CRC Extreme Duty Silicone is a premium grade silicone fluid with excellent lubrication and temperature viscosity characteristics. It leaves a thin, clear, odourless film that chemically reacts with metal surfaces to provide lubrication properties far superior than conventional silicone lubricants.As CRC Extreme Duty Silicone is a silicone lubricant, it will resist moisture in damp environments, providing long-lasting lubrication, and extreme temperature and pressure resistance. It is effective from effective from -38C to +316C and can withstand 1200lbs (Falex Test).