
General Use A3 Polyurethane Adhesive Sealant PU Foam for Door Window Insulation. Superior Expansion & Adhesion: Excellent adhesion to most building materials with superior expansion and filling capacity. Moisture-Curing Technology: One-component polyurethane foam that cures via moisture to form a rigid, waterproof seal. Multi-Application Versatility: Ideal for door/window insulation, gap filling, and sealing joints in construction and woodworking. Long Shelf Life: Guaranteed shelf life of 12 months from the date of manufacture when stored correctly. Professional R&D Support: Backed by a dedicated R&D center and collaboration with Anhui University for continuous innovation. High Production Capacity: Three plants ensure a daily production capacity of 180 tons for fast delivery. Comprehensive Certifications: Products certified with CE, ISO9001, ISO14001, SGS, and CNAS standards.