
Swellable Waterstop for Construction Joints in Concrete. 400% Swelling Capacity: Expands up to 400% of original volume to seal hairline cracks and ensure waterproofing. 5-Year Warranty: Comprehensive coverage for mechanical defects with free parts and labor for 5 years. MSDS Certified: Meets international safety standards for environmental compliance and global procurement. Superior Elasticity: Vulcanized rubber adapts to structural settlement and thermal expansion without losing seal. 50-Year Service Life: Resistant to aging and corrosion, matching the durability of the concrete structure. Easy Installation: Lightweight and flexible; can be cut, spliced, or fixed with nails and adhesive tape. Wide Application Scope: Suitable for foundation walls, slabs, pipe connections, and various underground engineering. Environmentally Friendly: Non-toxic and safe for drinking water projects with no harmful substance release.