Zep RTV Silicone Fast Gasket Maker can seal or replace a variety of gaskets, including those made from cork, paper, asbestos, felt, and metal, using a low-volatile, 100% silicone formula Simple to use, this tool requires no cartridges, caulking guns, or squeeze tubes; it delivers a fine bead with just a touch of the finger, ensuring tidier work and minimal waste Ideal for sealing flanges, cover plates, hose connections, and threaded assemblies. It offers resistance to water and heat from -76°F (-60°C) to 350°F (177°C) Can be applied to oil pans, oil pumps, water pumps, thermostat housings, timing cases, valve covers, push rod covers, transmission pans, camshaft covers, window seals, pipe joints, ductwork, and more Not recommended for continuous immersion in gasoline or head gasketing applications. Not recommended for exterior, below-waterline marine applications Zep Fast Gasket Black is a clear silicone rubber bonding and sealing compound. Its 100 percent silicone formula provides permanent flexibility and adhesion. It is perfect for sealing cracks and joints in the roofs and sides of school buses, construction equipment and farm equipment. It creates formed-in-place gaskets for gearboxes, compressors and pumps. No caulking gun or squeeze tube needed, and the compound produces a fine bead at the touch of a finger for neater jobs and less waste. Fast Gasket Clear comes in a convenient pressurized package and is effective at temperatures ranging from -60°F to 450°F.