Contact Platform Support
Help CenterBuilding Waterproof Polyurethane Sealant, Non-sagging Two-component Polysulfide Sealant, Bridge and Tunnel Joint Filler
Product Spotlights
Related Products
-
Two-component Polyurethane Sealant, Airport Runway Road Joint Filler, and Pavement Expansion Joint SealingUS$ 4 - 5MOQ: 50 Units -
One-component Self-leveling Silicone Polyurethane Sealant Joint Filler for Airport Runways and Ballastless TracksUS$ 4 - 5MOQ: 50 Units
-
Two-component Polyurethane Sealant for Construction, Polysulfide Sealing and Caulking PasteUS$ 4 - 5MOQ: 50 Units
-
National Standard Barreled and Boxed Two-component Polysulfide Sealant, AB Two-component Joint Polyurethane SealantUS$ 4 - 5MOQ: 50 Units
-
Two-component Polysulfide Sealant, Group AB, Polyurethane Sealant, Durable and Airtight, Suitable for Large-scale Water Conservancy ProjectsUS$ 4 - 5MOQ: 50 Units
This single-component moisture-curing polyurethane (PU) sealant is a solvent-free, environmentally friendly sealing material tailored for indoor and outdoor structural gap treatment. Unlike silicone sealants with weak paint compatibility, this PU sealant supports overcoating with all types of water-based and oil-based paints after full curing, solving the common repainting dilemma for construction gaps. It achieves initial curing within 2 hours at 23℃ and 50% relative humidity, and complete deep curing within 72 hours, with stable performance across -40℃ to 90℃ extreme temperature fluctuations. It delivers robust bonding performance on diversified substrates including concrete, aluminum alloy, galvanized steel, PVC, wood and stone, with no primer needed for over 90% of conventional building materials, cutting on-site construction time and auxiliary material costs. With excellent weathering and anti-aging properties, it resists long-term UV radiation, acid rain corrosion and seawater splash, avoiding cracking, yellowing or peeling within 15 years of outdoor service. Its high elongation rate of 350% enables it to absorb structural expansion, shrinkage and slight seismic displacement of buildings, effectively blocking water penetration, wind ingress and dust infiltration. It is widely used in expansion joints of concrete roads, curtain wall side gaps, automotive body welding seams, container edge sealing and prefabricated building assembly gaps. For construction precautions, users must clean substrate surfaces of dust, oil and loose residues before application; low humidity below 30% will slow curing speed, so humidifying the construction surface is recommended in dry seasons. Free of formaldehyde and toxic volatile organic compounds, it complies with EU REACH environmental standards, suitable for residential, commercial and marine engineering scenarios
Send Inquiry to This Supplier
You May Also Like
-
Polyurethane Building Sealant, High Modulus, for Basement, Pipe Gallery, Tunnel, and Bridge Settlement Joint CaulkingUS$ 4 - 5MOQ: 50 Units
-
Single Component Polyurethane Sealant Weatherproof Waterproof Joint Filling for Construction Curtain Wall Gap SealingUS$ 4 - 5MOQ: 51 Units
-
High Elastic PU Construction Sealant Anti-Crack Bonding Adhesive for Concrete Road Expansion Joint RepairUS$ 3.9 - 5MOQ: 51 Units
-
UV Resistant Polyurethane Sealant Paint Overcoatable Sealing Glue for Prefabricated Building Assembly JointsUS$ 3.9 - 5MOQ: 51 Units
-
Moisture Curing Polyurethane Sealant Corrosion Resistant Waterproof Glue for Shipping Container Edge SealingUS$ 3.9 - 5MOQ: 51 Units
-
Low Temperature Resilient PU Sealant Anti-Leakage Bonding Sealant for Automotive Body Welding Gap FillingUS$ 3.9 - 5MOQ: 51 Units
-
Non-toxic REACH Compliant Polyurethane Sealant Dustproof Sealing Glue for Indoor Wood and Stone JointsUS$ 3.9 - 5MOQ: 51 Units
-
High Elongation PU Joint Sealant Anti-Seismic Deformation Adhesive for Exterior Wall Structural Gap WaterproofingUS$ 3.9 - 5MOQ: 51 Units
-
Primer-Free Polyurethane Sealant Strong Adhesion Glue for Aluminum Alloy and Galvanized Metal SealingUS$ 3.9 - 5MOQ: 51 Units
-
Acid Rain Resistant Polyurethane Sealant Anti-Aging Sealing Adhesive for Outdoor Bridge Joint MaintenanceUS$ 3.9 - 5MOQ: 51 Units