ADHESIVES | Revchem Composites

23BD2400_TDS.pdf

by | Sep 27, 2025

615 S 4
th
Street, Elkhart, IN 46516-2717 Page 1 of 1
www.bigdogadhesives.com Ph: 833-BIG-DOGG (833-244-3644) September 2024

TECHNICAL DATA SHEET

1. DESCRIPTION:

BDRP 2400 is a high viscosity, rapid curing,
cyanoacrylate adhesive. It is designed to
bond a wide variety of similar and
dissimilar materials. The handling strength
in most applications is in the 15 to 20
seconds time period.

2. CHARACTERISTICS:

Color: Clear
Viscosity: 2400 cps
Specific Color: 1.07
Base: Ethyl

3. Performance Properties:

Substrate Fixture Time Bond Strength

Steel <18 seconds >2,200 PSI
Aluminum <15 seconds >1,800 PSI
Neoprene < 4 seconds > 800 PSI
ABS < 8 seconds > 900 PSI
PVC < 5 seconds > 900 PSI
Lexan < 25 seconds > 900 PSI
Phenolic < 10 seconds > 900 PSI
Note: ISO4587 is the method used.

4. Electrical Properties:

Dielectric Constant ASTM D150 Dissipation Factor
1 kHz 2.0 to 3.50/< .02 Volume Resistivity ASTM D257: 2 to 10 x 10 15 5. Factors Affecting Cure Speed: GAP: Thin bond lines result in faster cure speed. The larger bond gaps will lengthen cure speed. HUMIDITY: Cyanoacrylates cure as a function of water content. Higher humidity will cure products faster. Fixture times are normally measured at 50% relative humidity (RH). 6. Chemical/Solvent Resistance: Percent of Strength retained after aging for 500 hours: Gasoline at 75F 100% Isopropanol (IPA) at 75F 100% Ethanol (Denatured Alcohol) at 75F 100% Freon TA at 75F 100% Motor Oil at 105F 100% Lexan (polycarbonate) at 105F & 95% RH 100% 7. What Cyanoacrylates Bond: ABS NBR Acrylic Neoprene Aluminum Nitrile Rubber Bakelite Nylon Brass Phenolic Chloroprene Polycarbonate Chrome Polyester Copper Polystyrene EPDM Porcelain Fiberglass PVC Latex SBR Leather Skin Natural Rubber Steel Wood Valox 8. Directions for use and Storage: For optimum results, parts should be clean and free from any oils, contamination or loose surfaces (rust). If parts do not mate flush or closely together, you will need to use a product that has higher viscosity to compensate for the gap. Any excess adhesive can be removed with Debonder. Store in unopened containers, out of the direct sunlight, in a dry location, at room temperature (75F). Refrigeration can extend shelf life. 9. ADDITIONAL INFORMATION NOTE: Information contained herein is based on tests we believe to be reliable and accurate. It is offered in good faith for the benefit of the consumer. The Company shall not be liable for any injury, loss, or damage in the use or handling of its chemical products since conditions and use are beyond our control. In every case, we urge and recommend the user conduct tests to determine to their own satisfaction that the product is of acceptable quality and suitability for their particular purpose under their own operating conditions. Statements concerning possible use of our products are not intended as recommendations to use our products in the infringement of any patent, or for any particular purpose or application. These products are intended for industrial use only. BDRP 2400 Cyanoacrylate Adhesive

23BB70R_TDS.pdf

by | Sep 27, 2025

Core-Bond B70 is a polyester-based core bedding compound, developed for both hand-layup and vacuum-bag core installation, and
is used as a 2-part system in conjunction with a priming resin applied to the core surface. Lightweight and non-sagging, Core-Bond is
formulated to the degree of elasticity required for the core to skin interface. With a shrinkage of less than 1%, Core Bond significantly
reduces the possibility of print-through. Core-Bond is easily applied with a (6mm) V-notch trowel, and achieves a thin bond line of
approx. 1/32 -3/64 (approx 1mm). One gallon (3.78l) covers approx. 30 square feet (3m
2
). Always prime core surface with a catalyzed
resin. The Core-Bond combines with the priming resin for a thorough cure and good cohesion. The priming resin should appear between
the blocks of contoured foam, or in the bleeder holes of plain foam, for a visual inspection of a good bond. Core-Bond is catalyzed with
a green BPO paste catalyst supplied by ATC. Other Core-Bond types: Core-Bond B73 used with BPO for gun application, B71/75 are
sprayable versions using MEKP, (page 2). Core-Bond meets cleavage strength requirements for balsa and foam cores.
November 2013
Page 1 of 2
ATC Formulated Polymers Inc.
3228 South Service Road, # 213
Burlington, Ontario L7N 3H8
Tel: 905-681-8112; Fax: 905-681-1535
www.atc-fp.com
Plant: ATC Formulated Polymers Inc.
2400 Canadian Street, # 303
Drummondville, Quebec J2C 7W3
Tel: 819-477-1752; Fax: 819-477-8815
CORE-BOND B70

Technical Data Sheet
Color White
Density 0.68 -0.72 g/cc (5.75-6 lbs./gallon)
Compression strength 1800 psi
Deformation before rupture 9.8%
Shrinkage Less than 1%
Thixotropy Non-sagging
Capillary absorption None, non-porous surface
Water absorption Less than 1%
Viscosity 108,000 – 124,000 cps
General Properties
Installing a core material with Core-Bond is a 2-part system consisting of Core-Bond, which is catalyzed with a BPO/5 (50% benzoyl
peroxide) green paste catalyst, and a GP or ortho/DCPD laminating resin for priming the foam or balsa core, which is catalyzed with an
MEKP catalyst. The catalyzation instructions below, for a 50-55 minute gel time, are based on a 100 gram mass. For an under the core
gel time, add approx 5-10 minutes. The Core-Bond and priming resin should gel at about the same time. Verify this under shop condi-
tions using the Core-Block Test (refer to ATC Core-Bond Manual).
Core-Bond B70 Catalyzation
Green BPO Paste Catalyst. 50% – for 50-55 minute gel time in a 100 gram mass*
Polyester-based Core Adhesive for Foams and Balsa
* Allow an addtional gel time of approx 5-10 minutes in the core installation (Core-Block Test). Please adjust gel times for Core-Bond and
the Priming Resin to shop conditions using this chart as a guideline. Chart based on B70 (0.7 g/cc) and BPO/5 (1.15 g/cc)
e-mail: sales@act-fp.com
Core-Bond is a trademark of ATC Formulated Polymers Inc.

Temperature
F C
55 13
60 16
65 18
70 21
75 24
77 25
80 27
85 29
90 32
95 35
Core-Bond B70 R
(Regular Version)
Core-Bond B70 S
(Summer Version)
Core-Bond B70 W
(Winter Version)
% BPO
(by weight)
cc/Gallon
(3.78 l)
gr/Gallon
(3.78 l)
3.30
2.50
2.10
2.00
1.75
1.45
74.0
56.1
47.1
44.8
39.2
32.5
87.3
66.2
55.6
52.9
46.3
38.4
% BPO
(by weight)
cc/Gallon
(3.78 l)
gr/Gallon
(3.78 l)
% BPO
(by weight)
cc/Gallon
(3.78 l)
gr/Gallon
(3.78 l)
3.10
2.50
2.10
1.95
1.75
1.50
69.5
56.1
47.1
43.7
39.2
33.6
82.0
66.2
55.6
51.6
46.3
39.7
3.50
2.60
2.15
1.85
1.50
78.5
58.3
48.2
41.5
33.6
92.6
68.8
56.9
49.0
39.7

November 2013
Page 2 of 2
Technical Data Sheet
NOTICE: All precautionary labels and notices should be read and understood by all supervisory personnel and employees. Consult OSHA and govern-
ment regulations for additional safety and health information. Purchaser is responsible for complying with all federal, state, or local laws and regula-
tions covering the use of this product. The information contained herein is correct to the best of our knowledge. The recommendations or suggestions
contained in this bulletin are made without guarantee or representation as to results. We suggest that these recommendations and suggestions are
evaluated in the purchasers laboratory prior to use. Our responsibility for claims arising from breach of warranty, negligence, or otherwise is limited to
the purchase price of the material. All values can be revised due to on-going testing and are subject to change without notice.
ATC Formulated Polymers Inc.
3228 South Service Road, # 213
Burlington, Ontario L7N 3H8
Tel: 905-681-8112; Fax: 905-681-1535
www.atc-fp.com
Plant: ATC Formulated Polymers Inc.
2400 Canadian Street, # 303
Drummondville, Quebec J2C 7W3
Tel: 819-477-1752; Fax: 819-477-8815
e-mail: sales@act-fp.com Core-Bond is a trademark of ATC Formulated Polymers Inc.
BPO Catalyzation with the calibrated Dispenser
Priming the Core
Core Installation
Storage/Shelf Life
Please refer to the ATC Core-Bond Manual for proper installation procedure and contact an ATC representative for vacuum-bagging
recommendations specific to the core being used. For temperatures outside the listed range, consult ATC. Stir Core-Bond well with large
blade mechanical mixer before and after adding BPO cata
lyst. Also stir BPO catalyst before use.
Spreading Core-Bond with a notched Trowel
Core-Bond should be spread with a notched trowel, the ideal configuration has 1/4 (6mm) equilateral triangles. For contour-cut foams or
balsa, as additional material maybe needed to fill the kerfs that open up in a curved section. The stainless steel ATC trowels are available
through your ATC distributor.
Core-Bond B73 for Gun Application with BPO Catalysts
The pumpable version of Core-Bond B70 is Core-Bond B73, supplied in drums, to be dispensed with internal mix equipment. Dispension
guns are supplied by Magnum Venus Products, www.mvpind.com; GS Manufacturing, www.gsmfg.com; Glas-Craft, www.glascraft.com.
Core-Bond B73 uses a 40% BPO catalyst (please contact us for details about the catalyst). Please refer to Core-Bond B73 Technical
Data Sheet.
Core-Bond B71/75 sprayable Versions with MEKP Catalysts
There are two sprayable versions of Core-Bond for use with a MEKP catalyst, Core-Bond B71 (18-24 minute gel time) and Core-Bond
B75 (35-45 minute gel time). Please refer to Core-Bond B71/75 Technical Data Sheet.
For maximum shelf life, store Core-Bond and BPO catalyst in a cool, dry area, maintaining the temperature between 10 – 20 C (50-70 F).
This would also extend the gel time in warm climates as the material starts out cool when used. Avoid storing in heat or direct sunlight. If
stored in a cold area, let Core-Bond reach shop temperature. The shelf life is 12 months under recommended storage conditions. After
this time a gel time test is recommended to assure useability. Do not store BPO catalyst above 80 F.
Priming the core is a necessary step which achieves the required bond strength.The resins used are normally low styrene content (below
40%) medium to high reactivity GP/ortho resins, ortho/DCPD blends. Iso and vinylester resins may not work as well, especially in higher
temperatures, as they can force styrene or styrene vapors into foams or balsa causing bond line undercure. To check the priming resin
suitability, make a Core-Block Test as described in the ATC Core Bond Manual . ATC also supplies a designated priming resin, (which
can also be used as a core surface sealing – or hot coating resin). This is recommended when hot and humid shop condition exist. The
priming resin needs to be catalyzed for a 15 minute gel time in a 100 gram cup for the temperatures listed in the Core-Bond catalyst
chart. Please follow the MEKP catalyst levels recommended by the priming resin manufacturer. The objective is for the priming resin to
catalyze in a thin film on the core material surface at about the same time as the Core-Bond. Refer to the Technical Data Sheet for the
ATC Priming Resin.
The dispensers are calibrated with a 10-60 cc scale so that one gallon (3.78 liters) can be catalyzed at a time. The dispensers are made
from polyethylene and can be cleaned with a soft cloth or paper. DO NOT LEAVE IN ACETONE, STYRENE, MEK, OR OTHER SOL-
VENTS. Dispensers are available through your ATC distributor.
CORE-BOND
B70

23BB470_TDS.pdf

by | Sep 27, 2025

COMPATIBILITY
BB470 an be used for bonding of any of the
following tooling boards:
BP600
BP700
BP701
BP750
BP850
FEATURES & BENEFITS
BB470 provides a high-strength adhesion
and offers room temperature curing.
Colour and density matched to BP700 and BP701
Good adhesion to a wide range of materials
Good open life
High mechanical properties
Room temperature curing
BB
470
TOOLING BOARD ADHESIVE
BB470 tooling board adhesive is specifically compatible with our range of medium-density
polyurethane (PU) tooling boards, for bonding of boards.
P
ROPERTY
VALUE
COLOUR Brown
HARDNESS, SHORE D (+/- 3), ISO 868
7
0
RESIN DENSITY, G/CC (+/- 0.3) 0.76
GLASS TRANSITION TEMPERATURE (Tg) DSC
, POST CURED C (+/- 5)
HARDENER VISCOCITY, 50
C, CPS (+/- 60)
1
,600
GEL TIME, 25
O
C, 150G MASS, MINUTES (+/-
5)
THIN FILM GEL TIME, 25
O
C, HOURS
TECHNICAL PROPERTIES
7.5
MIX RATIO BY WEIGHT, RESIN : HARDNER
PACK SIZE, PART A, KG
5
PACK SIZE, PART B, KG
HARDNER DENSITY,
G/CC (+/- 0.3)
1
1.03
100
220
3 – 4
100
: 20
APPROX. COVERAGE PER PACK (SUBSTRATE DEPENDENT,
M
2
@ 1MM THICKNESS)
RESIN VISCOCITY, 50 C, CPS (+/- 300)
45

Base Materials is an expert in high-performance
syntactic materials for a wide range of industries
including automotive, aerospace, foundry,
manufacturing, marine, motorsport, rail and subsea.
Customers are at the heart of what we do. Our proven
high-quality solutions are engineered to meet your
challenging application requirements.
CONTACT US
+44 (0)116 286 5073
sales@base-materials.com
www.base-materials.com
Disclaimer
The test data and results set forth herein are based on laboratory work and do not necessarily
indicate the results that the buyer or user will attain. Base Materials Limited makes no warranty
expressed or implied, including warranties of merchantability or fitness for a particular use. Under
no circumstances will Base Materials Limited be liable for incidental, consequential or other
damages, alleged negligence, breach of warranty, strict liability or any other legal theory arising
out of the use or handling of this product.
PACK SIZES
BB470 is a two part adhesive, available in a pack
size of 5kg part A and 1kg part B.
STORAGE OF MATERIAL
The product must be stored indoors, on a flat
dry surface at a temperature between
+ 15
O
C to + 40
O
C. After use, tightly reseal.
The resin component may crystallize during
storage. If crystallized, vent container and heat
to + 55
O
C to + 65 C until crystals dissolve.
Stir well after product has liquefied.
SHELF LIFE
24 months from date of manufacture.
SUBSTRATE PREPERATION
All surfaces should be free of contamination. Any
cleaning solutions must be allowed to evaporate before
application of BB470.
USAGE
Always use clean dry tools for mixing and applying.
Mix according to the mix ratio stated above (100:20 by
weight).
Mix thoroughly and use immediately.
Material temperatures should not be below + 18 C
when mixing.

23B750RF_TDS.pdf

by | Sep 27, 2025

Core-Bond B600R, Core-Bond B650R, Core-Bond B750R – TDS 1/3

Core-Bond B600R
Core-Bond B650R
Core-Bond B750R

Core Bedding Adhesive

Product Overview
Core-Bond B600R, Core-Bond B650R and Core-Bond B750R are high quality isophthalic polyester resin based core
bonding adhesives specifically formulated for use with structural foam and balsa cores. They are catalysed with standard
MEKP catalyst. It is important to fill all the kerfs and cuts in contoured foam or balsa and have no air entrapment between
the core and the laminate. Priming the core with catalysed resin is recommended practice particularly for higher density
cores. These materials can be applied with a spray applicator or hand trowel.

Features and Benefits

Light weight Half the weight of glass and resin laminate
Smooth consistency Reduced emissions compared to glass and resin
Non sagging Long shelf life
Very low shrink Proven chemistry, long track record

Characteristics Using 1.25% by weight with MEKP Catalyst
A standard 9% active oxygen MEKP catalyst is recommended such as DDM-9, MEKP-9, etc.

Characteristics Typical Value
Working Time/Geltime
1
30 45 Minutes
Fixture Time
2
3-4 Hours
Gap Filling 0.030 inch minimum

1. Geltime measured with 100g mass of adhesive at 75
o
F
2. Time taken at 75 F (ambient temperature) to achieve 80% strength in lap-shear tests

Liquid Properties

Property B600R B650R B750R
Viscosity
3
52,000 64,000 cP 100,000-140,000 cP 116,000-130,000 cP
Specific Gravity 0.57-0.63 0.62-0.68 0.72-0.78
Shelf Life
5
12 Months 12 Months 12 Months

3. Measured using Brookfield HAF with T-C spindle at 5 rpm at 75 F,
4. Mix ratio based on volume and weight for both machine dispensing and hand mixing.
5. Shelf life is defined from date of manufacture when stored under recommended conditions.

Typical Material Properties

Property B600R B650R B750R
Hardness Shore D 60 minimum 60 minimum 60 minimum
Tensile Strength 1450 psi 1450 psi 2000 psi
Tensile Modulus 145 ksi 145 ksi 200 ksi
Tensile Strain 2% 2% 1%
Water Absorption ISO 62 0.0028 oz 0.0028 oz 0.0028 oz
Linear Shrinkage < 1.0% < 1.0% < 1.0% Core-Bond B600R, Core-Bond B650R, Core-Bond B750R - TDS 2/3 Coverage Following estimates are based on tests on typical flat laminate roughness. Add material for curvature (opening kerfs and cuts) to ensure full filling of all the voids within the sandwich laminate. Saw cut foam Core-Bond Yield for Saw Cut Structural Foams (estimate) Core Thickness 1 Adhesive Thickness 1.5 mm 2.0 mm 3.0 mm 3.5 mm Yield (rounded) 27 ft 2 /gallon 20 ft 2 /gallon 14 ft 2 /gallon 12 ft 2 /gallon Balsa or knife-cut foams Core-Bond Yield for Knife Cut Structural Foams or Balsa (estimate) Core Thickness 1 Adhesive Thickness 1.0 mm 1.5 mm 2.0 mm 2.0 mm Yield (rounded) 41 ft 2 /gallon 27 ft 2 /gallon 20 ft 2 /gallon 20 ft 2 /gallon Surface Preparation As with all adhesives, maximum performance is only achieved with adequate surface preparation. When bonding the back surface of (polyester) GRP, a simple solvent wipe with acetone is satisfactory pre-treatment to clean and degrease the surface. However, for gelcoated GRP surfaces and for other substrates, degrease using acetone or similar followed by abrasion and a final degrease is recommended. For chemical adhesion to the laminate it is important to bond within the secondary bonding window specified by the resin manufacturer. This is usually between 24 and 72 hours. Applications The triple digit series of Core-Bond are promoted to gel in 45 minutes at 75 o F with a standard MEKP catalyst. Never catalyse below 0.75% or above 2.25% by weight. Contents may settle in during storage and shipment therefore it is recommended to mix the material prior to catalyzation to ensure homogeneity. Using a notched trowel apply the correct thickness of material for your core choice and surface curvature. The higher density and viscosity Core-Bond B750R is better suited for vertical surfaces to eliminate any sagging. Core material should be primed with a catalysed resin to improve the bond. An orthophthalic based resin with low styrene is recommended such as the Priming Resin R101 from Scott Bader. Some isophthalic or vinyl ester resins are not suitable for priming PVC or SAN foams. If in doubt: test! Apply the right amount of priming resin to the core material avoiding excess. The texture of the core should remain visible. After bonding tap the surface of the core to test for any voids using a coin. A dull or hollow sound will indicate voids. Repair areas with voids before final lamination. Refer to the Core-Bond Manual for more detailed information on core bedding methods. 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. The properties and strength values obtained under controlled conditions at the Scott Bader laboratory. Storage Store between 60 and 80 F in the original, unopened container in a dry, well ventilated place. Protect from direct sunlight. Exposure to temperatures outside of these conditions will reduce shelf life. Ideally containers should be opened only immediately prior to use. Packaging Available in 5 gallon (19 litre) plastic or metal pails and 50 gallons (189 litre) drums. Health and Safety See separate Safety Data Sheet. Core-Bond B600R, Core-Bond B650R, Core-Bond B750R - TDS 3/3 Updated: November 2017 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 North America 4280 Hudson Drive, Stow, Ohio, United States, 44224 Telephone: +1 (330) 920-4410 Facsimile: +1 (330) 920-4415 www.scottbader-na.com SCOTT BADER COMPANY LIMITED Wollaston, Wellingborough, Northamptonshire, NN29 7RL Telephone: +44 (0) 1933 663100 Facsimile: +44 (0) 1933 666623 www.scottbader.com

23B73RF_TDS.pdf

by | Sep 27, 2025

CORE-BOND B73 – TDS 1/2

CORE-BOND B73
Sprayable/Pumpable Polyester-based Core
Adhesive for Foams and Balsa
Introduction
Core-Bond B73 is a polyester-based core bedding compound, developed for both hand-layup and vacuum-bag core
installation, and is used as a 2-part system in conjunction with a priming resin applied to the core surface. Lightweight
and non-sagging, Core-Bond is catalyzed with a BPO catalyst and is formulated to the degree of elasticity required for
the core to skin interface. With a shrinkage of less than 1%, Core-Bond significantly reduces the possibility of print-
through. Core-Bond B73 can be sprayed or pumped, can be spread out for a uniform thickness with a (6mm) V-notch
stainless steel trowel and achieves a thin bondline of approximately 1/32 -3/64 (approx. 1mm). One gallon (3.78 liters)
covers approx. or 30 square feet (3m2 ). Always prime core surface with a catalyzed resin. The Core-Bond combines
with the priming resin for a thorough cure and good cohesion. The priming resin should appear between the blocks
of contoured cores, or in the bleeder holes of plain core sheets for a visual inspection of a good bond. Core-Bond B70 is
used for hand application, B71/75 are sprayable versions using MEKP. (Page 2)

General Properties

Color White
Density 0.75 -0.82 g/cc (6.25-6.83 lbs./gallon)
Compression strength 1800 psi
Deformation before rupture 9.8%
Shrinkage Less than 1%
Thixotropy Non Sagging
Capillary absorption None, non-porous surface
Water absorption Less than 1%
Viscosity 112,000 – 128,000 cps

Installing a core material with Core-Bond B73 is a 2-part system consisting of Core-Bond, which is catalyzed with a
BPO/4 (40% benzoyl peroxide, such as Benox L-40LV (www.norac.com) or equal, white paste catalyst, and a GP (ortho)
laminating resin for priming the foam core, which is catalyzed with an MEKP DDM-9 (or equal) catalyst. A green pigment
can be added to the white BPO catalyst for easier identification that the catayst is well dispersed (Please contact us).
The catalyzation instructions below for a 50-55 minute are based on a 100 gram mass. For an under the core gel time,
add approx 5-10 minutes. The Core-Bond and priming resin should gel at about the same time. Verify this under shop
conditions using the Core-Block Test (refer to ATC Core-Bond Manual).

Core-Bond B73 Catalyzation Chart
(incl. Magnum Venus Slave Arm Settings, BPO 40% Catalyst, for 50-55 Minute gel time in a 100 gram mass*

Core-Bond B73 R
(Regular Version)
Core-Bond B73 S
(Summer Version)
Core-Bond B73 W
(Winter Version)
Temperature
F C
%
BPO
(weig
ht)
cc/Gl
n.
(3.78
l)
gr/Gln.
(3.78 l)
MVP
Slave
Arm
Stg.
%
BPO
(weig
ht)
cc/Gl
n.
(3.78
l)
gr/G
ln.
(3.7
8 l)
MVP
Slav
e
Arm
Stg.
%
BPO
(weigh
t)
cc/Gl
n.
(3.78
l)
gr/Gln
.
(3.78
l)
MVP
Slave
Arm
Stg.
55 13 3.90 85 102 2 1/4
60 16 3.10 69 83 1 3/4
65 18 3.90 85 102 2 1/4 2.70 59 71 1 1/2
70 21 3.25 71 85 1 3/4 2.25 49 59 1 1/4
75 24 2.70 59 71 1 1/2 3.90 85 102 2 1/4 2.00 43 43 1
80 27 2.20 48 58 1 1/4 3.10 69 83 1 3/4
85 29 1.90 41 49 1 2.70 59 71 1 1/2
90 32 2.25 49 59 1 1/4
95 35 2.00 43 52 1

* Allow an additional gel time of approx 5 – 10 minutes in the core installation (Core-Block-Test). Please adjust gel times
for Core-Bond and the priming resin to shop conditions using this chart as a guideline. Chart based on B73 (0.78 g/cc)
and BPO 40% (1.35 g/cc)

CORE-BOND B73 – TDS 2/2

Dispension Equipment
Core-Bond B73 is supplied in drums. Internal mix dispension equipment is manufactured by: Magnum Venus Products,
www.mvpind.com; GS Manufacturing, www.gsmfg.com; Glas-Craft, www.glascraft.com.

Priming the Core
Priming the core is a necessary step which achieves the required bond strength.The resins used are normally low
styrene content (below 40%) medium reactivity GP/ortho resins, ortho/DCPD blends, vinylester resins, and
vinylester/DCPD blends. Iso resins may not work as well, especially in higher temperatures, as they can force styrene
into foams or balsa causing bondline undercure. To check the priming resin suitability, make a Core-Block Test as
described in the ATC Core-Bond Manual . SB-ATC also supplies a designated priming resin, ATC Priming Resin (which
can also be used as a core surface sealing – or hot coating resin). This resin is recommended especially when hot and
humid shop condition exist. The priming resin needs to be catalyzed for a 15 minute gel time in a 100 gram cup for the
temperatures listed in the Core-Bond catalyst chart. Follow the MEKP catalyst levels recommended by the priming resin
manufacturer. The objective is for the priming resin to catalyze in a thin film on the core material surface at about the
same time as the Core-Bond. Please refer to the

Spread Core-Bond with a notched Trowel
Core-Bond should be spread with a notched trowel, the ideal configuration has 1/4 (6mm) equilateral triangles. For
contour-cut foams or balsa, as additional material may be needed to fill the kerfs that open up in a curved section. The
trowels are available through your

Core Installation
Refer to the ATC Core-Bond Manual for proper installation procedure and contact an SB-ATC representative for
vacuum-bagging recommendations specific to the core being used. For temperatures outside the listed range, consult
SB-ATC. It is not normally necessary to agitate the material in the dums before use. However, it is recommended to
occasionally stir the BPO catalyst before use.

Storage
For maximum shelf life, store Core-Bond and BPO catalyst in a cool, dry area, maintaining the temperature between 10 –
20 C (50-70 F). This would also extend the gel time in warm climates as the material starts out cool when used. Avoid
storing in heat or direct sunlight.

Shelf-Life
Core-Bond B73, following recommended storage conditions, has a 12 months shelf life. We recommend gel time tests at
all times, but after 12 months a gel time test will indicate the useability of the material.

Core-Bond B71/75 sprayable Versions with MEKP Catalysts
There are two sprayable versions of Core-Bond for use with a MEKP catalayst, Core-Bond B71 (18-24 minute gel time)
and Core-Bond B75 (35-45 minute gel time). Please refer to Core-Bond B71/75 Technical Data Sheet.

Green Catalyst Pigment
A green catalyst dye can be supplied through your SB-ATC distributor. It comes in a 85 gram/container, which is
sufficient to pigment 19 liters (5 gallons) of the white BPO paste catalyst.

NOTICE: All precautionary labels and notices should be read and understood by all supervisory personnel and
employees. Consult OSHA and government regulations for additional safety and health information. Purchaser is
responsible for complying with all federal, state, or local laws and regulations covering the use of this product. The
information contained herein is correct to the best of our knowledge. Please check our website for latest updates. The
recommendations or suggestions contained in this bulletin are made without guarantee or representation as to results.
We suggest that these recommendations and suggestions are evaluated by the purchaser s technical staff prior to use.
Our responsibility for claims arising from breach of warranty, negligence, or otherwise is limited to the purchase price of
the material. All values can be revised due to ongoing testing and are subject to change without notice.

Version 1 : February 2016

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 COMPANY LIMITED
Wollaston, Wellingborough, Northamptonshire, NN29 7RL
Telephone: +44 (0) 1933 663100
Facsimile: +44 (0) 1933 666623
www.scottbader.com

Plant: SCOTT BADER – ATC
2400 Canadian Street, # 303
Drummondville, Quebec J2C 7W3
Tel: 819-477-1752
SCOTT BADER COMPANY INC.
4280 Hudson Drive, Stow, OH 44224, 1-800-839-4765
Telephone: +1 330 920 4410

www.scottbader.com

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