Mortite is the original name in Do-It-Yourself caulking, and it"™s still famous for its quality and versatility. 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 "œplugger-upper."� • 19 oz• 90 feet• Color: Woodtone• For use with wood, plastic, metal, masonry, glass and concrete• Forms weatherproof seal on porous and non-porous surfaces• No caulking gun needed just press in place with your fingrertips• won''t harden so it seals tight, yet can be easily removed.