Polyurethane Sealant 3M™ 540 3M™ The 3M™ polyurethane sealant is a single-component product used for bonding, sealing, and waterproofing in various industrial sectors, including automotive, construction, and marine. This sealant is known for its strong adhesion to numerous surfaces such as metal, wood, glass, concrete, and plastics. Once applied, it cures by reacting with moisture in the air to form a flexible, durable joint that is resistant to vibrations, weathering, and UV rays. This sealant is particularly valued for its ability to create durable joints that remain flexible even under harsh conditions. It is commonly used for tasks such as joint sealing, panel bonding, and part assembly. Its single-component formula makes it easy to use, with no need for prior mixing. Learn more
Mastic-colle STP Sikaflex® 521 Sika Sikaflex® 521 by Sika is a high-performance STP adhesive and sealant designed for industrial bonding and sealing applications. Based on Silyl Terminated Polymer technology, it delivers excellent multi-material adhesion on metal, aluminum, plastics, wood, and glass—often without primer. With strong UV and weather resistance, it is ideal for panel bonding, vehicle body assembly, container manufacturing, HVAC systems, and metal fabrication. Low odor, solvent-free, and paintable, this versatile adhesive sealant provides durable, flexible, and reliable performance for demanding industrial environments. Learn more
Mastic-colle PU Sikaflex® 252 Sika Sikaflex® 252 by Sika is a high-strength polyurethane (PU) adhesive sealant engineered for structural bonding in transportation and industrial applications. Known for its outstanding mechanical strength and excellent adhesion to metal, aluminum, galvanized steel, wood, and plastics, it is ideal for bonding sandwich panels, truck bodies, commercial vehicles, trailers, and industrial assemblies. Its resistance to vibration and dynamic stress makes it suitable for load-bearing structures and demanding environments. Easy to apply and paintable after curing, this PU adhesive ensures durable, secure, and long-lasting bonding performance. Learn more