Permatex High Temperature Thread Sealant. A medium strength anaerobic sealant. Locks and seals threaded fittings. Lubricates threads for easy assembly and disassembly. Resists leakage, vibration loosening, moisture, hydraulic fluids and diesel fuels. Won't shred or wear like Teflon tape. Parts may be repositioned up to 4 hours after application. Will withstand temperatures from -65 degrees F to 400 degrees F (-54 degrees C to 204 degrees C). Not recommended for use on plastic piping. Contains PTFE. 50 ml.