Permatex water pump and thermostat RTV silicone gasket is a non-corrosive, sensor-safe RTV silicone gasket material formulated specifically for water pumps and thermostat housings. This gasket maker has the highest water-glycol resistance available in an RTV silicone. With a temperature range of -65 degree Fahrenheit to 500 degree Fahrenheit intermittent, these gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties. Extended warranties, engine sensors and new component materials such as aluminum, bi-metal alloys and high-tech plastics, have created the need for superior RTV silicone gasket makers in both original equipment manufacturer production and service applications. Permatex always has the right gasket maker for your application.