Expanding foam sealants, also known as polyurethane (PU) foam, are versatile products used for various purposes in construction and home improvement. Here’s what you need to know:
Insulation and Gap Filling:
Expanding foam cures when it comes into contact with moisture. It’s commonly used as a gap-filling, adhesive sealant to fix, fill, and insulate against noise, cold, and drafts.
Its excellent insulation properties make it effective for sealing gaps around doors, windows, and other building substrates1.