Prepregs

Large variety of composite prepregs ◾ The go-to material for aerospace, medical and other demanding applications ◾ In stock & available in small quantities for prototyping, Makers and DIYers
Rock West Composites stocks more than 20 styles of prepregs including our line of PROPreg™ proprietary composite prepreg materials. Regardless of the application or budget, you’ re bound to find an ideal combination of materials for your project. Perhaps it’s a NASA-approved resin system offering low outgassing properties coupled with toughening additives. Or maybe you’ re looking for naturally-grown, flax fibers coupled with a biologically-based epoxy resin system. Even if you’ re an engineering department in an academic setting that requires high-quality materials for a lower price, Rock West’s ProPreg is an ideal solution. Additionally, we offer decades of processing expertise and know-how, should you need some additional advice and assistance when it comes to prepreg processing or prepreg applications.
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Supported Film AdhesiveFilm Adhesive - Supported General Purpose (NB102 Film Adhesive) - 0.006" Thick - 156 gsm OAW - 250F AdhesiveSKU: 14058-D-GROUPStarting at $21.99SKU: 14058-D-GROUPYou will be able to customize your order later in the cart.
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Made in the USAPrepreg - Carbon Fiber (Grafil 34-700) Epoxy (Newport 301) - 0.006" Thick - Standard Modulus Unidirectional (232 gsm OAW) - 250F ResinSKU: 14077-D-GROUPStarting at $20.99SKU: 14077-D-GROUPYou will be able to customize your order later in the cart.
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High-Mod Made in the USAPrepreg - Carbon Fiber (Grafil HR40) Epoxy (Newport 321) - 39.37" Wide x 0.0034" Thick - High Modulus - Unidirectional (134 gsm OAW)SKU: 14008-D-GROUPStarting at $20.99SKU: 14008-D-GROUPYou will be able to customize your order later in the cart.
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Made in the USAPrepreg - Carbon Fiber (Grafil MR60H) Epoxy (Newport 301) - 39.37" Wide x 0.0046" Thick - Intermediate Modulus - Unidirectional (174 gsm OAW)SKU: 14019-D-GROUPStarting at $20.99SKU: 14019-D-GROUPYou will be able to customize your order later in the cart.
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Made in the USAPrepreg - Carbon Fiber (Grafil TR50S) & Epoxy (Newport 301) - 39.37" Wide x 0.0046" Thick - Standard Modulus - Unidirectional - (190 gsm OAW) - 250F ResinSKU: 14003-D-GROUPStarting at $20.99SKU: 14003-D-GROUPYou will be able to customize your order later in the cart.
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Made in the USAPrepreg - Carbon Fiber (Grafil TR50S) & Epoxy (Newport 301) - 39.37" Wide x 0.006" Thick - Standard Modulus - Unidirectional - (232 gsm OAW) - 250F ResinSKU: 14046-D-GROUPStarting at $20.99SKU: 14046-D-GROUPYou will be able to customize your order later in the cart.
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Made in the USAPrepreg - Carbon Fiber (Grafil TR50S) & Epoxy (Newport 321) - 39.37" Wide x 0.006" Thick - Standard Modulus Unidirectional (232 gsm OAW) - 250F ResinSKU: 14025-D-GROUPStarting at $20.99SKU: 14025-D-GROUPYou will be able to customize your order later in the cart.
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Made in the USAPrepreg - Carbon Fiber (Hexcel AS4) Epoxy (Newport 301) - 50" Wide x 0.01" Thick - Standard Modulus - 3k Plain Weave (356 gsm OAW)SKU: 14031-D-GROUPStarting at $21.99SKU: 14031-D-GROUPYou will be able to customize your order later in the cart.
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Prepreg - Carbon Fiber (Hexcel AS4) Epoxy (Newport 301) - 50" Wide x 0.012" Thick - Standard Modulus - 3k 2x2 Twill Weave (375 gsm OAW)SKU: 14054-D-GROUPStarting at $21.99SKU: 14054-D-GROUPYou will be able to customize your order later in the cart.
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Prepreg - Carbon Fiber (M55J) Cyanate Ester - Ready To Build (for fabrication, not resell)SKU: PREPREG-M55J-TEST$1,000.00SKU: PREPREG-M55J-TEST
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Best Value!Prepreg - Carbon Fiber (Toray T300) + 250F Epoxy - 39.37" Wide x 0.011" Thick - Standard Modulus - 3k 2x2 Twill Weave - (366 gsm OAW)SKU: 14033-D-GROUPStarting at $21.99SKU: 14033-D-GROUPYou will be able to customize your order later in the cart.
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Best Value!Prepreg - Carbon Fiber (Toray T300) + 250F Resin System - 39.5" Wide x 0.011" Thick - Standard Modulus 3k - Plain Weave - (366 gsm OAW)SKU: 14073-D-GROUPStarting at $21.99SKU: 14073-D-GROUPYou will be able to customize your order later in the cart.
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Best Value!Prepreg - Carbon Fiber (Toray T700S) + 250F Epoxy - 39" Wide x 0.01" Thick - 12k Spread Tow Plain WeaveSKU: 14049-D-GROUPStarting at $21.99SKU: 14049-D-GROUPYou will be able to customize your order later in the cart.
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High Modulus M40J Fiber --- Best Value!Prepreg - Carbon Fiber + 250F Resin System - 39.37" Wide x 0.006" Thick - High Modulus - Unidirectional (230 gsm OAW)SKU: 14076-D-GROUPStarting at $20.99SKU: 14076-D-GROUPYou will be able to customize your order later in the cart.
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Best Value!Prepreg - Carbon Fiber + 250F Resin System - 39.37" Wide x 0.006" Thick - Standard Modulus - Unidirectional (227 gsm OAW)SKU: 14002-D-GROUPStarting at $20.99SKU: 14002-D-GROUPYou will be able to customize your order later in the cart.
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1K Plain WeavePrepreg - Carbon Fiber - 42" Wide x 0.006" Thick - Standard Modulus - 1K Plain Weave - 250F Cure ResinSKU: 14062-D-GROUPStarting at $23.99SKU: 14062-D-GROUPYou will be able to customize your order later in the cart.
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Best Value!Prepreg - Fiberglass (E-Glass) - Unidirectional (470 OAW) - 250F Resin - 40" Wide x 0.011" ThickSKU: 14042-D-GROUPStarting at $20.99SKU: 14042-D-GROUPYou will be able to customize your order later in the cart.
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BLOWOUTPrepreg - Fiberglass (E-Glass) - Unidirectional (474 gsm OAW) - 250F Newport 301 Resin - 40" Wide x 0.011" ThickSKU: 14071-D-GROUPStarting at $20.99SKU: 14071-D-GROUPYou will be able to customize your order later in the cart.
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Prepreg - Fiberglass Fabric (Aluminized Texalium E-Glass) - 40" Wide x 0.0125" Thick - 2x2 Twill Weave (527 gsm OAW)SKU: 14035-D-GROUPStarting at $22.99SKU: 14035-D-GROUPYou will be able to customize your order later in the cart.
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Prepreg - Fiberglass Scrim (1080 E Glass) + Epoxy (Newport 301) - 38" Wide x 0.003" Thick - 60% Resin Content w/Black Pigment (122 gsm OAW)SKU: 14017-D-GROUPStarting at $21.99SKU: 14017-D-GROUPYou will be able to customize your order later in the cart.
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Prepreg - Fiberglass Woven (120 Glass) Epoxy (Newport 301) - 38" Wide x 0.005" Thick - 40% Resin Content w/out pigment (185 gsm OAW)SKU: 14015-D-GROUPStarting at $20.99SKU: 14015-D-GROUPYou will be able to customize your order later in the cart.
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Best Value!Prepreg - Fiberglass Woven (7781 E-Glass) - 39.7" Wide x 0.010" Thick - 32% Resin Content w/out pigment (440 gsm OAW) - 250F ResinSKU: 14072-D-GROUPStarting at $20.99SKU: 14072-D-GROUPYou will be able to customize your order later in the cart.
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MTM46 / 7781Prepreg - Fiberglass Woven (CYTEC / SOLVAY E-Glass) - 38% RC - 50" Wide x 0.010" Thick - 8 Harness Satin (485 gsm OAW) - 266F Resin - ~480 Sqft. [Expired Dec 2019]SKU: 14022-D-FULLROLL$3,684.19SKU: 14022-D-FULLROLLYou will be able to customize your order later in the cart.
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Natural Flax FiberPREPREG - FLAX FIBER (110 GSM EKOA) - 15.7" WIDE X 0.006" THICK - UNIDIRECTIONAL - 250F RESINSKU: 14065-D-GROUPStarting at $21.99SKU: 14065-D-GROUPYou will be able to customize your order later in the cart.
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Ships FrozenSample Pack - Pre Preg - Select From All Available Prepregs - Ships FrozenSKU: SAMPLES-PREPREG$13.99SKU: SAMPLES-PREPREGYou will be able to customize your order later in the cart.