by | Sep 27, 2025
HexPly
M77HF
quick cure epoxy system for industrial applications
Product Data Sheet
Description
HexPly
M77HF prepreg is a fiber-reinforced modified epoxy resin system specifically designed for bladder
molding or sheet wrap tube applications. Unique chemistry provides fully cured parts in only three minutes at
300 F (149 C).
Features
Quick cure, three minutes at 300 F (149 C)
Available in wide variety of carbon or glass tapes and fabrics
High temperature stability for hot de-mold
Low viscosity, 10 poise at 230 F (110 C)
Applications
Neat Resin Properties
Neat Resin Property HexPly
M77HF
Specific Gravity 1.34
Glass Transition Temperature-DMTA, F ( C) 266 (130)
Tensile Strength, ksi (MPa) 11.8 (81)
Tensile Modulus, Msi (GPa) 0.50 (3.45)
Tensile Strain, % 3.7
K
1C
Fracture Toughness, ksi-in
1/2
(MPa-m
1/2
) 1.28 (1.41)
Cure Time at 300 F, minutes 3
Cure Time at 275 F, minutes 5
Cure Time at 225 F, minutes 30
Gel Time vs. Temperature
1
Golf Shafts
Bicycle Components
Hockey Sticks
Arrow Shafts
Fishing Rods
Prosthetics
Tool Temp Gel Time Cure Time in V (poise)
250 6.5 10
260 4 6 8
275 3 5 5
250 260 275 300
Product Data Sheet
2
Viscosity at Different Heat Up Rates
Availability
HexPly
M77HF is available in natural color, black and green and a wide variety of carbon or glass tapes and
fabrics. The currently made products are:
Form
Hexcel
Designation
Fiber
Fiber Areal
Wt. g/m
2
Weave
Count
Warp x Fill
Widths
Available In
(cm)
Resin
Content
%
Glass
Fabric
6543GL/M77HF-
12G
SCG 75 1/2 x
ECE 225 1/0
288 4H Satin 48 x 30 38 (96.5) 32
6557GL/M77HF-
12G
SCG 150 1/2 x
ECE 225 1/0
180 4H Satin 57 x 30 38 (96.5) 33
7781GL/M77HF-7B ECDE 75 1/0 301 8H Satin 57 x 54 50 (127) 45
Carbon
Fabric
W3X 282/M77HFS 3K 33MSI 197 Plain 12 x 12 50 (127) 40
Carbon
Tape
AS4AGP6K/M77HF 6K 80 Tape n/a 24 (61) 38
AS4AGP12K/
M77HF
12K 120, 150 Tape n/a 24 (61) 38
IM2C-GS/M77HF IM2C-GS 110 Tape n/a 24 (61) 40
HexPly
M77HF
quick cure epoxy system for industrial applications
Product Data Sheet
3
Mechanical Properties
Prepreg
CHS/M77HF;
35%;150AW
MS40/M77HF;
31%;120AW
IM4/M77HF;
31%;120AW
CHS24K/M77HF;
36%;150AW
Fiber AS4C MS40 IM4 T600
FAW (gsm) 150 120 120 150
Tensile Strength,
ksi (GPa)
336 (2.32) 372 (2.56) 323 (2.23)
329 (2.27)
Tensile Modulus,
Msi (GPa)
18.1 (125) 26.7 (184) 21.1 (145)
17.1 (118)
Compression Strength,
ksi (GPa)
218 (1.50) 233 (1.61) 222 (1.53)
240 (1.65)
Compression Modulus,
Msi (GPa)
16.9 (117) 24.3 (168) 20.0 (138)
17.8 (123)
Short Beam Shear,
ksi (MPa)
12.2 (84.1) 12.2 (84.1) 12.4 (85.5)
12.9 (88.9)
Flexural Strength,
ksi (Gpa)
191 (1.32) 193 (1.33) 203 (1.40)
214 (1.48)
Flexural Modulus,
Msi (GPa)
16.9 (117) 24 (165) 19.2 (132)
16.5 (114)
1. Normalized to 55% fiber volume 2.75 F, dry.
Cure Cycle
HexPly
M77HF is designed to be cured using bladder molding, cello wrap, compression molding, or autoclave
conditions. The standard autoclave cure is 10 minutes at 250 F (121 C) with 85 psig minimum pressure.
*At higher elevations 22 inches Hg may be impossible to reach, in which case 20 inches Hg is permissible.
Alternative Cure Cycles:
1) 3 minutes at 300 F (149 C)
2) 6 minutes at 260 F (127 C)
3) 10 minutes at 250 F (121 C)
300
250
0 20 40 60 80 100 130
200
150
100
50
0
Time (minutes)
Hold 10 min
250 F
120 F
Heat-up
2-5 F/min
Cool-down
5 F/min
22 F in Hg vacuum to start;
Vent when pressure reaches 20 psig
85-100 psig
HexPly
M77HF
quick cure epoxy system for industrial applications
Product Data Sheet
4
Storage
Shelf Life: 18 months at 0 F (-18 C) (maximum, from date of manufacture)
Out Life: 30 days at 73 F (23 C)
Tack Life: 10 days at 73 F (23 C)
Storage Conditions
HexPly
M77HF prepregs should be stored as received in a cool dry place or in a refrigerator. After removal from
refrigerator storage, prepreg should be allowed to reach room temperature before opening the polythene bag,
thus preventing condensation. (A full creel in its packaging can take up to 48 hours).
Precautions for Use
The usual precautions when handling uncured synthetic resins and fine fibrous materials should be observed,
and a Safety Data Sheet is available for this product. The use of clean disposable inert gloves provides protection
for the operator and avoids contamination of material and components.
Shipping
Prepreg is generally shipped in a sealed polyethylene bag in refrigerated transportation or in containers with dry ice.
Disposal of Scrap
Disposal of this material should be in a secure landfill in accordance with state and federal regulations.
FTI 409 ST22
HexPly
M77HF
quick cure epoxy system for industrial applications
2022 Hexcel Corporation All rights reserved. Hexcel Corporation and its subsidiaries ( Hexcel ) believe that the technical data and other information
provided herein was materially accurate as of the date this document was issued. Hexcel reserves the right to update, revise or modify such technical data and
information at any time. Any performance values provided are considered representative but do not and should not constitute a substitute for your own testing
of the suitability of our products for your particular purpose. Hexcel makes no warranty or representation, express or implied, including but not limited to the
implied warranties of merchantability and fitness for a particular purpose, and disclaims any liability arising out of or related to, the use of or reliance upon any of
the technical data or information contained in this document.
For more information
Hexcel is a leading worldwide supplier of lightweight composite materials to aerospace and industrial markets.
Our comprehensive range includes:
For U.S. quotes, orders and product information call toll-free 1-800-688-7734. For other worldwide sales office
telephone numbers and a full address list, please go to:
https://www.hexcel.com/contact
HexTow
carbon fibers
HexForce
reinforcements
HiMax
multiaxial
reinforcements
HexPly
prepregs
HexMC
-i molding compounds
HexFlow
RTM resins
HexBond
adhesives
HexTool
tooling materials
HexWeb
honeycomb
Acousti-Cap
sound
attenuating honeycomb
Engineered core
Engineered products
Polyspeed
laminates
& pultruded profiles
HexAM
additive manufacturing
by | Sep 27, 2025
HexForce
GA130
Carbon Fabric
Product Data
STYLE GA130 US System
Type of Yarns Warp Yarn: 12K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 13.20 oz/yd
2
448 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 14/in
Fill Count: 4/in
Fabric Thickness 16.9 mil 0.43 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA090
Carbon Fabric
Product Data
STYLE GA090 US System
Type of Yarns Warp Yarn: 12K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 8.9 oz/yd
2
302 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 10/in
Fill Count: 4/in
Fabric Thickness 12.5 mil 0.32 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA090
Carbon Fabric
Product Data
STYLE GA090 US System
Type of Yarns Warp Yarn: 12K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 8.9 oz/yd
2
302 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 10/in
Fill Count: 4/in
Fabric Thickness 12.5 mil 0.32 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA090
Carbon Fabric
Product Data
STYLE GA090 US System
Type of Yarns Warp Yarn: 12K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 8.9 oz/yd
2
302 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 10/in
Fill Count: 4/in
Fabric Thickness 12.5 mil 0.32 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA060
Carbon Fabric
Product Data
STYLE GA060 US System
Type of Yarns Warp Yarn: 12K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 6.70 oz/yd
2
227 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 7.0/in
Fill Count: 4.0/in
Fabric Thickness 10.4 mil 0.26 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA045
Carbon Fabric
Product Data
STYLE GA045 US System
Type of Yarns Warp Yarn: 6K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 4.40 oz/yd
2
149 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 10/in
Fill Count: 4/in
Fabric Thickness 6.7 mil 0.17 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA060
Carbon Fabric
Product Data
STYLE GA060 US System
Type of Yarns Warp Yarn: 12K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 6.70 oz/yd
2
227 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 7.0/in
Fill Count: 4.0/in
Fabric Thickness 10.4 mil 0.26 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
HexForce
GA045
Carbon Fabric
Product Data
STYLE GA045 US System
Type of Yarns Warp Yarn: 6K Carbon, 33MSI
Fill Yarn: Proprietary Heatset
Fabric Weight, Dry 4.40 oz/yd
2
149 g/m
2
Weave Style Plain Heatset
CONSTRUCTION
Nominal Construction Warp Count: 10/in
Fill Count: 4/in
Fabric Thickness 6.7 mil 0.17 mm
IMPORTANT
All information is believed to be accurate but is given without acceptance of liability. All values have been
generated from limited data. The values listed for weight, thickness and breaking strengths are typical greige
values, unless otherwise noted. Users should make their own assessment of the suitability of any product for
the purpose required. All sales are made subject to our standard terms of sales which include limitations on
liability and other important terms. The fabric style listed may not be available from inventory and minimum
order quantities may apply.
FOR FURTHER INFORMATION, PLEASE CONTACT US
1913 North King Street
Seguin, Texas 78155
Phone: 830-379-1580
Fax: 830-379-9544
Customer Service Toll Free: 1-866-601-5430
For European sales office numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffices
Hexcel and Hexcel logo are registered trademarks of Hexcel Corporation, Stamford, Connecticut.
HexForce is a trademark of Hexcel Corporation, Stamford, Connecticut.
by | Sep 27, 2025
FCIM490 [C24k, 600, +45/-45]
HiMax CGL5632
Product Data Sheet
Fabric Construction
Fibre Type:Carbon Texturised Polyester
Pillar
2.5 mm
7 gsm
6.0 gg
Customer Code and Description: Customer Specified
Ply Construction
78
Stitching Fibre
Stitching Thread:
Stitch DTex:
Stitch Length:
Stitch Type:
Stitch Gauge:
Stitch Weight:
Construction:+45/-45
Fabric Width: 1270mm (+/- 5mm) – or tapes on application
Tracer Threads / Tapered Edges:Customer Specified
Approved Fibres: On Application
Roll Weight / Length: Customer Specified
Cardboard Core: Customer Specified
Packaging: Customer Specified
Customisation
Fabric Weight:601 gsm +/- 5%
Layer 2: +45
Fibre Tex: 1600 tex
Gauge: 3.33 gg
Ply Weight: 297 gsm
Fibre Specification:24k standard modulus carbon
Layer 1: -45
Fibre Tex: 1600 tex
Gauge: 3.33 gg
Ply Weight: 297 gsm
Fibre Specification:24k standard modulus carbon
2016 Hexcel Corporation – All rights reserved. Hexcel Corporation and its subsididiaries (“Hexcel”) believe that the technical data and other information
provided herein was materially accurate as of the date this document was issued. Hexcel reserves the right to update, revise or modify such technical data
and information at any time. Any performance values provided are considered representative but do not and should not constitute a substitute for you own
testing of the suitability of our products for your particular purpose. Hexcel makes no warranty or representation, express or implied, including but not limited
to the implied warranties of merchantability and fitness for a particular purpose, and disclaims any liability arising out of or related to, the use of or reliance
upon any of the technical data or information contained in this document.
FCIM490 [C24k, 600, +45/-45]
HiMax CGL5632
Product Data Sheet
For more information
Hexcel is a worldwide supplier of composite materials to aerospace and industrial markets.
Our comprehensive range includes:
HexTow carbon fibres
HexForce reinforcements
HiMax non-crimp fabrics
HexPly prepregs
HexMC moulding compounds
HexFlow RTM resins
Redux adhesives
HexTool tooling materials
HexWeb honeycombs
Acousti-Cap sound
attenuating honeycomb
Engineered core
Engineered products
For quotes, orders and product information call +44 116 275 2200. For other worldwide sales office
telephone numbers and a full address list, please go to:
http://www.hexcel.com/contact/salesoffice
2016 Hexcel Corporation – All rights reserved. Hexcel Corporation and its subsididiaries (“Hexcel”) believe that the technical data and other information
provided herein was materially accurate as of the date this document was issued. Hexcel reserves the right to update, revise or modify such technical data
and information at any time. Any performance values provided are considered representative but do not and should not constitute a substitute for you own
testing of the suitability of our products for your particular purpose. Hexcel makes no warranty or representation, express or implied, including but not limited
to the implied warranties of merchantability and fitness for a particular purpose, and disclaims any liability arising out of or related to, the use of or reliance
upon any of the technical data or information contained in this document.
