Fast drying. Hard setting. Use on: Cork, metal, plastic, gaskets, pipes & flanges. Resists: Hot & cold water, steam, oil, gasoline, kerosene, grease, mild acids & alkalis. Seals and repairs gaskets. Water and chemical resistant. -65 Degrees F to 400 degrees F. temp. range. Fast drying, hard setting Form-A-Gasket 1 Sealant is designed for sealing rigid materials and flanges, patching holes and joints, and other uses where permanent assembly is desired. Seal freeze plugs; valve covers.