750ml White Pu Foam Spray Sealant Silicone-Based Waterproof Construction for Filling for Gap Mounting for Packing Construction Polyurethane Foam: Provides durable bonding and sealing for various applications. One Component Adhesive: Easy to use and apply with minimal effort. 750ml Volume: Sufficient quantity for multiple projects. Long Shelf Life: 12 months ensures extended usability. Flexible Application: Suitable for construction, leather, and electronic uses. Guangzhou