Frost King's Mortite is the name in Do-It-Yourself fingertip caulking, and it's still famous for its quality and versatility and ease of use

Sure, Mortite Weatherstrip and Caulking Cord will seal windows effectively

But it's also widely used as a gasketing material, sound deadener insect barrier, crack filler, and all-around "plugger-upper

" It's available in classic grey or in woodtone to blend with brown or wood finishes