Wholesale Low Price Stable Foam Structure High Density Shock Resistant PU Polyurethane Foam Universal Sealant for Air Duct Sealing

Wholesale Low Price Stable Foam Structure High Density Shock Resistant PU Polyurethane Foam Universal Sealant for Air Duct Sealing. High Expansion Ratio: Foam expansion ratio reaches 39 times for efficient gap filling. Fast Curing Performance: Tack-free time is 8 minutes with full curing in 24 hours. OEM and ODM Support: Offers customized packaging and free professional design support. ISO Certified Quality: Products meet ISO certification standards for reliability. Versatile Applications: Suitable for construction, woodworking, insulation, and sealing. Multiple Volume Options: Available in 750ml, 500ml, and 300ml sizes. Long Shelf Life: Product shelf life is guaranteed for 12 months. Direct Factory Pricing: Competitive prices from a manufacturer established in 1998.