3M™ Polyurethane Adhesive Sealant 540, Black, 310 ml (Case of 12)

3M™ Polyurethane Adhesive Sealant 540 is a flexible, one-component polyurethane sealant designed for demanding sealing applications across transportation, metalworking, construction and general industry. Its low-modulus formulation provides permanently elastic bonds between different materials, while moisture-curing technology simplifies application without the need for mixing or priming in most applications. Supplied in a 310ml black cartridge, it offers excellent weather resistance and can be painted once cured. Flexible one-component polyurethane sealant Low modulus for sealing between different materials Permanently elastic and non-staining 45–60 minute skin time Paintable once tack-free Excellent weather resistance No mixing or priming required for most applications Suitable for horizontal and vertical sealing applications Read More 3M™ Polyurethane Adhesive Sealant 540 is formulated for applications where a flexible, durable seal is required. Its low-modulus formulation allows the sealant to accommodate movement between different materials while maintaining a permanently elastic bond, making it suitable for a wide range of industrial and construction applications. The one-component, moisture-curing formulation is ready to use and requires no mixing, helping simplify production and installation. Once applied, the sealant develops a tack-free surface in approximately one hour and can then be painted, while its excellent weather resistance makes it suitable for both indoor and outdoor applications. Why Choose 3M™ Polyurethane Adhesive Sealant 540? 3M™ 540 combines ease of application with durable, flexible sealing performance. It is suitable for sealing expansion joints, aluminium curtain walls, storefronts, doors and windows, as well as applications where a reliable seal is required in transportation, metalworking and general industry. Key Features Flexible Polyurethane Formulation Provides a permanently elastic seal that can accommodate movement between different materials without compromising sealing performance. One-Component Application Ready-to-use moisture-curing formulation eliminates the need for mixing and generally does not require priming, helping simplify application and production processes. Paintable Once tack-free, the sealant can be painted, allowing the finished application to blend with surrounding surfaces. Weather Resistant Provides excellent resistance to weathering, making it suitable for demanding indoor and outdoor sealing applications. Versatile Sealing Applications Suitable for expansion joints, aluminium curtain walls, storefronts, doors, windows and submerged applications across a variety of industries. Ideal For: Transportation Metalworking Construction General Industry Expansion Joints Doors & Windows Aluminium Curtain Walls & Storefronts Why Buy from Specialised Welding Products? Next Working Day Delivery Free Click & Collect Professional-Grade Equipment UK Leading Stockist & Supplier UK-Based Technical Support Selected by Professionals Supplying over 1,500 distributors Established since 1991