Loctite ® 587™ Blue, High Performance RTV Silicone Gasket Maker is a one part RTV silicone that forms tough, flexible gaskets directly on the flange. Offers excellent adhesion to oily surfaces. Low odor, non-corrosive, low volatility. Withstands temperatures to 500 °F (260 °C) intermittent. Resistant to most chemicals and solvents. Fills gaps to 0.25".