China Factory 750ml Multipurpose PU Foam Sealant for Building Joints and Crack Filling Core Product Advantage 750ml All Season PU Foam Sealant offers a practical solution for construction material importers, wholesalers and professional distributors. This one-component polyurethane expanding foam combines strong adhesion, multipurpose applications and convenient packaging. It supports installation in temperatures as low as -10°C. Practical Function Design The product provides