CAULKING

Originally posted by GLBCamper Originally posted by David UPDATE...It looks like it they have changed the name (says original formula) Polyseamseal Which exact product do you use on exterior windows? The link goes to all of loctite sealants.

Good question! The last time that I bought some, it was still labeled "Polyseamseal" All Purpose. If I were buying today, I would likely purchase the "Premium". I use it on window frame to gel coat. I also use it around the side marker lights, porch light, etc. I don't have anything negative to say about the stuff. It seems to have good adhesion, resists mildew, remains somewhat flexible and is easy to work with. Clean up with soap & water.

In theory, there is a rubber gasket sealing the window frame to gel coat mating surfaces. However, I like to take the "belt and suspenders" approach and keep a thin bead of caulk around them.