
Selling High Elasticity Sealing Low-Voc PU Door Polyurethane Foam Sealant for Roof Gap Filling. High Expansion Ratio: Foam expansion ratio reaches 39 times for effective gap filling. Fast Curing Time: Tack-free in 8 minutes and fully cured within 24 hours. OEM and ODM Support: Customized packaging and free professional design support available. ISO Certified Quality: Products meet ISO standards for safety and performance. Multi-Volume Options: Available in 750ml, 500ml, and 300ml sizes. Long Shelf Life: Product remains stable for 12 months when stored properly. Professional Manufacturer: Direct factory with own R&D center and production facility since 1998. Comprehensive Documentation: MSDS and TDS provided in multiple languages for customs clearance.