by | Sep 27, 2025
ESG-215 SERIES
PRODUCT BULLETIN
EPOXY PATCHING
PASTE
GRAPHITE FILLED
HIGH TEMPERATURE
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ESG-215 GRAPHITE FILLED HIGH TEMPERATURE EPOXY PATCHING PASTE was developed to meet the requirement of the aircraft
and aerospace industry for use in repairing surface defects on composite molds and for making minor engineering changes. ESG-215 resin
is available with 2 hardener options: ESG-215 hardener is a lower viscosity hardener for filling minor surface defects; ESG-215-T is a thicker
hardener for filling large repairs requiring greater sag resistance.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
ESG-215 Hardener ESG-215-T Hardener
Mix Ratio (parts by weight) …………………………………………………….100R/14H ………………………………………………….100R/14.7H
Density (mixed) …………………………………………………………………….11 lbs/gallon ………………………………………………10.4 lbs/gallon
Mixed Specific Gravity …………………………………………………………..1.32 g/cc……………………………………………………1.25 g/cc
Resin Viscosity……………………………………………………………………..9,000,000cps……………………………………………..9,000,000cps
Hardener Viscosity………………………………………………………………..20cps………………………………………………………..100,000cps
Mixed Viscosity …………………………………………………………………….thixotropic paste …………………………………………thixotropic paste
Work Life ……………………………………………………………………………..35-50 minutes ……………………………………………35-50 minutes
Cure-To-Sanding-Time ………………………………………………………….2-4 hours …………………………………………………..2-4 hours
NOTE: See optional accelerated cure information on page 2.
Resin Color ………………………………………………………………………….Black…………………………………………………………Black
Hardener Color …………………………………………………………………….Amber……………………………………………………….Amber
Mixed Color ………………………………………………………………………….Black…………………………………………………………Black
Shelf Life ESG-215 Resin (in original unopened containers)…………………………………………………………………………1 year
Shelf Life ESG-215 and ESG-215-T Hardener (in original unopened containers)……………………………………………2 years
TYPICAL PHYSICAL PROPERTIES (Following oven cure at 350 F (177 C))
Ultimate Tensile Strength (ASTM D-638.91)…………………………….6,276psi (43MPa)……………………………………….7,101psi (49MPa)
Tensile Modulus (ASTM D-638.91) …………………………………………989,600psi (6,823MPa) ………………………………803,400psi (5,540MPa)
Tensile Elongation (ASTM D-638.91)………………………………………0.88% ……………………………………………………….0.91%
Ultimate Compressive Strength (ASTM D-695.91) ……………………14,420psi (99MPa)……………………………………..21,700psi (150MPa)
Compressive Modulus (ASTM D-695.91) ………………………………..250,800psi (1,729MPa) ………………………………241,600psi (1,666MPa)
Ultimate Flexural Strength (ASTM D-790.92) …………………………..11,500psi (79MPa)……………………………………..8,416psi (58MPa)
Flexural Modulus (ASTM D-790.92)………………………………………..667,400psi (4,602MPa) ………………………………428,400psi (2,954MPa)
Coefficient of Thermal Expansion (ppm/ F ( C))……………………….15.8 (28.5)…………………………………………………13.9 (25)
Heat Deflection Temperature @ 66 psi (ASTM D-648.82) …………268 F (131 C) ……………………………………………371 F (188 C)
Heat Deflection Temperature @ 264 psi (ASTM D-648.82) ……….249 F (121 C) ……………………………………………385 F (196 C)
Notched Izod Impact Strength (ASTM D-256.93A) ……………………4.01 in-lb/ft…………………………………………………n/a
Moisture Absorption (ASTM D-570.88) ……………………………………0.142% ……………………………………………………..n/a
Hardness……………………………………………………………………………..90 Shore D ………………………………………………..90 Shore D
Shrinkage …………………………………………………………………………….0.005 in/in………………………………………………….0.003 in/in
CONTINUED
Page 2 of 2
ESG-215
POST CURE SCHEDULE
8 hours @ 77 F (25 C)
+3 hours @ 350 F (177 C)
OPTIONAL ACCELERATED CURE
Product Technical Bulletin Cont.
ESG-215 can be cured to a sandable condition by directing a localized heat source, such as a heat gun, heat lamp or infrared heater at the
repaired area until material has hardened. A complete cure of ESG-215-T can then be achieved during the high temperature use of the
mold.
HEATING AND COOLING RATES DURING POST CURE
Always allow tools made with ADTECH High Temperature systems to gel at room temperature before subjecting them to post cure (24
hours is usually sufficient). This will prevent excessive exotherm and shrink stress from occurring.
When oven curing laminated molds, always place the mold in a room temperature oven. Increase oven temperature at a rate of no more
than 50 F (30 C) per hour. When heat cure is completed, turn off oven and allow molds to remain in the oven. Never remove mold from
oven until mold temperature has been lowered to less than100 F (38 C).
SPECIFICATIONS
Boeing MMS-101 and M41-03-01 Code HPAP
ESG-215 Series/Revised 12/18/19
Supersedes 1/12/15
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
by | Sep 27, 2025
Continued on next page
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
SP-707 is a thixotropic, aluminum filled, high temperature epoxy surface coat which gives excellent surface duplication while
maintaining non-sag qualities. SP-707 mixes easily and applies smoothly with a brush. SP-707 can be used for high temperature
tooling applications up to 300 F (149 C). Use SP-707 surface coat with EC-433 / EC-439 / EC-440 casting systems or EL-336 / EL-337
laminating systems. Typical applications include: Vacuum Form Molds, RIM Molds, High-Temp Bonding Fixtures, Autoclave
Molds, Plastic Injection Molding Prototypes, High Temperature Holding Fixtures, RTM Molds, Cold Press Molds and Drape
Form Molds.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ……………………………………………………………………………………………………………….. 100R/15H
Work Life (230 gram mass) ………………………………………………………………………………………………………………. 23 minutes
Mixed Viscosity ……………………………………………………………………………………………………………………………….. 12,400 cps
Yield Per Pound @ 0.030 /1mm ………………………………………………………………………………………………………… 4.6 sq/ft
Specific Gravity ………………………………………………………………………………………………………………………………. 1.39 g/cc
Cure-To-Demold (also reference laminating or casting system used) ……………………………………………………… 8-16 hours
Complete Cure …………………………………………………………………………….. refer to recommended oven cure schedule on page 2
Resin Color …………………………………………………………………………………………………………………………………….. Gray
Hardener Color ……………………………………………………………………………………………………………………………….. Amber
Mixed Color ……………………………………………………………………………………………………………………………………. Aluminum Gray
Shelf Life of Resin and Hardener (in original unopened containers) ……………………………………………………….. 2 years
TYPICAL PHYSICAL PROPERTIES (Cast Bar)
Tensile Strength ……………………………………………………………………………………………………………………………… 11,640psi (80MPa)
Tensile Elongation …………………………………………………………………………………………………………………………… 5%
Flexural Strength …………………………………………………………………………………………………………………………….. 19,560psi (135MPa)
Flexural Modulus …………………………………………………………………………………………………………………………….. 509,000psi (3,509MPa)
Compressive Strength ……………………………………………………………………………………………………………………… 15,290psi (105MPa)
Izod Impact Strength ……………………………………………………………………………………………………………………….. 5.8 (ft-lb)/ft
Hardness ……………………………………………………………………………………………………………………………………….. 90 Shore D
Heat Deflection Temperature @ 264 psi …………………………………………………………………………………………….. 220 F (104 C)
Heat Deflection Temperature @ 66 psi ………………………………………………………………………………………………. 229 F (110 C)
SP-707
HIGH TEMPERATURE
EPOXY SURFACE COAT
ALUMINUM FILLED
Page 2 of 2
SP-707 Tech PRODUCT BULLETIN CONT.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
POST CURE SCHEDULE
6 24 hours @ 77 F (25 C)
+2 hours @ 150 F (66 C)
+2 hours @ 200 F (93 C)
+2 hours @ 250 F (121 C)
+2 hours @ 300 F (149 C)
NOTE: The post cure schedule of the high-temp tooling epoxy laminate or casting system used with your surface coat would have
precedence over that of the surface coat. However, to attain suitable high temperature resistance and chemical resistance, the surface
coat is recommended to be post cured to a minimum of 200 F (93 C).
HEATING AND COOLING RATES DURING POST CURE
When oven curing laminated molds always place the mold in a room temperature oven, increasing the temperature at a rate of no more
than 50 F (30 C) per hour. When cooling, allow molds to remain in the heated oven, decreasing the temperature at a rate of no more than
50 F (30 C) per hour. Never remove the mold from the oven until temperature has been lowered to less than 100 F (38 C).
Once a mold has been heat cured and conditioned, and during the production curing cycles of composite parts or thermoplastic parts, you
can revert to the heating/cooling rates prescribed for the production resin or thermoplastic being processed.
SP-707 Tech/Revised 1/28/15
Supersedes 6/13/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
Continued on next page
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
SP-707 is a thixotropic, aluminum filled, high temperature epoxy surface coat which gives excellent surface duplication while
maintaining non-sag qualities. SP-707 mixes easily and applies smoothly with a brush. SP-707 can be used for high temperature
tooling applications up to 300 F (149 C). Use SP-707 surface coat with EC-433 / EC-439 / EC-440 casting systems or EL-336 / EL-337
laminating systems. Typical applications include: Vacuum Form Molds, RIM Molds, High-Temp Bonding Fixtures, Autoclave
Molds, Plastic Injection Molding Prototypes, High Temperature Holding Fixtures, RTM Molds, Cold Press Molds and Drape
Form Molds.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ……………………………………………………………………………………………………………….. 100R/15H
Work Life (230 gram mass) ………………………………………………………………………………………………………………. 23 minutes
Mixed Viscosity ……………………………………………………………………………………………………………………………….. 12,400 cps
Yield Per Pound @ 0.030 /1mm ………………………………………………………………………………………………………… 4.6 sq/ft
Specific Gravity ………………………………………………………………………………………………………………………………. 1.39 g/cc
Cure-To-Demold (also reference laminating or casting system used) ……………………………………………………… 8-16 hours
Complete Cure …………………………………………………………………………….. refer to recommended oven cure schedule on page 2
Resin Color …………………………………………………………………………………………………………………………………….. Gray
Hardener Color ……………………………………………………………………………………………………………………………….. Amber
Mixed Color ……………………………………………………………………………………………………………………………………. Aluminum Gray
Shelf Life of Resin and Hardener (in original unopened containers) ……………………………………………………….. 2 years
TYPICAL PHYSICAL PROPERTIES (Cast Bar)
Tensile Strength ……………………………………………………………………………………………………………………………… 11,640psi (80MPa)
Tensile Elongation …………………………………………………………………………………………………………………………… 5%
Flexural Strength …………………………………………………………………………………………………………………………….. 19,560psi (135MPa)
Flexural Modulus …………………………………………………………………………………………………………………………….. 509,000psi (3,509MPa)
Compressive Strength ……………………………………………………………………………………………………………………… 15,290psi (105MPa)
Izod Impact Strength ……………………………………………………………………………………………………………………….. 5.8 (ft-lb)/ft
Hardness ……………………………………………………………………………………………………………………………………….. 90 Shore D
Heat Deflection Temperature @ 264 psi …………………………………………………………………………………………….. 220 F (104 C)
Heat Deflection Temperature @ 66 psi ………………………………………………………………………………………………. 229 F (110 C)
SP-707
HIGH TEMPERATURE
EPOXY SURFACE COAT
ALUMINUM FILLED
Page 2 of 2
SP-707 Tech PRODUCT BULLETIN CONT.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
POST CURE SCHEDULE
6 24 hours @ 77 F (25 C)
+2 hours @ 150 F (66 C)
+2 hours @ 200 F (93 C)
+2 hours @ 250 F (121 C)
+2 hours @ 300 F (149 C)
NOTE: The post cure schedule of the high-temp tooling epoxy laminate or casting system used with your surface coat would have
precedence over that of the surface coat. However, to attain suitable high temperature resistance and chemical resistance, the surface
coat is recommended to be post cured to a minimum of 200 F (93 C).
HEATING AND COOLING RATES DURING POST CURE
When oven curing laminated molds always place the mold in a room temperature oven, increasing the temperature at a rate of no more
than 50 F (30 C) per hour. When cooling, allow molds to remain in the heated oven, decreasing the temperature at a rate of no more than
50 F (30 C) per hour. Never remove the mold from the oven until temperature has been lowered to less than 100 F (38 C).
Once a mold has been heat cured and conditioned, and during the production curing cycles of composite parts or thermoplastic parts, you
can revert to the heating/cooling rates prescribed for the production resin or thermoplastic being processed.
SP-707 Tech/Revised 1/28/15
Supersedes 6/13/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
Continued next page
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ES-221 is a hydrophobic epoxy system (cures in the presence of water) engineered primarily for use as a high temperature surface coat for
plastic faced plasters or high temperature molds requiring a high-gloss surface. Available in white resin for easy viewing of scribe lines on
PFP masters or black resin for RTM or contact molding applications requiring a high-gloss finish. The versatility of this room temperature
cure, 300 F (149 C) high temperature capable system (see post cure schedule), provides the engineer with a wide range of applications.
Popular handling properties producing accurate, detailed, chip resistant surface coat duplications in epoxy laminate or cast tool fabrication.
Typical applications include: Plastic Faced Plasters, Vacuum Molds, Checking Fixtures, Duplication Molds, Spotting Racks,
Bonding Fixtures and RTM Molds.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ……………………………………………………………………………………………………………………….100R/13H
Work Life (226 gram mass) ………………………………………………………………………………………………………………………22 minutes
Mixed Viscosity ……………………………………………………………………………………………………………………………………….16,800 cps
Mixed Volumetric Density …………………………………………………………………………………………………………………………12.4 lbs/gallon
Specific Gravity ……………………………………………………………………………………………………………………………………….1.49 g/cc
Cure-To-Demold ……………………………………………………………………………………………………………………………………..8-16 hours
Complete Cure …………………………………………………………………………………..refer to recommended oven cure schedule on page 2
Resin Color …………………………………………………………………………………………………………………………………………….White or Black
Hardener Color ……………………………………………………………………………………………………………………………………….Amber
Mixed Color …………………………………………………………………………………………………………………………………………….White or Black
Shelf Life ES-221 Resin (in original unopened container) …………………………………………………………………………….2 years
Shelf Life ES-221 Hardener (in original unopened container) ……………………………………………………………………….2 years
TYPICAL PHYSICAL PROPERTIES (Cast Bar)
Tensile Strength ………………………………………………………………………………………………………………………………………7,591psi (52MPa)
Tensile Elongation …………………………………………………………………………………………………………………………………..1%
Flexural Strength ……………………………………………………………………………………………………………………………………..13,998psi (97MPa)
Flexural Modulus ……………………………………………………………………………………………………………………………………..740,800psi (5,108MPa)
Compressive Strength ……………………………………………………………………………………………………………………………..17,120psi (118MPa)
Izod Impact Strength ………………………………………………………………………………………………………………………………..5.8 (ft-lb)/ft
Hardness ………………………………………………………………………………………………………………………………………………..90 Shore D
Heat Deflection Temperature @ 264 psi …………………………………………………………………………………………………….225 F (107 C)
Heat Deflection Temperature @ 66 psi ………………………………………………………………………………………………………230 F (110 C)
ES-221
HIGH TEMPERATURE
EPOXY
SURFACE COAT
FOR PLASTIC FACED
PLASTER APPLICATIONS
Page 2 of 2
TDS – ES-221.docx
PRODUCT DATA BULLETIN CONT.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
APPLICATION GUIDE
Proper Preparation Of Model Or Pattern Surface
Note: A porous surface needs to be completely sealed before a mold release is applied. Whichever sealer you choose to use you
should refer to sealer instructions regarding number of coat applications and dry-to-cure-times before applying mold release.
Note: A non-porous surface should be thoroughly cleaned before applying mold release. Refer to application instructions of mold
release.
Once your model or pattern are properly released, catalyze ES-221 surface coat and brush on a 0.030″ to 0.040″ coating, taking care not to
entrap air or puddle resin in corners or at the bottom of steep details.
When surface coat reaches “tack-stage (resin will not stick to your finger when touched but soft and sticky enough to leave fingerprint)
immediately brush on a second layer of catalyzed ES-221 surface coat to a thickness of .030″ to .040”, followed by the pouring of plaster
onto wet surface coat, filling cavity.
NOTE: Prior to pouring of plaster, some fabricators prefer to sprinkle or broadcast sisal fibers on to 2
nd
wet surface coat to secure a
mechanical bonding feature.
POST CURE SCHEDULE
16 24 hours @ 77 F (25 C)
+2 hours @ 150 F (66 C)
+2 hours @ 200 F (93 C)
+2 hours @ 250 F (121 C)
+2 hours @ 300 F (149 C)
NOTE: The post cure schedule pertaining to the high-temp epoxy laminate, casting system or plaster used with your tooling surface
coat would have precedence over that of the surface coat. However, to attain suitable temperature resistance and chemical resistance,
the surface coat is recommended to be post cured to a minimum temperature of 200 F (93 C).
ES-221 Tech/Revised 1/13/15
Supersedes 5/19/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
Continued next page
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ES-221 is a hydrophobic epoxy system (cures in the presence of water) engineered primarily for use as a high temperature surface coat for
plastic faced plasters or high temperature molds requiring a high-gloss surface. Available in white resin for easy viewing of scribe lines on
PFP masters or black resin for RTM or contact molding applications requiring a high-gloss finish. The versatility of this room temperature
cure, 300 F (149 C) high temperature capable system (see post cure schedule), provides the engineer with a wide range of applications.
Popular handling properties producing accurate, detailed, chip resistant surface coat duplications in epoxy laminate or cast tool fabrication.
Typical applications include: Plastic Faced Plasters, Vacuum Molds, Checking Fixtures, Duplication Molds, Spotting Racks,
Bonding Fixtures and RTM Molds.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ……………………………………………………………………………………………………………………….100R/13H
Work Life (226 gram mass) ………………………………………………………………………………………………………………………22 minutes
Mixed Viscosity ……………………………………………………………………………………………………………………………………….16,800 cps
Mixed Volumetric Density …………………………………………………………………………………………………………………………12.4 lbs/gallon
Specific Gravity ……………………………………………………………………………………………………………………………………….1.49 g/cc
Cure-To-Demold ……………………………………………………………………………………………………………………………………..8-16 hours
Complete Cure …………………………………………………………………………………..refer to recommended oven cure schedule on page 2
Resin Color …………………………………………………………………………………………………………………………………………….White or Black
Hardener Color ……………………………………………………………………………………………………………………………………….Amber
Mixed Color …………………………………………………………………………………………………………………………………………….White or Black
Shelf Life ES-221 Resin (in original unopened container) …………………………………………………………………………….2 years
Shelf Life ES-221 Hardener (in original unopened container) ……………………………………………………………………….2 years
TYPICAL PHYSICAL PROPERTIES (Cast Bar)
Tensile Strength ………………………………………………………………………………………………………………………………………7,591psi (52MPa)
Tensile Elongation …………………………………………………………………………………………………………………………………..1%
Flexural Strength ……………………………………………………………………………………………………………………………………..13,998psi (97MPa)
Flexural Modulus ……………………………………………………………………………………………………………………………………..740,800psi (5,108MPa)
Compressive Strength ……………………………………………………………………………………………………………………………..17,120psi (118MPa)
Izod Impact Strength ………………………………………………………………………………………………………………………………..5.8 (ft-lb)/ft
Hardness ………………………………………………………………………………………………………………………………………………..90 Shore D
Heat Deflection Temperature @ 264 psi …………………………………………………………………………………………………….225 F (107 C)
Heat Deflection Temperature @ 66 psi ………………………………………………………………………………………………………230 F (110 C)
ES-221
HIGH TEMPERATURE
EPOXY
SURFACE COAT
FOR PLASTIC FACED
PLASTER APPLICATIONS
Page 2 of 2
TDS – ES-221.docx
PRODUCT DATA BULLETIN CONT.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
APPLICATION GUIDE
Proper Preparation Of Model Or Pattern Surface
Note: A porous surface needs to be completely sealed before a mold release is applied. Whichever sealer you choose to use you
should refer to sealer instructions regarding number of coat applications and dry-to-cure-times before applying mold release.
Note: A non-porous surface should be thoroughly cleaned before applying mold release. Refer to application instructions of mold
release.
Once your model or pattern are properly released, catalyze ES-221 surface coat and brush on a 0.030″ to 0.040″ coating, taking care not to
entrap air or puddle resin in corners or at the bottom of steep details.
When surface coat reaches “tack-stage (resin will not stick to your finger when touched but soft and sticky enough to leave fingerprint)
immediately brush on a second layer of catalyzed ES-221 surface coat to a thickness of .030″ to .040”, followed by the pouring of plaster
onto wet surface coat, filling cavity.
NOTE: Prior to pouring of plaster, some fabricators prefer to sprinkle or broadcast sisal fibers on to 2
nd
wet surface coat to secure a
mechanical bonding feature.
POST CURE SCHEDULE
16 24 hours @ 77 F (25 C)
+2 hours @ 150 F (66 C)
+2 hours @ 200 F (93 C)
+2 hours @ 250 F (121 C)
+2 hours @ 300 F (149 C)
NOTE: The post cure schedule pertaining to the high-temp epoxy laminate, casting system or plaster used with your tooling surface
coat would have precedence over that of the surface coat. However, to attain suitable temperature resistance and chemical resistance,
the surface coat is recommended to be post cured to a minimum temperature of 200 F (93 C).
ES-221 Tech/Revised 1/13/15
Supersedes 5/19/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
Continued next page
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ES-221 is a hydrophobic epoxy system (cures in the presence of water) engineered primarily for use as a high temperature surface coat for
plastic faced plasters or high temperature molds requiring a high-gloss surface. Available in white resin for easy viewing of scribe lines on
PFP masters or black resin for RTM or contact molding applications requiring a high-gloss finish. The versatility of this room temperature
cure, 300 F (149 C) high temperature capable system (see post cure schedule), provides the engineer with a wide range of applications.
Popular handling properties producing accurate, detailed, chip resistant surface coat duplications in epoxy laminate or cast tool fabrication.
Typical applications include: Plastic Faced Plasters, Vacuum Molds, Checking Fixtures, Duplication Molds, Spotting Racks,
Bonding Fixtures and RTM Molds.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ……………………………………………………………………………………………………………………….100R/13H
Work Life (226 gram mass) ………………………………………………………………………………………………………………………22 minutes
Mixed Viscosity ……………………………………………………………………………………………………………………………………….16,800 cps
Mixed Volumetric Density …………………………………………………………………………………………………………………………12.4 lbs/gallon
Specific Gravity ……………………………………………………………………………………………………………………………………….1.49 g/cc
Cure-To-Demold ……………………………………………………………………………………………………………………………………..8-16 hours
Complete Cure …………………………………………………………………………………..refer to recommended oven cure schedule on page 2
Resin Color …………………………………………………………………………………………………………………………………………….White or Black
Hardener Color ……………………………………………………………………………………………………………………………………….Amber
Mixed Color …………………………………………………………………………………………………………………………………………….White or Black
Shelf Life ES-221 Resin (in original unopened container) …………………………………………………………………………….2 years
Shelf Life ES-221 Hardener (in original unopened container) ……………………………………………………………………….2 years
TYPICAL PHYSICAL PROPERTIES (Cast Bar)
Tensile Strength ………………………………………………………………………………………………………………………………………7,591psi (52MPa)
Tensile Elongation …………………………………………………………………………………………………………………………………..1%
Flexural Strength ……………………………………………………………………………………………………………………………………..13,998psi (97MPa)
Flexural Modulus ……………………………………………………………………………………………………………………………………..740,800psi (5,108MPa)
Compressive Strength ……………………………………………………………………………………………………………………………..17,120psi (118MPa)
Izod Impact Strength ………………………………………………………………………………………………………………………………..5.8 (ft-lb)/ft
Hardness ………………………………………………………………………………………………………………………………………………..90 Shore D
Heat Deflection Temperature @ 264 psi …………………………………………………………………………………………………….225 F (107 C)
Heat Deflection Temperature @ 66 psi ………………………………………………………………………………………………………230 F (110 C)
ES-221
HIGH TEMPERATURE
EPOXY
SURFACE COAT
FOR PLASTIC FACED
PLASTER APPLICATIONS
Page 2 of 2
TDS – ES-221.docx
PRODUCT DATA BULLETIN CONT.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
APPLICATION GUIDE
Proper Preparation Of Model Or Pattern Surface
Note: A porous surface needs to be completely sealed before a mold release is applied. Whichever sealer you choose to use you
should refer to sealer instructions regarding number of coat applications and dry-to-cure-times before applying mold release.
Note: A non-porous surface should be thoroughly cleaned before applying mold release. Refer to application instructions of mold
release.
Once your model or pattern are properly released, catalyze ES-221 surface coat and brush on a 0.030″ to 0.040″ coating, taking care not to
entrap air or puddle resin in corners or at the bottom of steep details.
When surface coat reaches “tack-stage (resin will not stick to your finger when touched but soft and sticky enough to leave fingerprint)
immediately brush on a second layer of catalyzed ES-221 surface coat to a thickness of .030″ to .040”, followed by the pouring of plaster
onto wet surface coat, filling cavity.
NOTE: Prior to pouring of plaster, some fabricators prefer to sprinkle or broadcast sisal fibers on to 2
nd
wet surface coat to secure a
mechanical bonding feature.
POST CURE SCHEDULE
16 24 hours @ 77 F (25 C)
+2 hours @ 150 F (66 C)
+2 hours @ 200 F (93 C)
+2 hours @ 250 F (121 C)
+2 hours @ 300 F (149 C)
NOTE: The post cure schedule pertaining to the high-temp epoxy laminate, casting system or plaster used with your tooling surface
coat would have precedence over that of the surface coat. However, to attain suitable temperature resistance and chemical resistance,
the surface coat is recommended to be post cured to a minimum temperature of 200 F (93 C).
ES-221 Tech/Revised 1/13/15
Supersedes 5/19/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
by | Sep 27, 2025
Continued on next page
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ES-219 is a thixotropic, aluminum filled, high temperature epoxy surface coat which gives excellent surface duplication while
maintaining no sag qualities. ES-219 mixes easily and applies smoothly with a brush. ES-219 can be used constantly at
temperatures up to 310 F (154 C). Use ES-219 with ADTECH EL-336 or EL-337. Typical applications include: vacuum form
molds, blow molds, high temperature bonding fixtures, high temperature holding fixtures and any high temperature tooling.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ………………………………………………………………………………………………………….100R/10H
Mix Ratio (parts by volume) …………………………………………………………………………………………………………9.1R/1H
Density (mixed) ………………………………………………………………………………………………………………………….10 lbs/gallon
…………………………………………………………………………………………………………………………………………………0.043 lbs/cu in
Specific Gravity ………………………………………………………………………………………………………………………….1.20 g/cc
Resin Viscosity …………………………………………………………………………………………………………………………..200,000cps
Hardener Viscosity ……………………………………………………………………………………………………………………..750cps
Mixed Viscosity ………………………………………………………………………………………………………………………….100,000cps
Work Life …………………………………………………………………………………………………………………………………..30-40 minutes
Tack Free Time ………………………………………………………………………………………………………………………….2-3 hours
Demold Time ……………………………………………………………………………………………………………………………..16-24 hours
Resin Color ……………………………………………………………………………………………………………………………….Gray
Hardener Color ………………………………………………………………………………………………………………………….Amber
Mixed Color ……………………………………………………………………………………………………………………………….Gray
Shelf Life ES-219 Resin (in original unopened containers) ……………………………………………………………..1 year
Shelf Life ES-219 Hardener (in original unopened containers)…………………………………………………………2 years
TYPICAL PHYSICAL PROPERTIES
Ultimate Tensile Strength(ASTM D-638.91) …………………………………………………………………………………..5,000psi (35MPa)
Tensile Modulus(ASTMD-638.91) ………………………………………………………………………………………………..641,400psi (4,422MPa)
Tensile Elongation(ASTM D-638.91) …………………………………………………………………………………………….0.60%
Ultimate Compressive Strength(ASTM D-695.91) ………………………………………………………………………….27,500psi (190MPa)
Compressive Modulus(ASTM D-695.91) ………………………………………………………………………………………154,500psi (1,0652MPa)
Ultimate Flexural Strength(ASTM D-790.92) ………………………………………………………………………………….8,000psi (55MPa)
Flexural Modulus(ASTM D-790.92) ………………………………………………………………………………………………319,800psi (2,205MPa)
Coefficient of Thermal Expansion: PPM/ F ( C) …………………………………………………………………………….20.3 (36.5)
Heat Deflection Temperature @66psi(ASTM D-648.82) …………………………………………………………………236 F (113 C)
Heat Deflection Temperature @ 264psi(ASTM D-648.82) ………………………………………………………………221 F (105 C)
Notched Izod Impact Strength(ASTM D-256.93A) ………………………………………………………………………….6.87 in-lb/ft
Moisture Absorption (ASTM D-570.88) …………………………………………………………………………………………0%
Hardness …………………………………………………………………………………………………………………………………..90 – 92 Shore D
Shrink ……………………………………………………………………………………………………………………………………….0.0002 in/in
ES-219
HIGH TEMP EPOXY
SURFACE COAT
ALUMINUM FILLED
Page 2 of 2
ES-219 Tech PRODUCT BULLETIN CONT.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
POST CURE SCHEDULE
16 24 hours @ 77 F (25 C)
+2 hours @ 150 F (66 C)
+2 hours @ 200 F (93 C)
+2 hours @ 250 F (121 C)
+2 hours @ 300 F (149 C)
NOTE: The post cure schedule pertaining to the high-temp epoxy laminate, casting system or plaster used with your tooling surface
coat would have precedence over that of the surface coat. However, to attain suitable temperature resistance and chemical resistance,
the surface coat is recommended to be post cured to a minimum temperature of 200 F (93 C).
HEATING AND COOLING RATES DURING POST CURE
Always allow tools made with high-temp resin systems to gel at room temperature before subjecting them to post cure (16 to 24 hours
is usually sufficient). When oven curing, place mold in a room temperature oven, increasing temperature at a rate of 50F per hour.
When cooling, allow molds to remain in heated oven, decreasing the temperature at a rate of 50 F (30 C) per hour. Do not remove
mold from oven until temperature has been lowered to 100 F (38 C).
ES-219 Tech/Revised 1/13/15
Supersedes 6/19/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
by | Sep 27, 2025
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ES-218 is white, thixotropic, room temperature cure, sandable epoxy surface coat designed for duplication work. The popular handling
properties of ES-218 produce accurate, detailed, chip resistant surface coat duplications in epoxy laminate fabrications.
The versatility of this resin system, when used with ES-218-1 Hardener, also doubles as a chemical resistant epoxy coating used to fill
surface texture on composite parts. Typically one application applied using brush or roller is all that is required to fill in the texture or weave
in cloth fabric. NOTE: Do not topcoat directly over ES-218-1 composite coating applications. Sand ES-218-1 and use surface primer
products as recommended by topcoat manufacturer. Typical applications include: masters, models, patterns, duplicating, engineering
tooling, checking and drill fixtures and as a composite coating.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
ES-218R/ES-218H ES-218 R/ES-218-1H
Mix Ratio (parts by weight) ………………………………………………………….. 100R/14H …………………………………………..100R/16H
Mix Ratio (parts by volume) …………………………………………………………. 5.9R:1H ………………………………………………5R:1H
Work Life (228-232 gram mass) …………………………………………………… 22 minutes ………………………………………….16 minutes
Mixed Viscosity ………………………………………………………………………….. 25,000cps …………………………………………..14,500cps
Mixed Density…………………………………………………………………………….. 1.39 g/cc …………………………………………….1.28 g/cc
Cure-to-Demold Time …………………………………………………………………. 8-12 hours…………………………………………..8-12 hours
Cure-to-Sanding Time ………………………………………………………………… N/A …………………………………………………….4-6 hours
Complete Cure …………………………………………………………………………… 3-5 days ……………………………………………..3-5 days
Mixed Color ……………………………………………………………………………….. White ………………………………………………….White
Shelf Life Resin (in original unopened containers) ………………………….. 2 years ……………………………………………….2 years
Shelf Life Hardener (in original unopened containers) …………………….. 2 years ……………………………………………….2 years
TYPICAL PHYSICAL PROPERTIES (Testing conducted on cured cast bar samples)
Tensile Strength …………………………………………………………………………. 4,132psi (29MPa) ………………………………..5,973psi (41MPa)
Tensile Modulus …………………………………………………………………………. 868,900psi (5,991MPa) ………………………..1,146,000psi (7,901MPa)
Tensile Elongation ……………………………………………………………………… 0.7% …………………………………………………..0.6%
Flexural Strength ………………………………………………………………………… 7,110psi (49MPa) ………………………………..10,070psi (69MPa)
Flexural Modulus ………………………………………………………………………… 414,800psi (2,860MPa) ………………………..573,800psi (3,956MPa)
Compressive Strength ………………………………………………………………… 7,987psi (55MPa) ………………………………..13,350psi (92MPa)
Compressive Modulus ………………………………………………………………… 149,600psi (1,032MPa) ………………………..244,700psi (1,687MPa)
Izod Impact Strength …………………………………………………………………… 5.7 in-lb/ft ……………………………………………5.1 in-lb/ft
Shore Hardness …………………………………………………………………………. 83 Shore D …………………………………………84 Shore D
Heat Deflection Temperature @ 264 psi ……………………………………….. 114 F (46 C) ……………………………………….167 F (52 C)
Shrinkage ………………………………………………………………………………….. 0.002 in/in …………………………………………..0.002 in/in
Moisture Absorption (ASTM D-570.88) …………………………………………. N/A …………………………………………………….0.29%
ES-218 Series Tech/Revised 1/13/15
Supersedes 5/16/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
ES-218
EPOXY SURFACE COAT
SERIES
WHITE, SANDABLE
