WHAT SEALING MATERIAL SHOULD I USE?

There is a wide and confusing choice, and no one material will do for every job. The questions to ask are: What will it stick to? Can I paint it? How long will it last? You won't be saving money if you have to replace the material often; some caulking materials will harden and crack after only a few months. (For a detailed look at different materials see the section on Caulking which can be found on the Nuts & Bolts section of the home page.)