Permatex Aviation Form-A-Gasket Sealant by Permatex is a slow-drying, non-hardening brush-top sealant designed for both aviation and automotive applications. This versatile sealant performs well across a wide temperature range from -65°F to 400°F, ing excellent resistance to gasoline, oil, and grease. It is i for close-fitting machined surfaces, sealing hoses, and dressing solid gaskets. The product comes in a convenient 4 oz. bottle, making it easy to apply precisely where needed for reliable sealing performance. Model Number: 80019