
New Stock Arrival Gap Filling Construction Polyurethane Foam Sealant for Air Duct Sealing. OEM and ODM Support: Customized packaging and free professional design support available. Multiple Volume Options: Available in 750ml, 500ml, and 300ml sizes. High Expansion Ratio: Foam expansion ratio reaches 39 times for effective gap filling. Fast Curing Performance: Tack-free in 8 minutes and fully cured within 24 hours. ISO Certified Quality: Products meet ISO standards for reliability and safety. Long Shelf Life: Guaranteed shelf life of 12 months for storage stability. Direct Factory Pricing: Competitive prices from a manufacturer established in 1998. Comprehensive Technical Docs: MSDS and TDS provided in multiple languages for customs clearance.