Expanding foam can be used as an insulator, gap filler and for stopping draughts. Foam fillers in various forms of use as a simple hand held or gun grade foam. Perfect with big holes and low expanding foam for smaller gaps. Ideal for pipe fittings and to use as a frame seal for window or door fitting. Easy to use and easy to shape or cut after it cures, any additional foam can be simply scraped off or sanded down.