PTFE MIL-W-16878/4 MIL Spec wire is intended for electrical or electronic use in protected applications where high temperature will be encountered. The MIL Spec wire has excellent resistance to thermal aging, solder iron damage, flame, and moisture. PTFE also resists solvents, greases, ozone and most other chemicals. These wires are easy to install due to their small size and slippery surface. PTFE has excellent, stable electrical characteristics with low power loss, making it ideal for high frequency applications.