Loctite ® RTV Silicone 587™ forms tough, flexible gaskets directly on the flange. Sensor-safe, low odor, non-corrosive. Excellent oil resistance and joint movement values. Eight times more flexible than cork/composite gaskets; three times more oil resistant than conventional silicones. Temperature range -75 °F to 500 °F intermittent; resists auto and shop fluids.