: apel GC100 Polyurethane Spray Foam Insulation ensures precise application with its controlled expansion rate (0.5-1 times its initial volume), preventing overexpansion. It is your go-to solution for various construction applications, specifically formulated for door and window frame installations, crack filling, gap sealing in hollow structures, insulation around electrical and natural gas installations, and foam filler spray for holes. Its user-friendly design, including a quick and easy application with the provided straw, caters to both DIY enthusiasts and professionals. Crafted with a superior polyurethane formula, this foam guarantees immediate and long-lasting results, suitable for indoor and outdoor use. Ideal for use in residential and commercial settings, apel GC100 is a multipurpose waterproof foam designed to meet a range of construction needs.