DAP Gasket Maker is a one component, acetoxy cure, 100% RTV silicone rubber sealant that is ideal for mechanical repair and household use. It can be used for making gaskets on engine parts, cars, motorcycles, appliances, power yard equipment and more. It provides a waterproof seal, stays flexible and won't crack, crumble or dry out. Once cured, it is unaffected by temperature extremes (-40+ALA-F to 400+ALA-F).