by | Sep 27, 2025
PDS-TPrime130-1-6-0520 1
T-Prime 130-1
EPOXY TOOLING INFUSION SYSTEM
Thermally stable up to 130 C (266 F) when fully postcured
Resistant to thermal cycling damage
Low initial mixed viscosity for easier infusion; 247 cP at 25 C (77 F)
Long pot-life and gel time; capable of infusing large or complex moulds
Ambient curing and low shrinkage for accurate mould manufacture
INTRODUCTION
T-Prime 130-1 is an epoxy tooling system for manufacturing glass or carbon moulds from liquid infusion processes.
T-Prime 130-1 is compatible with Gurit s range of 130 C tooling gelcoat, laminating and repair systems.
T-Prime 130-1 is a low shrinkage ambient curing system, which provides a simple way to produce high accuracy
moulds. Designed for infusion and cure at ambient temperatures, it should then be mid-cured at 40 C (104 F) for 4
hours to guarantee the strength needed for demoulding. It can then be postcured off the plug to give a material that
is thermally stable to 130 C (266 F). Exceeding this temperature will cause a rapid loss in stiffness and a safety
margin is required for the maximum tool operating temperature to prevent distortion or tool damage.
T-Prime 130-1 is a further improvement on T-Prime 130 giving improved storage stability and an extended pot-life.
2 PDS-TPrime130-1-6-0520
MIX RATIO
T-Prime 130-1 should be mixed at the following mix ratio:
T-Prime 130-1 Resin T-Prime 130-1 Hardener
100:27 (by weight)
100:33.3 (by volume)
Any deviation from the prescribed mix ratio may degrade the
thermal capability and physical properties of the material. The
mix ratio of the newer T-Prime 130-1 is different to the older
version of the product, T-Prime 130.
SYSTEM INFORMATION
Component Properties
Resin Hardener
Viscosity at 20 C 918 cP 30.4 cP
Viscosity at 25 C 595 cP 25.8 cP
Viscosity at 30 C 383 cP 21.9 cP
Shelf Life (Months) 12 12
Colour (Gardner) 1 (Opaque) 0 (Clear)
Density gm/cm
3
(lb/ft
3
) 1.150 (71.8) 0.974 (60.8)
Working Properties
Mixed Density @ 20 C 1.11 gm/cm
3
(69.5 lb/ft
3
)
Initial Mixed Viscosity at 25 C 247 cP
Gel Time (150g in Water at 25 C) 5:27 (hours:minutes)
Pot Life (500g in Air at 20 C)* 3:25 (hours:minutes)
Pot Life (300g in Air at 25 C) 2:15 (hours:minutes)
Resin Gel times vs Temperature
20 C
(68 F)
25 C
(77 F)
30 C
(86 F)
40 C
(104 F)
Latest flow under vacuum (5,000P
Theoretical thin film) (hr:min)
7:00 4:20 3:40 2:23
Earliest Vacuum off time (100,000P
Theoretical thin film) (hr:min)
9:22 5:44 4:45 3:02
Demould Time Recommended 4 hours at 40 C (104 F) after system has gelled to reduced risk of laminate damage
Overcoating window on T-Gel 130-1
Slow. 20 C (68 F), 50-70% RH
1-6 days.
* Pot life in larger volumes can be reduced. Material approaching its pot life is typically 40-50 C (104 122 F) in the centre of the pot and it will then thicken as it cools
in the laminate and feed pipes. This material will have already seen higher temperature will reach a higher viscosity more quickly than the thin film data at a given
workshop temperature.
PDS-TPrime130-1-6-0520 3
isothermal @ 20 C
isothermal @ 25 C
isothermal @ 30 C
isothermal @ 40 C
Time (minutes)
Viscosity (P)
0 60120 180 360300240
0
200
400
600
800
1000
1200
T-Prime 130-1 Viscosity Isothermal CAP 2000 Cone 6, 50rpm
Time / Minutes
Temperature C
0 60 120 180 240
0
20
30
50
60
80
30 90 150 210
10
40
70
Pot Centre 20 C Test
Air 20 C Test
Pot Life 20 C
Pot Centre 25 C Test
Air 25 C Test (Actual 26 C)
Pot-Life at 25 C
20 C = 205min
25 C = 135min
T-Prime 130-1 Temperature vs Time at Centre of 500g Pot Life Test
Large volumes of T-Prime 130-1 left in bulk > 50mm deep can exotherm strongly and the excess will need to be dispensed into a
shallower vessel. Ideally this should be less than 30mm deep or the pot placed into water to cool.
4 PDS-TPrime130-1-6-0520
APPLICATION NOTES
nA good level of understanding of the infusion process is
required to achieve a high quality mould. Contact SP-High
Modulus for further advice or refer to SP-High Modulus process
notes for further information.
nAny deviation from the prescribed mix ratio may degrade the
thermal capability and physical properties of the material
nRecommended workshop temperature is between 18 C and
25 C (64 F and 77 F)
nIf drill style mixing is used, this must be on the lowest
setting to reduce the air introduced. Particular attention is
needed to mix the sides and bottom of the container
nAllowing the mixed resin to stand for 5-10 minutes before
use in order to allow air to dissipate to improve the final
laminate quality.
nFor large components pre-weigh and dispense into labelled
or coloured pots rather than pre-mix all the material to extend
pot life for large infusions. This also avoids potential exotherm
problems with large quantities of unused mixed system.
nIf large quantities are left in feed buckets and vacuum pots
at the end of the infusion it is recommended to transfer some
of the bulk material into a shallow vessel, with a large surface
area, to dissipate heat. It is recommended to always keep the
bottom of feed pipes covered in resin to avoid the risk of air
inclusion even after the feed pipes are closed / clamped.
nDepending on the infusion design it can take a large amount
of time to infuse the final 10% of a part as the flow rate slows
with distance from the final feed pipe. This is a critical time to
monitor the resin pot life and change to new resin if required.
Material close to the pot life can build in viscosity and block the
feed pipes. If the infusion is running slowly it is recommended
to allow the resin levels to lower in the feed pot and aim to
supply new resin every 2.5 hours at 20 C and 1 to 1.5 hours at
25 C if there looks like there will be a problem with filling the
final laminate.
nIf emptying a receiving bucket inside a vacuum pot
remember to allow time for the vacuum to fully build back up
inside the pot before opening the control valves to the part
otherwise any air inside the vacuum pot may be pulled back
into the part.
nIf using T-Gel 130-1 Slow allow at least 24 hours at 20 C
(68 F) before applying vacuum to begin the infusion to ensure
sufficient stiffness of T-Gel 130-1. Infusing too soon can lift the
gelcoat and cause sink marks.
CURED PROPERTIES
AMBIENT CURE
The mechanical strength after 24 hours at 20 C (68 F) is still
low and a mid cure is needed to de-mould.
If more than one infusion stage is used allow at least 2 days
at 20 C (68 F), or cure elevated temperature, before removing
peel ply and other infusion consumables. This is to remove
the risk of delamination and subsequent blisters from lifting
the part cured laminate.
If peel ply is removed before a full cure the part cured shards
of resin created can contain a significant amount of un-reacted
epoxy. Un-reacted epoxy dust is a particular skin irritant and
the appropriate personal protective equipment (PPE) should
be used.
MID CURE
A mid cure of at least 4 hours at 40 C (104 F) is
recommended before de-moulding to maximise gelcoat
adhesion and build sufficient resin strength for demould.
Ramp rate is not critical at this stage.
PDS-TPrime130-1-6-0520 5
APPROXIMATE MATERIALS COVERAGE
Approx net resin use and thickness for Gurit woven and stitched carbon and glass structural laminates infused at 100% vacuum.
Other fabrics such as Tissues and Chop Strand Mat materials use additional resin test panels may be needed to verify usage for
these material.
Structural Glass Laminates (32% Resin Content) Resin & Thickness by Fibre gsm
Fibre gsm Resin gsm Total /Kg/m
2
Thickness /mm
200 94 0.294 0.155
300 141 0.441 0.233
450 211 0.661 0.349
600 281 0.881 0.465
900 422 1.322 0.698
1200 563 1.763 0.930
Structural Glass Laminates (32% Resin Content) Fibre & Resin for Set Thickness
Fibre gsm Resin /Kg Total /Kg/m
2
Thickness /mm
7,740 3.63 11.37 6.0
12,900 6.05 18.95 10.0
Net Resin Figures – No waste allowance
POST CURE
To achieve full postcure ramp at 0.2 C /min to 120 C (8.5 hours) and dwell for 2 hours (0.36 F /min to 248 F). Faster postcure risks
thermal softening of the tool. Contact Gurit for advice when in doubt.
Cured Properties
Property Unit Mid Cure 4 Hours at 40 C (104 F)
Mid Cure + Postcure
2 hours at 120 C (248 F)
Tg2 by DSC C ( F) 53 C (127 F) 133 C (271 F)
6 PDS-TPrime130-1-6-0520
Structural Carbon Laminates (40% Resin Content) – Resin & Thickness by Fibre gsm
Fibre gsm Resin gsm Total /Kg/m
2
Thickness /mm
200 134 0.334 0.221
300 201 0.501 0.331
450 301 0.751 0.497
600 401 1.001 0.663
900 602 1.502 0.994
1200 802 2.002 1.326
Structural Carbon Laminates (40% Resin Content) Fibre & Resin for Set Thickness
Fibre gsm Resin /Kg Total /Kg/m
2
Thickness /mm
5,430 3.63 9.06 6
9,050 6.05 15.10 10
Net Resin Figures – No waste allowance
A general 10 to 15% waste value is then recommended for purchase estimation. Additional resin is also required for infusion
consumables. Resin waste in feed meshes and pipework depends on the component geometry and infusion design. As approx
guide resin allow;
nSmall Infusion (Up to 2m2) Approx 2 Kg/m
2(Generally have a higher % waste)
nLarge Infusion (20m2 and above)Approx 1 Kg/m
2
For the first components, and when new to infusion, allow extra resin for feed pots.
PDS-TPrime130-1-6-0520 7
HEALTH AND SAFETY
The T-Prime 130-1 system has been designed for use in closed
mould processes. Users should ensure that some elevated
temperature cure is applied to the component before trying to
machine it. In a component made from T-Prime 130-1, which has
seen no heat, there will only be a partial cure. Therefore the
sanding dust will be more irritating than dust from a laminate
cured at elevated temperature, in which there will be more
thorough cross linking. Particular care should also be taken
when removing peel plies from part cured material as this can
also product a dust like particle, and an elevated cure or
personal protective equipment is recommended.
The following points must be considered:
1. Skin contact must be avoided by wearing protective gloves.
Gurit recommends the use of disposable nitrile gloves for
most applications. The use of barrier creams is not
recommended, but to preserve skin condition a
moisturising cream should be used after washing.
2. Overalls or other protective clothing should be worn when
mixing, laminating or sanding. Contaminated work clothes
should be thoroughly cleaned before re-use.
3. Eye protection should be worn if there is a risk of resin,
hardener, solvent or dust entering the eyes. If this occurs
flush the eye with water for 15 minutes, holding the eyelid
open, and seek medical attention.
4. Ensure adequate ventilation in work areas. Respiratory
protection should be worn if there is insufficient ventilation.
Solvent vapours should not be inhaled as they can cause
dizziness, headaches, loss of consciousness and can have
long term health effects.
5. If the skin becomes contaminated, then the area must be
immediately cleansed. The use of resin-removing cleansers
is recommended. To finish, wash with soap and warm
water. The use of solvents on the skin to remove resins etc
must be avoided.
Washing should be part of routine practice:
nbefore eating or drinking
nbefore smoking
nbefore using the lavatory
nafter finishing work
6. The inhalation of sanding dust should be avoided and if it
settles on the skin then it should be washed off. After more
extensive sanding operations a shower/bath and hair wash
is advised.
Gurit produces a separate full Safety Data Sheet for all
hazardous products. Please ensure that you have the correct
SDS to hand for the materials you are using before
commencing work. A more detailed guide for the safe use of
Gurit resin systems is also available from Gurit, and can be
found on our website at www.gurit.com
APPLICABLE RISK & SAFETY
PHRASES
Please refer to product SDS for up to date information specific
to this product.
8 PDS-TPrime130-1-6-0520
TRANSPORT & STORAGE
The resin and hardener should be kept in securely closed containers during transport and
storage. Any accidental spillage should be soaked up with sand, sawdust, cotton waste or any
other absorbent material. The area should then be washed clean (see appropriate Safety Data
Sheet).
Adequate long term storage conditions will result in a shelf life of 12 months for both the resin
and hardener. Storage should be in a warm dry place out of direct sunlight and protected from
frost. The temperature should be between 10 C and 25 C. Containers should be firmly
closed. Hardeners, in particular, will suffer serious degradation if left exposed to air. The
materials should be stirred before use.
NOTICE
All advice, instruction or recommendation is given in good faith but the selling Gurit entity (the
Company) only warrants that advice in writing is given with reasonable skill and care. No further duty
or responsibility is accepted by the Company. All advice is given subject to the terms and conditions
of sale (the Conditions) which are available on request from the Company or may be viewed at
Gurit s Website: www.gurit.com/terms-and-conditions.aspx
The Company strongly recommends that Customers make test panels in the final process
conditions and conduct appropriate testing of any goods or materials supplied by the Company prior
to final use to ensure that they are suitable for the Customer s planned application. Such testing
should include testing under conditions as close as possible to those to which the final component
may be subjected. The Company specifically excludes any warranty of fitness for purpose of the
goods other than as set out in writing by the Company. Due to the varied nature of end-use
applications, the Company does, in particular, not warrant that the test panels in the final process
conditions and/or the final component pass any fire standards.
The Company reserves the right to change specifications and prices without notice and Customers
should satisfy themselves that information relied on by the Customer is that which is currently
published by the Company on its website. Any queries may be addressed to the Technical Services
Department.
Gurit is continuously reviewing and updating literature. Please ensure that you have the current
version by contacting your sales contact and quoting the revision number in the bottom right-hand
corner of this page.
TECHNICAL CONTACT INFORMATION
For all other enquiries such as technical queries:
Telephone + 44 1983 828000 (08:30 17:00 GMT)
Email technical.support@gurit.com
24-HOUR CHEMICAL EMERGENCY NUMBER
For advice on chemical emergencies, spillages, fires or exposures:
Europe +44 1273 289451
Americas +1 646 844 7309
APAC +65 3158 1412
Ecustomer.support@gurit.com
Wwww.gurit.com
by | Sep 27, 2025
by | Sep 27, 2025
TECHNICAL DATA SHEET
AL 2020
February 19, Version 02 /2019
1
TECHNICAL DATA SHEET
AL 2020
February 19, Version 02 /2019
1
TECHNICAL DATA SHEET
AL 2020 with AL 2021, AL 2022, or AL 2023 Hardeners
HIGH PERFORMANCE LAMINATING SYSTEM
FLAME RETARDANT, VARIABLE HARDENERS
DESCRIPTION
AL 2020 resin with AL 2021, AL 2022, or AL 2023 hardeners is a specially formulated flame-retardant
system for laminated parts. It is suitable for use with glass, carbon and aramid fabrics, and parts can be
heated immediately for faster process times.
APPLICATIONS
High performance automotive body panels used in NASCAR flame-retardancy applications
Suitable for vacuum-bagging and RTM
No need to wait for a room temperature gel, can be put directly into the oven
PROPERTIES
Low viscosity for good wet-out
R.T. and post-cured options
Three hardener choices
Non-Halogen flame retardancy
Self-extinguishing
RoHS and REACH compliant
Epoxy (non-styrene system)
Excelllent bond to all fabrics
Suitable for aramid fiber
laminates
TECHNICAL DATA SHEET
AL 2020
February 19, Version 02 /2019
2
Physical Properties Handling
Property Units AL 2020
Resin
AL 2021
Hardener
AL 2022
Hardener
AL 2023
Hardener
Composition Epoxy Amine Amine Amine
Mix Ratio, by weight 100 22 24 30
Appearance Clear Liquid Clear Liquid Clear Liquid Clear Liquid
Color Light Amber Light Amber Light Amber Light Amber
Viscosity @ 77 F (25 C)
Cps & mPa.s
Brookfiefd LVT 3,500 35 62 70
Viscosity, mixed @ 77 F
(25 C) Cps & mPa.s
Brookfiefd LVT 1,000 1,375 1,300
Density @ 77 F (25 C)
lbs./gal. (g/cc)
ASTM D 1480 9.74 (1.17) 7.99 (.96) 7.91 (.95) 7.97 (.96)
Gel time, 130g at 77 F
(25 C)
Minutes 61 222 480
Neat Cured Properties tested at 74 F (23 C)
Test Method Unit(s)
With AL 2021
Hardener
With AL 2022
Hardener
With AL 2023
Hardener
Glass Transition
Temperature (Tg)
* R.T Cure
**150 F Post-Cure
ASTM E1545
F ( C)
126 (52)
131 (55)
103 (39)
154 (68)
124 (51)
140 (60)
Glass Transition
Temperature (Tg)
(Ultimate Tg via
DSC test method)
ASTM D-3418
F ( C)
226 (108)
203 (95)
199 (93)
Hardness
* R.T Cure
**150 F Post-Cure
ASTM D-
2240
Shore D
85
87
83
87
79
87
Flexural Strength
* R.T. Cure
** 150 F Post-Cure
ASTM D790
psi (MPa)
10,128 (70)
15,500 (107)
11,303 (78)
18,800 (130)
11,390 (79)
12,500 (86)
Flexural Modulus
* R.T. Cure
** 150 F Post-Cure
ASTM D790
psi (MPa)
490,440 (3,384)
495,000 (3,410)
338,972 (2,339)
490,000 (3,380)
352,537 (2,433)
380,000 (2,620)
Tensile Strength
* R.T. Cure
** 150 F Post-Cure
ASTM D638
psi (MPa)
5,875 (41)
11,500 (79)
4,475 (31)
8,500 (59)
8,373 (58)
7,500 (52)
Tensile Modulus
* R.T. Cure
** 150 F Post-Cure
ASTM D638
psi (MPa)
311,990 (2,153)
315,000 (2,170)
253,857 (1,752)
275,000 (1,900)
245,785 (1,696)
245,000 (1,690)
Tensile Elongation
* R.T. Cure
** 150 F Post-Cure
ASTM-D638
%
2.2
5.1
2.0
4.0
6.0
3.7
*cured-7 days at 77 F (25 C) **cured 3 hours at 150 F (66 C)
– Systems cured 3 hours at 170 F (77 C)
Results are average values on laboratory prepared test samples
TECHNICAL DATA SHEET
AL 2020
February 19, Version 02 /2019
3
PROCESSING
After mixing according to the indicated ratio impregnate the reinforcement
according to the selected process. Accelerated cure schedule: The laminate
can be immediately placed into up to 150 F (66 C) oven for three hours.
Normal cure schedule: Allow to set 24 hours at room temperature,
then post cure up to 200 F if needed.
HANDLING PRECAUTIONS
Normal health and safety precautions should be observed when handling these products :
Ensure good ventilation.
Wear gloves, glasses and protective clothes.
For further information, please consult the Safety Data Sheets.
STORAGE CONDITIONS
Product shelf life of resin and hardener is 12 months when stored in original unopened
containers between 65 77 F (15 25 C). Any opened can must be tightly closed. Any
opened can must be tightly closed.
PACKAGING
Packaging information on request, please contact your local sales representative or find your
local contact on www.sikaadvancedresins.us
LEGAL NOTICE
The information, and, in particular, the recommendations relating to the application and end-use
of Sika products, are given in good faith based on Sika s current knowledge and experience of the
products when properly stored, handled and applied under normal conditions in accordance with
Sika s recommendations. In practice, the differences in materials, substrates and actual site
conditions are such that no warranty in respect of merchantability or of fitness for a particular
purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either
from this information, or from any written recommendations, or from any other advice offered.
The user of the product must test the product s suitability for the intended application and
purpose. Sika reserves the right to change the properties of its products. The proprietary rights of
third parties must be observed. All orders are accepted subject to our current terms of sale and
delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the
product concerned, copies of which will be supplied on request.
TECHNICAL DATA SHEET
AL 2020
February 19, Version 02 /2019
4
CONTACT
UNITED STATES
Sika Corporation
30800 Stephenson Highway
Madison Heights, Michigan 48071 USA
Tel.: (+1) 248 588-2270
Fax: (+1) 248 577-0810
E-mail: advanced.resins@us.sika.com
Website: www.sikaadvancedresins.us
by | Sep 27, 2025
by | Sep 27, 2025
SikaBiresin
AP007
1 /
2
PRODUCT DATA SHEET
SikaBiresin AP007
Version 01.01 (02 – 2024), en_US
PRODUCT DATA SHEET
SikaBiresin AP007 (Formerly APF 7)
Styrene- Free Polyester Filler with High Temperature Resistance
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin
AP007 is a styrene-free,
very fast setting, polyester-based,
industrial filler paste. It is specifically
formulated for filling, fairiring, and
repair applications and can be used in
high service temperatures applications
up to 400 F (204 C). When exposed to
elevated temperatures, SikaBiresin
AP007 has a tendency to darken,
however it does not gas, bubble, or
cause any finish distortion. SikaBiresin
AP007 bonds readily to itself or other
substrates, such as FRP/SMC, high
temperature epoxy molds, aluminum,
steel, cast iron, and urethane foam
parts. In its mixed, uncured state,
SikaBiresin AP007 has a smooth,
creamy consistency that enables the
user to make quick repairs with minimal
air entrapment.
PRODUCT BENEFITS
– Excellent adhesion
– Very fast setting
– Easy to use
– Minimal shrinkage
– High chemical and water resistance
– Excellent finishing / machinability
– High service temperature
– Low moisture absorption
– Above and below waterline applications
– High gloss finish
AREAS OF APPLICATION
SikaBiresin
AP007 is specifically
formulated for use in the aircraft,
aerospace, marine and other industries
that perform manufacturing and repair
work on items requiring room
temperature or above normal
temperature ranges. It may be used in
underwater applications.
Tests with actual materials and conditions
have to be performed to ensure satisfactory
performance.
Properties
SikaBiresin AP007 (A)
Resin
Cream
Hardener (B)
Composition Polyester Benzoyl peroxide
Mix ratio by weight 100 2
Aspect Thixotropic paste Liquid paste
Color White, gray, black White, black, red
Color (mixed) Various
Density at 77 F (25 C) (mixed) 13.6 lbs/gal (1.63 g/cc)
Pot life (102g) at 77 F (25 C) 4.0 7.0 Minutes
Volumetric Weight 0.061 lbs/in
3
(1.69 g/cc)
SikaBiresin
AP007
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikausa.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES
Cure schedule: 7 days at R.T. – 77F (25 C)
PROCESSING
Surface Preparation and Application
To ensure optimal adhesion, the area to be
filled or repaired should be thoroughly
cleaned, sanded/roughened, re-cleaned, and
allowed to dry prior to application.
Mixing Instructions
Stir contents of resin can thoroughly using a
spatula or putty knife. Place the required
amount of filler and cream hardener on a
disposable clean surface. Mix 100 parts paste
to 2 parts cream hardener by weight. Set up
time of mix at room temperature will be 10-
20 minutes
Application
The mixed SikaBiresin
AP007 should be
applied and worked into the area, taking
caution to avoid air entrapment. After curing
to a tack- free state, the material can be
sanded and finished as needed .
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Product shelf life of SikaBiresin AP007 (A) is
12 months when stored in original unopened
containers between 65 77 F (15 25 C).
Shelf life of Cream Hardener (B) is
18 months when stored in original unopened
containers between 65 77 F (15 25 C).
Keep containers tightly closed. Polyester
resin contains filler which has the potential to
separate in time, please re-homogenize prior
to use.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
03-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452.
Properties, Test Method
SikaBiresin AP007 (A)
Resin
Cream Hardener
Hardness, shore D ASTM D2240 85
Flexural strength, ASTM D790
6,280 psi (43 MPa)
Tensile strength, ASTM D638
3,150 psi (22 Mpa)
Compressive Strength, ASTM D695
9,870 psi (68 Mpa)
Peak service temperature 400 F (204 C)
by | Sep 27, 2025
SikaBiresin
AP0
0
4
1 /
2
PRODUCT DATA SHEET
SikaBiresin AP004
Version 01.01 (07 – 2024), en_US
PRODUCT DATA SHEET
SikaBiresin AP004 (Formerly APF-4)
Fast-Setting Polyester Filler
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin
AP004 is a fast-setting,
premium-performance, polyester-based
industrial filler paste. It is specifically
formulated for filling, fairing, and repair
applications and can be used in service
temperatures up to 285 F (140 C).
SikaBiresin
AP004 bonds to a wide variety
of materials including wood, aluminum,
cast iron, steel , copper, bronze, fiberglass
(FRP and SMC), honeycomb paneling and
urethane foam. Once cured, it forms a
rigid, strong surface which can be
machined, sanded, filed or scraped to a
feathered edge. SikaBiresin AP004
accepts virtually all types of coatings and
decorative film without any blush or
discoloration. In its mixed, uncured state,
SikaBiresin AP004 has a smooth, creamy
consistency that enables the user to make
quick repairs with minimal air entrapment.
PRODUCT BENEFITS
– Excellent adhesion
– Very fast setting
– Easy to use
– Minimal shrinkage
– Excellent finishing / machinability
– Can be used in service temperatures up to
285 F (140 C)
AREAS OF APPLICATION
SikaBiresin AP004 is suitable for
filling, fairing, and repair applications in a wide range of industries.
Typical applications include filling
surface porosity in composites panels
and structures, along with FRP
composite repair.
Tests with actual materials and conditions
have to be performed to ensure satisfactory
performance.
Properties
SikaBiresin AP004 (A)
Resin
Cream
Hardener (B)
Composition Polyester Benzoyl peroxide
Mix ratio by weight 100 2
Aspect Thixotropic paste Liquid paste
Color White, gray White, black, red
Color (mixed) Various
Density at 77 F (25 C) (mixed) 13.6 (1.63) lbs./gal (g/cc)
Pot life (100g) at 77 F (25 C) 4.0 7.0 Minutes
Volumetric Weight 0.059 lbs/in
3
(1.63 g/cc)
SikaBiresin
AP0
0
4
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikausa.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES
Cure schedule: 7 days at 77 F (25 C)
PROCESSING
Surface Preparation and Application
To ensure optimal adhesion, the area to be
filled or repaired should be thoroughly
cleaned, sanded/roughened, re-cleaned, and
allowed to dry prior to application.
Mixing Instructions
Stir contents of resin can thoroughly using a
spatula or putty knife. Place the required
amount of filler and cream hardener on a
disposable clean surface. Mix 100 parts paste
to 2 parts cream hardener by weight. Set up
time of mix at room temperature will be 10-
20 minutes
Application
The mixed SikaBiresin
AP004 should be
applied and worked into the area, taking
caution to avoid air entrapment. After curing
to a tack- free state, the material can be
sanded and finished as needed.
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Product shelf life of SikaBiresin AP0 04 (A) is
12 months when stored in original unopened
containers between 65 77 F (15 25 C).
Shelf life of Cream Hardener (B) is
18 months when stored in original unopened
containers between 65 77 F (15 25 C).
Keep containers tightly closed. Polyester
resin contains filler which has the potential to
separate in time, please re-homogenize prior
to use.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
03-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452.
Properties, Test Method
SikaBiresin AP004 (A)
Resin
Cream Hardener (B)
Hardness, shore D ASTM D2240 89
Flexural strength, ASTM D790
6,000 psi (41 Mpa)
Tensile strength, ASTM D638
2,100 psi (14 Mpa)
Compressive Strength, ASTM D695
6,200 psi (43 Mpa)
Tg per TMA, ASTM E-1545 128 F (53 C )
Peak service temperature 285 F (140 C)
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.
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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.
