If you want to perform machining and fabrication in-house, Atlas Fibre has thermoset composite sheets available. We have a large selection of in-stock thermoset and thermoplastic sheets at our facility in Illinois and our two partner facilities.

At Atlas Fibre, we provide the advice and resources to help you feel confident you’ve chosen the right material for your project. We want to work with you to reduce your project’s complexity and costs. Learn more about our selection of stock thermoset composite sheets and panels.

Thermoset Composite Plastic Sheets

Thermoset plastic sheets are produced by pressing and curing prepreg materials into a flat sheet. The sheets are then cut and fabricated through several processes.

Sheet thickness depends on the number of plies in the sheet layup and can typically range from 0.005″ to more than 8″ in thickness. Overall dimensions are based on your project needs but traditionally full-size sheets come in three sizes, 36×48″, 48×48″, and 48×96″. Extra large sheets are also available by special request up to 48×120″. All composite sheets can be cut to size for your specific project.

Our thermoset composite panels comply with various standards, including NEMA and MIL-I. The materials can be tested to verify their performance properties.

Composite Panels

We have stock laminate sheets available in a range of thermoset materials. Our composite panel options include:

  • Glass epoxy panels such as G10 and FR4
  • Paper phenolic panels such as XX and XXX
  • Linen phenolic panels such as L and LE
  • Canvas phenolic panels such as C and CE
  • Glass melamine panels such as G5 and G9

Thermoplastic Sheets

In addition to thermoset composites, Atlas Fibre specializes in machining and molding thermoplastic sheets. Since heating strengthens and cures thermosets, they cannot be melted after that point. Unlike thermosets, thermoplastics can be reheated for further molding or forming. Despite the differences between these materials, thermoplastic sheets can be processed in ways similar to thermoset composite materials.

Choosing the Right Material for Composite Sheets

The materials you need depend on your application and project. Some composite materials have better heat resistance than others and can withstand extreme heat or cold. If you’re working with cryogenic temperatures, for example, you must choose a material that can withstand below-freezing temperatures.

Certain materials offer better electrical insulation than others, too. For example, if you know you want to work with a canvas or linen phenolic and that you need electrical insulation, it’s important to choose either CE- or LE-grade phenolic as standard C and L grades don’t have adequate electrical insulation.

Two other factors to consider when choosing your thermoset sheet material are flexural strength and impact resistance. These properties measure the material’s ability to withstand bending and impact forces applied to the thermoset. We can help you choose the right material based on your application, specifications, and other needs.

If you’re unsure which option is ideal for your project, you don’t have to determine which type of material is right on your own. We’ll partner with you and offer our expert advice and guidance.

Contact Atlas Fibre for a Quote on Composite Sheets Today

We have laminate sheets in stock and ready to ship. Contact us today for price and availability.

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