C-STOCK RH is a series of rigid Polymethacrylimide foams which will withstand temperatures to 380°F. C-STOCK RH has a high compression and shear strength and a very low dielectric constant and low loss factor. It is easily machined to close tolerances.
C-STOCK RH is useful as a low density, high temperature structural member, as a thermal barrier material, and as an RF window material. C-STOCK RH may be thermo-formed at temperatures of 325°F to 360°F, and therefore finds significant uses as radome core material.
 Technical Data Sheet
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