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Carbon Fiber Unidirectional Sheets



ACP’s Carbon Fiber Unidirectional Sheets are ideal as a flat material option for structural applications where minimum weight is essential or to add stiffness to almost any composite material.

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ACP’s Carbon Fiber Unidirectional Sheets offer maximum tensile and bending stiffness along a single axis. They are manufactured by laying unidirectional carbon fiber prepreg so that all the carbon fibers run in the zero direction or parallel to the length of the part. This construction method makes our Carbon Fiber Unidirectional Sheets ideal as a flat material option for structural applications where minimum weight is essential or to add stiffness to almost any material such as fiberglass, foam, or balsa wood.

Once cured, these sheets cannot be re-shaped. Therefore, they will not lie flat on compound curves, convex or concave surfaces. In order to achieve maximum stiffness each sheet should be installed with proper fiber orientation.

Our proprietary Autoclave curing process produces the most consistent carbon fiber sheets possible. Manufactured using 100% real carbon fiber fabric pre-impregnated with superior epoxy resin, these sheets are cured at high temperatures and pressure to ensure a strong, rigid product that cannot be re-shaped after cured. Unlike wet layup, our Autoclave curing process consistently yields flat, lightweight sheets with minimal voids, waves or buildups.

Notice: Unidirectional sheets are prone to splitting, which is the nature of the product.

Uses Include

  • Reinforcements for areas where higher loads are expected.



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Physical Properties

  • Thickness:
    • .007″ : +/- .003″
    • .014″ , .022″, .030″ : +/- .005″
    • .045″, .060″ : +/- .010″
  • Width: +/-0.50″
  • Material: Unidirectional Carbon Fiber Prepreg
  • Fiber Volume: 60-65%
  • Resin Matrix: Epoxy
  • Layup Construction: 0°
  • Finish: Bondable, Roughened Surface-Both Sides

  Technical Properties

  • Tensile Strength: 285 ksi
  • Tensile Modulus: 17.5 msi
  • Compressive Strength: 160 ksi
  • Compressive Modulus: 17.0 msi
  • Flexural Strength: 310 ksi
  • Flexural Modulus: 17.0 msi

Please note: All data to be used as a guide only; not a specification.



Need something different? We’ve got you covered. As a leading manufacturer of composite structures you can rely on us to provide rapid, cost-effective and high-quality solutions to meet and exceed your project requirements. We MAKE it. ACP manufacturers Unidirectional Carbon Fiber Sheets in-house and can customize this product to your specifications. ACP’s Unidirectional Sheets are stocked in standard sheet sizes up to 24″ x 72″. Customizable options are available on a special order basis.

  • Fiber Selection
  • Thickness
  • Layup/Construction
  • Surface Finish
  • Size​s up to 60″ x 120″
  • Finishing

*ACP has a maximum work envelope of 60″ x 120″. Available options are contingent on tooling and material availability. We CUSTOMIZE it. Finishing Services Include:

  • Bonding
  • CNC Machining
  • Clear Coating
  • Countersinking
  • Cutting
  • Painting
  • Silk-Screening



Due to size restrictions, 24″ x 72″ sizes may require custom packaging and may have to ship via freight services. If custom packaging is required, a $30.00 handling fee will apply and will automatically be added to the order. Final shipping charges may not be available at the time of ordering. A quote can be requested or shipping charges can be automatically billed at the time of shipment.


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