
Professional Manufacturer Sprayable PU Spraying Polyurethane Foam Sealant for Air Duct Sealing. OEM and ODM Support: Full customization including packaging and design support available. Multiple Volume Options: Available in 750ml, 500ml, and 300ml sizes. High Expansion Ratio: Foam expansion ratio reaches 39 times for efficient gap filling. Fast Curing Time: Tack-free in 8 minutes and fully cured within 24 hours. ISO Certified Quality: Products meet international ISO standards for safety and performance. Multi-Function Application: Ideal for insulation, sealing, bonding, and soundproofing in construction. Long Shelf Life: Guaranteed stability for 12 months from production date. Professional Manufacturer: Direct factory with R&D center established since 1998.