Properties
Not for specification purposes
Typical Properties
Chemical Resistance
In general, the chemical properties of 3M
Glass Bubbles
resemble those of a soda-lime-borosilicate glass.
Thermal Conductivity
Product
Calculated Thermal Conductivity
(W m-1 K-1) at 70 F (21 C)
K Series
K1 0.047
K15 0.055
K20 0.070
K25 0.085
K37 0.124
K46 0.153
S Series
S15 0.055
S22 0.076
S32 0.108
S35 0.117
S38 0.127
S38HS 0.127
S60 0.200
S60HS 0.200
iM Series
iM16K 0.153
iM30K 0.200
Conductivity increases with temperature and product density. The
thermal conductivity of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Thermal Stability
Appreciable changes in bubble properties may occur above 1112 F
(600 C) depending on temperature and duration of exposure.
Flotation
Floaters (% by bulk volume)
Product Typical Minimum
K Series
K1 96% 90%
K15 96% 90%
K20 96% 90%
K25 96% 90%
K37 94% 90%
K46 92% 90%
S Series
S15 96% 90%
S22 96% 90%
S32 94% 90%
S35 96% 90%
S38 94% 90%
S38HS 96% 90%
S60 92% 90%
S60HS 92% 90%
iM Series
iM16K 96% 90%
iM30K 92% 90%
Packing Factor (Ratio of bulk density to true particle density)
Averages about 60%.
Oil Absorption
0.2 0.6 g oil/cc of 3M glass bubbles, per ASTM D281-84.
Volatile Content
Maximum of 0.5 percent by weight.
Alkalinity
Maximum of 0.5 milliequivalents per gram
pH
Because 3M glass bubbles are a dry powder, pH is not defined. The pH effect will be determined by the alkalinity as indicated above. When 3M glass bubbles are mixed with deionized water at 5% volume loading, the resulting pH of the slurry is typically 9.1 to 9.9, as measured by a pH meter.
Dielectric Constant
K Series: 1.2 to 1.7 @ 100 MHz, based on theoretical calculations.
S Series: 1.2 to 2.0 @ 100 MHz, based on theoretical calculations.
iM Series: 1.2 to 1.7 @ 100 MHz, based on theoretical
calculations
The dielectric constant of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Particle Size
Particle Size (microns, by volume) 3M QCM 193.0
Product Distribution
Effective
Top Size10th% 50th% 90th%
K Series
K1 30 65 115 120
K15 30 60 105 115
K20 30 60 90 105
K25 25 55 90 105
K37 20 45 80 85
K46 15 40 70 80
S Series
S15 25 55 90 95
S22 20 35 65 75
S32 20 40 70 80
S35 20 40 65 80
S38 15 40 75 85
S38HS 19 44 70 85
S60 15 30 55 65
S60HS 12 29 48 60
iM Series
iM16K 12 20 30 40
iM30K 8.6 15.3 23.6 26.7
3M
Glass Bubbles K, S and iM Series
Minimum storage conditions should be unopened cartons in an
unheated warehouse.
Under high humidity conditions with an ambient temperature
cycling over a wide range, moisture can be drawn into the bag
as the temperature drops and the air contracts. The result may
be moisture condensation within the bag. Extended exposure to
these conditions may result in caking of the 3M glass bubbles
to various degrees. To minimize the potential for caking and
prolong the storage life, the following suggestions are made:
1. Carefully re-tie open bags after use.
2. If the polyethylene bag is punctured during shipping or
handling, use this bag as soon as possible, patch the hole,
or insert the contents into an undamaged bag.
3. During humid summer months, store in the driest, coolest
space available.
4. If good storage conditions are unavailable, carry a
minimum inventory, and process on a first in/first
out basis.
Dusting problems that may occur while handling and processing
can be minimized by the following procedures:
1. For eye protection wear chemical safety goggles. For
respiratory system protection wear an appropriate NIOSH/
MSHA approved respirator. (For additional information
about personal protective equipment, refer to Material
Safety Data Sheet.)
2. Use appropriate ventilation in the work area.
3. Pneumatic conveyor systems have been used successfully
to transport 3M glass bubbles without dusting from
shipping containers to batch mixing equipment. Static
eliminators should be used to help prevent static charges.
Diaphragm pumps have been used to successfully convey
3M glass bubbles. Vendors should be consulted for
specific recommendations.
3M glass bubble breakage may occur if the product is improperly
processed. To minimize breakage, avoid high shear processes such
as high speed Cowles Dissolvers, point contact shear such as gear
pumps or 3-roll mills, and processing pressures above the strength
test pressure for each product.
Health and Safety Information
For product Health and Safety Information, refer to product label
and Material Safety Data Sheet (MSDS) before using product.
Particle Size (continued)
Hard Particles (3M QCM 93.4.3)
No hard particles (e.g. glass slag, flow agent, etc.) greater than
U.S. number 40 (420 microns) standard sieve will exist.
Oversize Particles (3M QCM 93.4.4)
For K1, K15, K20 and K25 glass bubbles:
Using a 10 gram sample on a U.S. number 80 standard sieve
(177 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
For K37 and K46 glass bubbles:
Using a 10 gram sample on U.S. number 100 standard sieve
(149 microns), a maximum of one (1) percent by weight glass
bubbles will be retained on the sieve.
For S15, S32, S35, S38, S38HS, S60, S60HS, iM16K and iM30K
glass bubbles:
Using a 10 gram sample on a U.S. number 140 standard sieve
(105 microns), a maximum of three (3) percent by weight glass
bubbles will be retained on the sieve.
For S22 glass bubbles:
Using a 10 gram sample on a U.S. number 200 standard sieve
(74 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
Appearance (3M QCM 22.85)
White to the unaided eye.
Flow (3M QCM 22.83)
3M
Glass Bubbles remain free flowing for at least one year from
the date of shipment if stored in the original, unopened container
in the minimum storage conditions of an unheated warehouse.
Labeling
3M glass bubbles will be packaged in suitable containers to help
prevent damage during normal handling and shipping. Each
container will be labeled with:
1. Name of manufacturer
2. Type of 3M glass bubbles
3. Lot number
4. Quantity in pounds
Storage and Handling
To help ensure ease of storage and handling while maintaining
free flowing properties, 3M
Glass Bubbles have been made
from a chemically stable glass and are packaged in a heavy-duty
polyethylene bag within a cardboard container.
Packaging Information
Small Box (10 Cubic ft.)
A single corrugated box with a plastic liner. All boxes are
banded together and to the wooden pallet. 4 boxes per pallet.
Each box inside diameter is 22 in. 19 in. 39 in.
Pallet size is 42 in. 48 in.
Large Box (50 Cubic ft.)*
A single corrugated box with a plastic liner. Top enclosed
with interlocking double cover banded. Bottom is normal box
closure, entire box banded to wooden pallet.
Each box inside diameter is 48 in. 42 in. 44 in. Overall
load size is 48
3
/4 in. 42
3
/4 in. 50 in. including pallet.
Pallet size is 42 in. 48 in.
*S60 and S60HS large boxes are 38 cubic ft.
Product
Small
Box
Large
Box*
Truckload Large Box*
44 Pallets
K Series
K1 40 lb. 210 lb. 9,240 lb.
K15 50 lb. 265 lb. 11,660 lb.
K20 60 lb. 350 lb. 15,400 lb.
K25 80 lb. 430 lb. 18,920 lb.
K37 100 lb.660 lb. 29,040 lb.
K46 125 lb.815 lb. 35,860 lb.
S Series
S15 50 lb. 265 lb. 11,660 lb.
S22 60 lb. 385 lb. 16,940 lb.
S32 100 lb.525 lb. 23,100 lb.
S35 100 lb.630 lb. 27,720 lb.
S38 100 lb.680 lb. 29,920 lb.
S38HS 100 lb.680 lb. 29,920 lb.
S60 125 lb.850 lb. 37,400 lb.
S60HS 125 lb.850 lb. 37,400 lb.
iM Series
iM16K 99 lb. 800 lb.
iM30K 125 lb.850 lb. 37,400 lb.
Box Weights
*Box weights may vary due to manufacturing tolerances on each product.
Resources
3M
Glass Bubbles are supported by global sales, technical and
customer service resources, with fully-staffed technical service
laboratories in the U.S., Europe, Japan, Latin America and
Southeast Asia. Users benefit from 3M s broad technology base
and continuing attention to product development, performance,
safety and environmental issues.
For additional technical information on 3M glass bubbles in the
United States, call 3M Advanced Materials Division, 800-367-8905 .
For other 3M global offices, and information on additional 3M
products, visit our website at: www.3M.com/engineeredadditives .
3M
Glass Bubbles K, S and iM Series
Please recycle. Printed in USA.
3M 2013. All rights reserved.
Issued: 3/13 9049HB
98-0212-3859-1
3M is a trademark of 3M. Used under license
by 3M subsidiaries and affiliates.
3M Center
St. Paul, MN 55144-1000
1-800-367-8905
www.3M.com/engineeredadditives
3
Warranty, Limited Remedy, and Disclaimer: Many factors beyond 3M s control and uniquely within user s knowledge and control can affect the use and performance of a 3M product
in a particular application. User is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user s method of application.
Unless a different warranty is specifically stated in the applicable product literature or packaging insert, 3M warrants that each 3M product meets the applicable 3M product specification at
the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M
product does not conform to this warranty, then the sole and exclusive remedy is, at 3M s option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damages arising from the 3M product, whether direct, indirect, special, incidental or
consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.
Technical Information: Technical information, recommendations, and other statements contained in this document or provided by 3M personnel are based on tests or experience that 3M
believes are reliable, but the accuracy or completeness of such information is not guaranteed. Such information is intended for persons with knowledge and technical skills sufficient to
assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information.
by | Sep 27, 2025
3
Introduction
3M
Glass Bubbles are engineered hollow glass microspheres
that are alternatives to conventional fillers and additives such as
silicas, calcium carbonate, talc, clay, etc., for many demanding
applications. These low-density particles are used in a wide range
of industries to reduce part weight, lower costs and enhance
product properties.
The unique spherical shape of 3M glass bubbles offers a number
of important benefits, including: higher filler loading, lower
viscosity/improved flow and reduced shrinkage and warpage. It
also helps the 3M glass bubbles blend readily into compounds
and makes them adaptable to a variety of production processes
including spraying, casting and molding.
The chemically stable soda-lime-borosilicate glass composition
of 3M glass bubbles provides excellent water resistance to create
more stable emulsions. They are also non-combustible and non-
porous, so they do not absorb resin. And, their low alkalinity gives
3M glass bubbles compatibility with most resins, stable viscosity
and long shelf life.
3M Glass Bubbles K Series, S Series and iM Series are specially
formulated for a high strength-to-weight ratio. This allows greater
survivability under many demanding processing conditions, such
as injection molding. They also produce stable voids, which results
in low thermal conductivity and a low dielectric constant. 3M glass
bubbles are available in a variety of sizes and grades to help you
meet your product and processing requirements.
3M
Glass Bubbles
K Series, S Series and iM Series
Product Information
Product
Test Pressure
(psi)
Target Fractional
Survival
Minimum
Fractional
Survival
K Series
K1 250 90% 80%
K15 300 90% 80%
K20 500 90% 80%
K25 750 90% 80%
K37 3,000 90% 80%
K46 6,000 90% 80%
S Series
S15 300 90% 80%
S22 400 90% 80%
S32 2,000 90% 80%
S35 3,000 90% 80%
S38 4,000 90% 80%
S38HS 5,500 90% 80%
S60 10,000 90% 80%
S60HS 18,000 90% 90%
iM Series
iM16K 16,000 90% 90%
iM30K 28,000 90% 90%
Isostatic Crush Strength
True Density (g/cc)
Product Typical Minimum Maximum
K Series
K1 0.125 0.10 0.14
K15 0.15 0.13 0.17
K20 0.20 0.18 0.22
K25 0.25 0.23 0.27
K37 0.37 0.34 0.40
K46 0.46 0.43 0.49
S Series
S15 0.15 0.13 0.17
S22 0.22 0.19 0.25
S32 0.32 0.29 0.35
S35 0.35 0.32 0.38
S38 0.38 0.35 0.41
S38HS 0.38 0.35 0.41
S60 0.60 0.57 0.63
S60HS 0.60 0.57 0.63
iM Series
iM16K 0.46 0.43 0.49
iM30K 0.60 0.57 0.63
True Density
Typical Properties
Not for specification purposes
Typical Properties
Chemical Resistance
In general, the chemical properties of 3M
Glass Bubbles
resemble those of a soda-lime-borosilicate glass.
Thermal Conductivity
Product
Calculated Thermal Conductivity
(W m-1 K-1) at 70 F (21 C)
K Series
K1 0.047
K15 0.055
K20 0.070
K25 0.085
K37 0.124
K46 0.153
S Series
S15 0.055
S22 0.076
S32 0.108
S35 0.117
S38 0.127
S38HS 0.127
S60 0.200
S60HS 0.200
iM Series
iM16K 0.153
iM30K 0.200
Conductivity increases with temperature and product density. The
thermal conductivity of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Thermal Stability
Appreciable changes in bubble properties may occur above 1112 F
(600 C) depending on temperature and duration of exposure.
Flotation
Floaters (% by bulk volume)
Product Typical Minimum
K Series
K1 96% 90%
K15 96% 90%
K20 96% 90%
K25 96% 90%
K37 94% 90%
K46 92% 90%
S Series
S15 96% 90%
S22 96% 90%
S32 94% 90%
S35 96% 90%
S38 94% 90%
S38HS 96% 90%
S60 92% 90%
S60HS 92% 90%
iM Series
iM16K 96% 90%
iM30K 92% 90%
Packing Factor (Ratio of bulk density to true particle density)
Averages about 60%.
Oil Absorption
0.2 0.6 g oil/cc of 3M glass bubbles, per ASTM D281-84.
Volatile Content
Maximum of 0.5 percent by weight.
Alkalinity
Maximum of 0.5 milliequivalents per gram
pH
Because 3M glass bubbles are a dry powder, pH is not defined. The pH effect will be determined by the alkalinity as indicated above. When 3M glass bubbles are mixed with deionized water at 5% volume loading, the resulting pH of the slurry is typically 9.1 to 9.9, as measured by a pH meter.
Dielectric Constant
K Series: 1.2 to 1.7 @ 100 MHz, based on theoretical calculations.
S Series: 1.2 to 2.0 @ 100 MHz, based on theoretical calculations.
iM Series: 1.2 to 1.7 @ 100 MHz, based on theoretical
calculations
The dielectric constant of a composite will depend on the matrix
material and volume loading of 3M glass bubbles.
Particle Size
Particle Size (microns, by volume) 3M QCM 193.0
Product Distribution
Effective
Top Size10th% 50th% 90th%
K Series
K1 30 65 115 120
K15 30 60 105 115
K20 30 60 90 105
K25 25 55 90 105
K37 20 45 80 85
K46 15 40 70 80
S Series
S15 25 55 90 95
S22 20 35 65 75
S32 20 40 70 80
S35 20 40 65 80
S38 15 40 75 85
S38HS 19 44 70 85
S60 15 30 55 65
S60HS 12 29 48 60
iM Series
iM16K 12 20 30 40
iM30K 8.6 15.3 23.6 26.7
3M
Glass Bubbles K, S and iM Series
Minimum storage conditions should be unopened cartons in an
unheated warehouse.
Under high humidity conditions with an ambient temperature
cycling over a wide range, moisture can be drawn into the bag
as the temperature drops and the air contracts. The result may
be moisture condensation within the bag. Extended exposure to
these conditions may result in caking of the 3M glass bubbles
to various degrees. To minimize the potential for caking and
prolong the storage life, the following suggestions are made:
1. Carefully re-tie open bags after use.
2. If the polyethylene bag is punctured during shipping or
handling, use this bag as soon as possible, patch the hole,
or insert the contents into an undamaged bag.
3. During humid summer months, store in the driest, coolest
space available.
4. If good storage conditions are unavailable, carry a
minimum inventory, and process on a first in/first
out basis.
Dusting problems that may occur while handling and processing
can be minimized by the following procedures:
1. For eye protection wear chemical safety goggles. For
respiratory system protection wear an appropriate NIOSH/
MSHA approved respirator. (For additional information
about personal protective equipment, refer to Material
Safety Data Sheet.)
2. Use appropriate ventilation in the work area.
3. Pneumatic conveyor systems have been used successfully
to transport 3M glass bubbles without dusting from
shipping containers to batch mixing equipment. Static
eliminators should be used to help prevent static charges.
Diaphragm pumps have been used to successfully convey
3M glass bubbles. Vendors should be consulted for
specific recommendations.
3M glass bubble breakage may occur if the product is improperly
processed. To minimize breakage, avoid high shear processes such
as high speed Cowles Dissolvers, point contact shear such as gear
pumps or 3-roll mills, and processing pressures above the strength
test pressure for each product.
Health and Safety Information
For product Health and Safety Information, refer to product label
and Material Safety Data Sheet (MSDS) before using product.
Particle Size (continued)
Hard Particles (3M QCM 93.4.3)
No hard particles (e.g. glass slag, flow agent, etc.) greater than
U.S. number 40 (420 microns) standard sieve will exist.
Oversize Particles (3M QCM 93.4.4)
For K1, K15, K20 and K25 glass bubbles:
Using a 10 gram sample on a U.S. number 80 standard sieve
(177 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
For K37 and K46 glass bubbles:
Using a 10 gram sample on U.S. number 100 standard sieve
(149 microns), a maximum of one (1) percent by weight glass
bubbles will be retained on the sieve.
For S15, S32, S35, S38, S38HS, S60, S60HS, iM16K and iM30K
glass bubbles:
Using a 10 gram sample on a U.S. number 140 standard sieve
(105 microns), a maximum of three (3) percent by weight glass
bubbles will be retained on the sieve.
For S22 glass bubbles:
Using a 10 gram sample on a U.S. number 200 standard sieve
(74 microns), a maximum of five (5) percent by weight glass
bubbles will be retained on the sieve.
Appearance (3M QCM 22.85)
White to the unaided eye.
Flow (3M QCM 22.83)
3M
Glass Bubbles remain free flowing for at least one year from
the date of shipment if stored in the original, unopened container
in the minimum storage conditions of an unheated warehouse.
Labeling
3M glass bubbles will be packaged in suitable containers to help
prevent damage during normal handling and shipping. Each
container will be labeled with:
1. Name of manufacturer
2. Type of 3M glass bubbles
3. Lot number
4. Quantity in pounds
Storage and Handling
To help ensure ease of storage and handling while maintaining
free flowing properties, 3M
Glass Bubbles have been made
from a chemically stable glass and are packaged in a heavy-duty
polyethylene bag within a cardboard container.
Packaging Information
Small Box (10 Cubic ft.)
A single corrugated box with a plastic liner. All boxes are
banded together and to the wooden pallet. 4 boxes per pallet.
Each box inside diameter is 22 in. 19 in. 39 in.
Pallet size is 42 in. 48 in.
Large Box (50 Cubic ft.)*
A single corrugated box with a plastic liner. Top enclosed
with interlocking double cover banded. Bottom is normal box
closure, entire box banded to wooden pallet.
Each box inside diameter is 48 in. 42 in. 44 in. Overall
load size is 48
3
/4 in. 42
3
/4 in. 50 in. including pallet.
Pallet size is 42 in. 48 in.
*S60 and S60HS large boxes are 38 cubic ft.
Product
Small
Box
Large
Box*
Truckload Large Box*
44 Pallets
K Series
K1 40 lb. 210 lb. 9,240 lb.
K15 50 lb. 265 lb. 11,660 lb.
K20 60 lb. 350 lb. 15,400 lb.
K25 80 lb. 430 lb. 18,920 lb.
K37 100 lb.660 lb. 29,040 lb.
K46 125 lb.815 lb. 35,860 lb.
S Series
S15 50 lb. 265 lb. 11,660 lb.
S22 60 lb. 385 lb. 16,940 lb.
S32 100 lb.525 lb. 23,100 lb.
S35 100 lb.630 lb. 27,720 lb.
S38 100 lb.680 lb. 29,920 lb.
S38HS 100 lb.680 lb. 29,920 lb.
S60 125 lb.850 lb. 37,400 lb.
S60HS 125 lb.850 lb. 37,400 lb.
iM Series
iM16K 99 lb. 800 lb.
iM30K 125 lb.850 lb. 37,400 lb.
Box Weights
*Box weights may vary due to manufacturing tolerances on each product.
Resources
3M
Glass Bubbles are supported by global sales, technical and
customer service resources, with fully-staffed technical service
laboratories in the U.S., Europe, Japan, Latin America and
Southeast Asia. Users benefit from 3M s broad technology base
and continuing attention to product development, performance,
safety and environmental issues.
For additional technical information on 3M glass bubbles in the
United States, call 3M Advanced Materials Division, 800-367-8905 .
For other 3M global offices, and information on additional 3M
products, visit our website at: www.3M.com/engineeredadditives .
3M
Glass Bubbles K, S and iM Series
Please recycle. Printed in USA.
3M 2013. All rights reserved.
Issued: 3/13 9049HB
98-0212-3859-1
3M is a trademark of 3M. Used under license
by 3M subsidiaries and affiliates.
3M Center
St. Paul, MN 55144-1000
1-800-367-8905
www.3M.com/engineeredadditives
3
Warranty, Limited Remedy, and Disclaimer: Many factors beyond 3M s control and uniquely within user s knowledge and control can affect the use and performance of a 3M product
in a particular application. User is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user s method of application.
Unless a different warranty is specifically stated in the applicable product literature or packaging insert, 3M warrants that each 3M product meets the applicable 3M product specification at
the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M
product does not conform to this warranty, then the sole and exclusive remedy is, at 3M s option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damages arising from the 3M product, whether direct, indirect, special, incidental or
consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.
Technical Information: Technical information, recommendations, and other statements contained in this document or provided by 3M personnel are based on tests or experience that 3M
believes are reliable, but the accuracy or completeness of such information is not guaranteed. Such information is intended for persons with knowledge and technical skills sufficient to
assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information.
by | Sep 27, 2025
Crestamould
T27
Polyester-based sprayable and machinable
tooling compound
Product Overview
Crestamould
T27 is a sprayable modified polyester compound designed for milling of large plugs (10-
25 m, 30-75 ft, ) or direct limited production moulds with Computer Numerical Control (CNC) multiple
axis machines. This material combines unique qualities, can be sprayed with few passes up to a thickness
of approx. 25mm (1 ). Crestamould
T27 provides a homogenous substrate that prevents print from
the underlying structure, and gives sufficient flexibility to prevent cracks. Crestamould
T27 retains its
machinability over time – it is as easy to machine after 6 months as when freshly sprayed. Crestamould
T27 is available as a R (Regular) and S (Summer) version. Moulds using Crestamould
Tooling Resin RTR
4010PA are successfully produced with Crestamould
T27 plugs.
Features and Benefits
Fast application, build-up with few passes
Tough and resilient, remains non-brittle
Maintains dimensional tolerance over time
Low shrinkage, low exother
Easy to cut and machine with carbide tools
Machines/ shaves like wood – no dust generation
Low tool wear
Remarkable profile of finished parts
No settling in the equipment
Easy to repair – bonds to itself
Compatible with poly/ vinylester sanding primers
Constant hardness over time, after 24 hours, or
after 6 months
www.scottbader.com Crestamould
T27 | Page 1 of 3 | Version: February 2019
General Properties
Colour Pink
Density 1.04 – 1.10 g/cc; 8.6 – 9.2 lbs gallon
Viscosity, Brookfield HAF T-C, @ 5rpm, 24
o
C 196,000 – 216,000 cps
Thixotropic Index 5-7
Peak Exotherm, 100 gram mass 132 C (270 F)
Hardness after 24 Hours, 24
o
C (75
o
F) Minimum 55 Shore D
www.scottbader.com
Process Temperature
The ideal shop temperature is 25
o
C (77
o
F). The useable range for Crestamould
T27 R (Regular) is from
21
o
C (70
o
F) to 29
o
C (85
o
F); for Crestamould
T27 S (Summer) it is from 24
o
C (75
o
F) to 35
o
C (95
o
F).
Maintain catalyst levels between 1.25 and 1.8% by volume. Below 21
o
C (70
o
F) obtaining a spray pattern will
be difficult.
Catalyst Types
Catalyst used for internal ATC QC is Arkema Luperox DDM-9. An equivalent catalyst is Luperox K1.
Catalysts in the same category are Syrgis Norox MEKP-9; Syrgis Superox 702; Norpol Peroxide 1; Syrgis
Andonox KP-9; Akzo Cadox D-50a. Hi-Dimer type catalysts used for VE resins and gelcoats can be used
but can slow down the reaction and can increase exotherm. High hydrogen peroxide content (Luperox
DeltaX-9), low exoterm blends (Andonox KP-9LE) and CHP blends (MCP) catalysts are to be avoided.
MEKP (Arkema Luperox
DDM-9, SG 1.004 g/cc)
1.8% by volume
(minimum 1.25%, maximum 1.8%); set
Geltime* at 24
o
C (75
o
F) R – Regular version
pump slave arm at 1
1
/4, 1
1
/2 and
1
3
/4 % respectively
Geltime* at 29
o
C (85
o
F) S – Summer version
15 – 20 minutes (100 gram mass)
@ 1.8% by volume
Exotherm, 3/8 (10mm) thickness
15 – 20 minutes (100 gram mass)
@ 1.8% by volume
Coverage Less than 54
o
C (130
o
F)
Catalysation
Catalyst levels are stated by volume. If used by weight, adjust catalyst levels taking specific gravity of the various catalysts into account.
Caution: Follow recommended catalyst types and ratios. Do not exceed a catalyst ratio of 1.8% by volume, nor catalyze below
1.25% in hot temperatures. For consistent results, maintain the recommended shop temperature and a constant catalyst ratio.
Crestamould
T27 | Page 2 of 3 | Version: February 2019
Equipment
Crestamould
T27 is dispensed through an internal mix catalyst pumping/ spraying system with a
ram-type equipment such as the Magnum Venus Industries Putty Unit (www.mvpind.com); the GS
Manufacturing BWX Putty Dispensing System (www.gsmfg.com); or Glascraft, (www.glascraft.com).
The spray fan is obtained by selecting larger than normal spray fan angles for the nozzles (i.e. 70
o
nominal
angle). Vertical hang is non-sagging up to 10mm (3/8 ) wet on wet. An alternative to spraying for large
parts is to use a splatter head arrangement. This allows higher output with less overspray but induces
surface texture. to 5mm (3/16 ) can be applied, waiting for a relative cool-down between the passes,
to approx. 43
o
-49
o
C (110
o
-120
o
F). This is repeated until the desired thickness is achieved. The coverage is
1 litre/1mm/m2; or 0.624 gallons/board ft. (12 x12 x1 ).
Application
The first coat is critical. A layer of no more than 3mm (1/8 ) and no less than 1.5mm (1/16 ) should be
uniformly applied and allowed to gel, exotherm and cool down. Duration approx. 1 – 1.5 hours. Once this
first coat is down to room temperature, subsequent coats of 3mm (1/8 ) to 5mm (3/16 ) can be applied,
waiting for a relative cool-down between the passes to approx. 43
o
-49
o
C (110
o
-120
o
F). This is repeated
until the total desired thickness is achieved. Most applications aim for 20 – 25mm (3/4 – 1 ) total thickness
prior to machining. The secondary bonding window is such that no sanding is required between coats if
the job is stopped. The coverage is 1 litre/1mm/m
2
(0.6 gallons per inch per ft
2
). Tool marks are removed
with 40 grit sandpaper. The surface needs no further preparation prior to sanding primer application.
www.scottbader.com
Machining
Use carbide tools. Use a positive rake; 2,3 or 4 flutes. End-mill tools are used for the majority of the work,
ball-end tools for finishing. Calculate a chip load of 0.4 – 0.5mm (0.015 – 0.020 ) to set the feed rate versus
rpm versus number of flutes. Adjust speeds to avoid overheating or overloading and material pull out. Do
not leave the CNC unattended. Brush or blow off material as it accumulates on flat surfaces. If possible, blow
air at tool-tip. A shop temperature of 24
o
C (75
o
F) and above will improve machining and reduce tool wear.
Colder temperature will make the Crestamould
T27 harder. Remove shavings daily from part.
Caution: Accumulation of shavings that were produced from under- or overcatalyzed material can
generate heat and smoke in extreme cases with charing of the material. To avoid this, maintain
recommended catalyzation percentages (see page 1), remove shavings regularly and fill shavings in
metal drums, pack it down, add water and store outside.
Crestamould
T27 | Page 3 of 3 | Version: February 2019
Additional Information
Shelf life
Crestamould
T27 is a stable product, and adequate long-term storage conditions will result in a shelf life
of 12 months. Do not store outside or in direct sunlight. After this time, the gel time may drift, and should
be checked before use.
Storage
The product should be kept in securely enclosed containers. Storage should be in a dry place and out
of direct sunlight. The temperature should be between 18
o
-25
o
C (65
o
-77
o
F). Allow material to reach shop
temperature before using. Keep containers closed to eliminate styrene evaporation and to avoid change in
properties of the material. Rotate stock to use oldest batch numbers first.
Mixing
Not required.
2019 ScottBader Co Ltd, February 2019
All information on this data sheet is based on laboratory testing and is not intended for design purposes. Scott Bader makes no representations or warranties of any kind
concerning this data. Due to variance of storage, handling and application of these materials, Scott Bader cannot accept liability for results obtained. The manufacture of
materials is the subject of granted patents and patent applications; freedom to operate patented processes is not implied by this publication.
Scott Bader UK
Wollaston
Wellingborough
Northants
NN29 7RL
UK
Tel: +44 (0)1933 663100
email: enquiries@scottbader.com
by | Sep 27, 2025
by | Sep 27, 2025
TMES 99
PRODUCT USAGE
EverStrong ES99 is designed to be applied to the reinforcing materials or mold prior to placement. Spray a uniform coat to
the surface to be adhered. If heavy mat or pad, apply adhesive to both surfaces about to be joined. Spray an even coat of
adhesive with at least 80% to 100% coverage of each surface. Allow to briefly dry until tacky. Place the surfaces together and
apply pressure. For best results: Make sure that the surfaces are dry and free from dirt, grease or oil. Ensure that the adhesives
and materials are at 60 F or higher. If surfaces are porous, a heavier coat is recommended.
STORAGE
For canisters, do not close the valve after use. Leave the gun and
hose connected to the canister. Recommended to store canister off
the floor if temperatures below 60 F.
PHYSICAL PROPERTIES
Appearance: Liquid, clear or blue
Specific Gravity: .74 + .03
Spray Tip: 6501
Spray Pattern: Pebble Spray
Flammability: Flammable per ASTM E-681-04
Solvent: Hydrocarbons
Shelf Life: 15 months
Freezing: Not damaged by freezing but return to room
temp before use.
PACKAGING
ES99-0013C(B) 13 oz Aerosol Can
ES99-009C(B) 9 lbs Disposable Canister
ES99-030C(B) 30 lbs Disposable Canister
ES99-140C(B) 140 lbs Returnable Canister
ES99-270C(B) 270 lbs Returnable Canister
All available in Clear (C) or Blue (B)
Specifically Formulated
for Infusion
Vacuum Molding
Fast Tack for securing
reinforcing materials
in mold
Low Shrinkage
during Cure
NO HAPS
Compatible with
Infusion resins
EverStrong ES99 is a specialty industrial spray adhesive specifically designed for the infusion
molding process. ES99 is designed to adhere and hold reinforcing fiberglass materials (mats,
pads, strips) in place prior to and during resin infusion. Specifically formulated for the infusion
process, ES99 will not interfere with the polymer matrix integrity and will cross-link with resins
to create an integrated matrix.
KEY FEATURES
Specifically Formulated for Infusion
Vacuum Molding
Fast Tack for securing reinforcing materials
in mold
Low Shrinkage during Cure
NO HAPS
Compatible with Infusion resins
ES99-3
VACUUM INFUSION
ADHESIVE
Disclaimer of Warranty: NewStar Adhesives Inc. expressly disclaims all warranties either expressed or implied, including but not
limited to merchantability and fitness for particular purpose. User is responsible for determining this product is fit for specific
purpose and application method and assumes all risk and liability herewith. Manufacturer liability is limited to replacement of
product or reimbursement of purchase cost, at our discretion. This provision relates to all sales and cannot be modified.
Manufacturer: NewStar Adhesives Inc., gluepros@newstaradhesives.com, 855-497-0700
See MSDS Data Sheet for Proper Handling and Safety Information
NO ADHESIVE
NO ADHESIVE
FLEX STRENGTH
MODULUS OF ELASTICITY
EVERSTRONG ES99 Infusion Adhesive reinforces the matrix making it both stronger and more
flexible than all other competitive adhesives.
23.4%
0.3%
ES99
ES99
COMP N
COMP N
COMP Q
COMP Q
COMP M
COMP M
4.2%
-2.0%
0.0%
0.0%
-6.3%
-4.5%
-6.0%
-11.1%
ES 99
Specifically Formulated
for Infusion
Vacuum Molding
Fast Tack for securing
reinforcing materials
in mold
Low Shrinkage
during Cure
NO HAPS
Compatible with
Infusion resins
VACUUM INFUSION
ADHESIVE
Max Flex Test (N/m2)
MOE (N/m2)
In terms of Elasticity, ES99 improved the Modulus of Elasticity as compared to all competitive adhesives.
Indeed ES99 was the ONLY adhesive that improved the elasticity of the samples. All other adhesives
reduced the elasticity compared to the control samples made without adhesive.
* An independent 3rd party prepared 5-ply fiberglass/resin panels using ES99 and all major competitive adhesives as well as a
control panel constructed without adhesive. Five (5) samples from each panel were prepared and tested per ASTM D790
protocol by CERL/MCA laboratories. Lab report is available upon request.
In tests per ASTM D790, independ
ent laboratories* found ES99 improved the strength of samples almost 20% and 30% compared
t
o competitive adhesives. In fact, ES99 samples were found to be even stronger than samples made without adhesive.
TM
by | Sep 27, 2025
by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the certificate of
analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 10/17
PA-133-PMMN is a reinforced polyester adhesive. It is designed specifically for bonding FRP parts and forming contours.
This product offers excellent adhesion and shear strength. Curing time may be adjusted to suit the customer s specific
needs by varying the level of methyl ethyl ketone peroxide (MEKP) initiator.
FEATURES BENEFITS
Strong and Tough Adhesive Provides excellent adhesion to FRP
Void-Free Consistency Minimizes air entrapment and weak spots
Excellent Vertical Hang Properties Easily applied by trowel or putty knife
Reinforced Added strength and adhesion properties
RELATED PRODUCTS Gel Time, minutes
PA-133-PMMN 15-30
PA-133-PMMN-S 25-30
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model RV, Spindle T-E @ 5 rpm, 77 F (25 C), cPs 550,000-650,000
100 grams adhesive @ 77 F (25 C), initiated with 1.0% M-50a by weight*
Gel Time, min:sec 15:00-30:00
Percent Non-Volatile 72.0-76.0
* Gel time and reactivity will vary due to the type and concentration of initiator (peroxide), shop temperature, and humidity.
With proper surface preparation this product offers superior adhesion to cured FRP parts. It is not recommended to
solvent-wash the bonded surfaces before application. End users should determine the suitability of this product to their
process. There can be issues with achieving a good bond to highly cured gel coat and gel coated parts. In cases
where the gel coat is over a month old, has been post-cured, or could otherwise be highly cured, the user should test
for adequate adhesion and may need to sand and clean the part before applying the adhesive material.
Application: PA-133-PMMN may be used for general bonding and to fill cracks, corners, and angles where
reinforcement is required. Surfaces to be bonded should be free of dust, waxes, oils, and mold release agents.
Sanding may be used to enhance adhesion as long as dust is completely removed. Cleaning surfaces with solvent is
not recommended.
Storage and Handling: PA-133-PMMN should be properly stored in closed, opaque containers at temperatures not
exceeding 77 F (25 C). Store only in original containers. To avoid decomposition keep away from direct sunlight and
excess heat. Refer to the Safety Data Sheet for further details on safety and storage.
.
PA-133-PMMN
COR-Grip Reinforced Adhesive
Technical Data Sheet
by | Sep 27, 2025
Urethane Acrylate Adhesives
by Scott Bader
PEVE Bonding Pastes
PEVE Bonding Pastes
Primerless MMA Adhesives
Bonding Pastes
Bonding Pastes
M1-20
Product Overview
Crestabond M1-20 is a toughened, two component 10:1 acrylic adhesive designed for bonding composites,
thermoplastics and metals. This new generation of structural methacrylate adhesive meets the bonding
requirements of most assembly operations. Demonstrating excellent impact, peel, shear, compressive strength
and fatigue resistance properties across all bonded parts.
Features and Benefits
Primerless application
Excellent adhesion to dissimilar substrates
Fast setting and curing
Non-sag
High strength, modulus and toughness
Excellent environmental resistance
No need for extra materials or processes
Affords greater flexibility in design
Speeds up assembly process
Application on vertical surfaces
Designed for demanding structural applications
Designed for demanding environmental applications
Application Properties
Working Time
1
16 22 Minutes
Fixture Time
2
25 35 Minutes
Gap Filling 1 25 mm (0.04-1.0 inch)
Mixed Colour Grey/Black
Recommended Application
Temperature
18 – 25 C (64 – 77
o
F)
Crestabond
M1-20 TDS | Page 1 of 3 | Version: February 2020 www.scottbader.com
Tensile Strength
3
16 – 20 MPa (2.3 – 2.9 ksi)
Tensile Modulus
3
600 – 1000 MPa
(870 – 1450 ksi)
Tensile Elongation
3
80 – 100%
Aluminium Lap shear
4
17 – 21 MPa (2.4 – 3.0 ksi)
Recommended Operating
Temperature
5
-40 – 100 C (-40 – 212
o
F)
Mechanical Properties
Product M1-20 Adhesive Activator 1
Viscosity
6 100,000 – 140,000 cP
*
300-800 & 750-2000 dPa.s
**
80,000 – 120,000 cP*
100-300, 300-1000 dPa.s**
Specific Gravity 0.96 – 1.02 g/cc 1.05 – 1.15 g/cc
Mix Ratio (by volume) 10 1
Mix Ratio (by weight) 9 1
Colour Off white Black
Shelf Life
7
12 months 12 months
Liquid Properties
Technical Data Sheet
Crestabond
M1-20 TDS | Page 2 of 3 | Version: February 2020 www.scottbader.com
Substrates
Plastics
Acrylic
10
21 – 25 MPa
PVC
8
16 – 20 MPa
ABS
8
13 – 17 MPa
Other: Urethanes and common
engineering thermoplastics
Low Surface Energy
Plastics
e.g. PP, PE & PTFE
(use Crestabond PP-04)
Metals
Stainless
9
13 – 17 MPa
CRS
9
13 – 17 MPa
Aluminium
10
17 – 21 MPa
Other: Powder Coated Metals,
Carbon Steel
Zinc/ Galvanised Coated
Metals,
Copper
Composites
GRP/FRP
8
8 – 12 MPa
Carbon Fibre/ Polyester
DCPD Modified Vinyl Esters
Epoxy
11
Gelcoats
12
–
Non – Recommended
Substrates
Recommended Substrates
(Lapshear Strength MPa
4
)
Please contact Scott Bader technical services for information and advice on other substrates
Surface Preparation
The surface to be bonded can affect the strength and durability of the bond joint. Appropriate treatment may be
required to ensure that there are no traces of oil, grease, dirt or release agents through the use of a degreasing
agent, for instance acetone or another degreasing agent on the joint surfaces.
Mechanically abrading or chemically etching degreased surfaces can make bond joints more durable and
stronger. If abrading, a second treatment of degreasing is highly recommended.
Do not use petrol (gasoline), low grade alcohol or paint thinners.
i) Metals
Typically, the surface should be clean and dry by using an alcohol/solvent wipe and allowing the solvent to
evaporate before application. Certain metals, such as carbon steel may also require mechanical abrasion and a
subsequent alcohol solvent wipe prior to bonding.
ii) Thermoplastics
The surface must be clean, dust-free and dry. A suitable solvent such as iso-propanol can be used to degrease.
iii) Composites
The surface must be clean, dust-free and dry. This can be achieved by the use of proprietary strippable cloths
such as peel-ply (without lubricant contaminates). The laminate should be fully cured prior to bonding and
if the laminate surfaces are more than 3 days old, it is recommended that the surface must be cleaned with a
suitable solvent or cleaner with a lint-free, clean cloth prior to bonding.
Surface preparation, such as mechanical abrasion, is likely to be needed on gel coat surfaces and moulded
surfaces where release agents are likely to be present. When bonding epoxy laminates please test bond strength
prior to application.
Crestabond
M1-20 TDS | Page 3 of 3 | Version: February 2020 www.scottbader.com
Application
Prior to bonding, ensure the substrate surface is clean by following the surface preparation instructions provided.
Bulk dispensing equipment should be in good operating condition. Dispense the adhesive at a slow rate initially onto a
non-bonding surface until the mixed bead colour is uniform. Check the dispensed bead for cure quality before beginning
the bonding process.
Dispense enough adhesive to fill the bond gap before parts are mated. Avoid dry bonds by using adequate pressure to
mate parts and clamp properly to prevent joint movement. The working time is the approximate time after mixing that the
adhesive is still usable. The bonding process must be completed before the working time of the mixed adhesive expires.
The viscosities of both adhesive and activator are affected by temperature. The adhesive, activator and parts to be bonded
should be allowed to attain workshop temperature of between 18 C and 25 C (64
o
F and 77
o
F) prior to bonding. The
operating temperature should be maintained during the bonding process and until the adhesive is sufficiently cured to allow
movement of the assembly. Typically, such movement may be possible after the fixture time of the adhesive is achieved.
Ambient temperature, bondline thickness and the substrate materials being bonded can all affect the fixture time.
For industrial/commercial use only. Not to be used in household applications. The user must determine the suitability of
a selected adhesive for a given substrate and application. Contact your local Scott Bader representative for questions or
assistance with the selection of adhesives for your use. This product is intended for use by skilled individuals at their own
risk. Recommendations contained herein are based on information we believe to be reliable.
2020 ScottBader Co Ltd, February 2020
Scott Bader UK
Wollaston, Wellingborough, Northants
NN29 7RL, UK
Tel: +44 (0)1933 666738
Email: enquiries@scottbader.com
All information on this data sheet is based on laboratory testing and is not intended for design purposes. Scott Bader makes no representations or warranties of any kind concerning this
data. Due to variance of storage, handling and application of these materials, Scott Bader cannot accept liability for results obtained. The manufacture of materials is the subject of granted
patents and patent applications; freedom to operate patented processes is not implied by this publication.
Storage and Shelf Life
Crestabond products should be stored in their original container out of direct sunlight. The bulk product or cartridge
material should be opened only immediately prior to use. The expiry date is indicated on the product labels.
The shelf life is defined from date of manufacture when stored at a recommended temperature between 2 C and 23 C (36
o
F
and 73
o
F). It is highly recommended that products should never be frozen. Exposure to temperatures above 23 C (36
o
F) will
reduce the shelf life of these materials. Exposure above 35 C (95
o
F) of activators, including the cartridges, should be avoided
as the reactivity of the product is quickly diminished.
Packaging
Crestabond M1-20 is supplied in 18Kg (40 lb) plastic pails, 180Kg (397 lb) drums, pre-packed 400ml co-axial and 50ml side by
side cartridges.
Health and Safety
See separate Material Safety Data Sheet.
Urethane Acrylate Adhesives
by Scott Bader
PEVE Bonding Pastes
PEVE Bonding Pastes
Primerless MMA Adhesives
Bonding Pastes
Bonding Pastes
1. Working time measured with 10g mass of
adhesive with 10:1 mix ratio by volume at 24 C (75
o
F).
2. Fixture time defined using an ISO 4587 lap shear sample, 0.26mm bondline
thickness with 23 C (73
o
F) ambient temperature achieving >1.4MPa.
3. Tested to ASTM D638.
4. Metals tested according to ISO 4587, Thermoplastics according to ASTM 2564
and GRP according ASTM 5868.
5. Maximum temperature where an ISO 4587 lap shear sample, 0.26mm
bondline thickness achieves >3MPa.
6. Viscosity measured using a Brookfield Viscometer at 24 C (75
o
F)*
Viscosity measured using HAKKE RV1 Rheometer at 25
o
C (77
o
F)**
7. Shelf life defined from date of manufacture when stored as
recommended.
8. Substrate failure when tested.
9. Adhesive failure when tested. 10. Cohesive failure when tested.
11. Surface preparation of epoxy laminates may be necessary and testing
should be performed to ensure sufficient bond strength is achieved.
12. Surface preparation is likely to be needed on gelcoat surfaces to
ensure no release agents are present.
