Description
Teflon ™ FFR 550 is a fluoroplastic resin compounded with a foam nucleating package. This resin is supplied as white pellets and is used in a nitrogen gas-injected foam extrusion process to produce uniform foam cells in the dielectric insulation. Foaming the fluoroplastic reduces its dielectric constant, providing opportunities for miniaturization and weight savings. Foamed insulation of Teflon ™ FFR 550 produces cables for high frequency signal transmission with minimal distortion.

Teflon ™ FFR 550 is ideal for producing coaxial cable cores in a broad range of sizes. A typical coaxial cable core would have conductor sizes of 30 AWG or greater, wall thickness of 0.010 in or greater, with void content from 20% to 60%.

These voids are closed cell in nature and range from 0.0007 in (0.018 mm) to 0.005 in (0.127 mm) in diameter. Achievable void content will vary based on wall thickness and processing conditions.