PRODUCT DATA SHEET
Aerospace |Electronics |Medical| Automotive |Construction |Rail |Marine
CUSTOMER SUPPORT
PHONE
(949) 623-4400
EMAIL
Support@AxiomMaterials.com
WEBSITE
www.AxiomMaterials.com
FAX
(949) 261-6009
AXIOM MATERIALS, Inc.
2320 Pullman St.
Santa Ana, CA 92705
Structural, Flame RetardantCarbon Fiber Prepreg, 250 F Cure
Typical ApplicationsProduct Description
AX-5201FR is a 250 F (121 C) curing
epoxy carbon prepreg designed to
produce composite components using
either vacuum bag oven or autoclave
cure cycles. The prepreg system is ideal
for multi-ply laminates requiring a
cosmetic finish, flame retardance, and
high strength and damage tolerance.
Parts built with AX-5201FR exhibit good
high thermal and UV stability as well as
resistance to water and industrial fluids.
AX-5201FR is provided with high tack for
the layup of contoured components. The
recommended service temperature
envelope for AX-5201FR is -67 (-55 C) to
300 F (149 C).
AX-5201FR is available on virtually all
woven carbon fabric styles (e.g.282,
284, 622, 670, etc.) and at virtually any
requested resin content.
Standard resin content:
40% by weight (284 style / 3K 2×2 twill)
Standard tack: High
Coating: One side or two side tack
Color: available in clear, light black, or
dark black grades
Flame retardant structural components
with FAR25.853 vertical burn requirements
High toughness / strength composite
laminates vacuum bag
Automotive parts and components
Aerospace parts & components
Marine parts and components
Sporting goods
AX-5201FR
Packaging
Standard Widths:
50 (127 cm)
60 (152 cm)
Standard Roll Length:
50 LY (46 m)
Other lengths and widths available
Our products are flexible by design:
Additional weights, roll sizes, and reinforcements are available.

PRODUCT DATA SHEET
Aerospace |Electronics |Medical| Automotive |Construction |Rail |Marine
CUSTOMER SUPPORT
PHONE
(949) 623-4400
EMAIL
Support@AxiomMaterials.com
WEBSITE
www.AxiomMaterials.com
FAX
(949) 261-6009
AXIOM MATERIALS, Inc.
2320 Pullman St.
Santa Ana, CA 92705
Recommended Cure CyclesCure Considerations
Table 1. Average Properties
1
Property Test MethodTest Temp.AvgValue
Glass transition temperature ASTM D5279Range 303 F (151 C)
Cured ply thickness Ballmicrometer75 F (24 C)0.0085 (0.22mm)
AX-5201FR
Optimum properties are achieved with the
following cycles:
Apply 10-100 psi (0.69-6.9 bar) and
ramp to temperature at 2-6 F / minute and
cure according to the following:
120 minutes 235 F (113 C), OR
60 minutes at 250 F (121 C), OR
30 minutes at 300 F (149 C).
Cool at a rate of 2-8 F / minute to 140 F
(60 C) or below prior to removing part.
Temperature heat up and cool down
under pressure is recommended, but
not mandatory depending on process.
This prepregis vacuum-bag, platen
press, and autoclave compatible.
Peak operating temperatures
generally depend on cure temperature.
For a 300 F (149 C) cure the service
temperature envelope is -67 F (-55 C) to
300 F (149 C).
Structural, Flame RetardantCarbon Fiber Prepreg, 250 F Cure
1
Tested on a 12 plylaminate AX-5201FR-282-50 RC40. Platen Press cured 40 PSI. Dwell 30 minutes
at 300 F (149 C).

PRODUCT DATA SHEET
Aerospace |Electronics |Medical| Automotive |Construction |Rail |Marine
CUSTOMER SUPPORT
PHONE
(949) 623-4400
EMAIL
Support@AxiomMaterials.com
WEBSITE
www.AxiomMaterials.com
FAX
(949) 261-6009
AXIOM MATERIALS, Inc.
2320 Pullman St.
Santa Ana, CA 92705
Table 2. Mechanical Properties
1
AX-5201FR
Structural, Flame RetardantCarbon Fiber Prepreg, 250 F Cure
1
Tested on a 12 plylaminate AX-5201FR-282-50 RC40. Vacuum bag cured, ramped to 300 F / dwelled
30 minutes at temperature.
Property Test MethodTest ConditionStrength Modulus
Tensileproperties
1
ASTMD303975 F (24 C)93 ksi(641 MPa)9.3 msi(64 GPa)
ASTMD3039180 F (82 C)81 ksi(558 MPa)8.4 msi(58 GPa)
Compressive properties
1
SACMA SRM175 F (24 C)88 ksi(606 MPa)8.8 msi(61 GPa)
Flexural properties
1
ASTM D79075 F (24 C)136 ksi(944 MPa)9.4 msi(65 GPa)
ASTM D790180 F (82 C)118 ksi(815 MPa)9.0 msi(62 GPa)
Interlaminar shear
strength
1
ASTM D100275 F (24 C)10.4 ksi(72 MPa)N/T

PRODUCT DATA SHEET
Aerospace |Electronics |Medical| Automotive |Construction |Rail |Marine
CUSTOMER SUPPORT
PHONE
(949) 623-4400
EMAIL
Support@AxiomMaterials.com
WEBSITE
www.AxiomMaterials.com
FAX
(949) 261-6009
AXIOM MATERIALS, Inc.
2320 Pullman St.
Santa Ana, CA 92705
All data is provided for informational purposes only and does not guarantee or warranty a specification for which Axiom Materials assumes legal
responsibility. Users should perform verification and testing to determine suitability for their specific process and curingconditions. Refer to the Safety
Data Sheet (SDS) and label for safe use and handling instructions. This product is for industrial/commercial use and must be applied by trained
personnel only.
Handling & Safety InstructionsStorage Requirements
Store prepreg suspended horizontally to
avoid flat spots and thinning under the weight
of the roll.
Allow product sufficient time (4-6 hours) to
reach ambient temperatures after removal
from cold storage to prevent condensation on
the adhesive surface.
Use the appropriate safety equipment for
this product.
Refer to the AX-5201FR Safety Data Sheet
for specific safety instructions.
Cautionary Notice
In a bind? Call us anytime. We provide
fast and knowledgeable technical support:
PHONE(949) 623-4400
EMAILSupport@AxiomMaterials.com
WEBSITEwww.AxiomMaterials.com
FAX (949) 261-6009
Technical Assistance
Rev D, 2/22/23
AX-5201FR
Structural, Flame RetardantCarbon Fiber Prepreg, 250 F Cure
Access Product Data ONLINE
www.AxiomMaterials.com
Shelf life is from date of manufacturing
when stored at or below the following
conditions. Working life is the cumulation
of time above the storage temperature.
Table 3. Shelf and Working Life
Storage Condition AX-5201FR
ShelfLife at 0 F (-18 C)12 months
ShelfLife at 40 F (4 C) 6 months
Working Life at 75 F
(24 C)
21 days