{"product_id":"3m™-polyurethane-adhesive-sealant-540-black-310-ml","title":"3M™ Polyurethane Adhesive Sealant 540, Black, 310 ml (Case of 12)","description":"\u003cdiv class=\"product-description\" style=\"line-height:1.45; color:#222;\"\u003e \u003cp style=\"margin:0 0 10px 0;\"\u003e \u003cstrong\u003e3M™ Polyurethane Adhesive Sealant 540\u003c\/strong\u003e 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. \u003c\/p\u003e \u003cul style=\"margin:0 0 12px 18px; padding:0;\"\u003e \u003cli\u003eFlexible one-component polyurethane sealant\u003c\/li\u003e \u003cli\u003eLow modulus for sealing between different materials\u003c\/li\u003e \u003cli\u003ePermanently elastic and non-staining\u003c\/li\u003e \u003cli\u003e45–60 minute skin time\u003c\/li\u003e \u003cli\u003ePaintable once tack-free\u003c\/li\u003e \u003cli\u003eExcellent weather resistance\u003c\/li\u003e \u003cli\u003eNo mixing or priming required for most applications\u003c\/li\u003e \u003cli\u003eSuitable for horizontal and vertical sealing applications\u003c\/li\u003e \u003c\/ul\u003e \u003cdetails style=\"margin:0 0 16px 0;\"\u003e \u003csummary style=\"cursor:pointer;font-weight:600;\"\u003e Read More \u003c\/summary\u003e \u003cdiv style=\"margin-top:8px;color:#444;\"\u003e \u003cp\u003e 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. \u003c\/p\u003e \u003cp\u003e 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. \u003c\/p\u003e \u003cp\u003e \u003cstrong\u003eWhy Choose 3M™ Polyurethane Adhesive Sealant 540?\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e 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. \u003c\/p\u003e \u003cp\u003e \u003cstrong\u003eKey Features\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eFlexible Polyurethane Formulation\u003c\/strong\u003e\u003cbr\u003e Provides a permanently elastic seal that can accommodate movement between different materials without compromising sealing performance.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eOne-Component Application\u003c\/strong\u003e\u003cbr\u003e Ready-to-use moisture-curing formulation eliminates the need for mixing and generally does not require priming, helping simplify application and production processes.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003ePaintable\u003c\/strong\u003e\u003cbr\u003e Once tack-free, the sealant can be painted, allowing the finished application to blend with surrounding surfaces.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eWeather Resistant\u003c\/strong\u003e\u003cbr\u003e Provides excellent resistance to weathering, making it suitable for demanding indoor and outdoor sealing applications.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eVersatile Sealing Applications\u003c\/strong\u003e\u003cbr\u003e Suitable for expansion joints, aluminium curtain walls, storefronts, doors, windows and submerged applications across a variety of industries. \u003c\/p\u003e \u003cp\u003e \u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003cbr\u003e Transportation\u003cbr\u003e Metalworking\u003cbr\u003e Construction\u003cbr\u003e General Industry\u003cbr\u003e Expansion Joints\u003cbr\u003e Doors \u0026amp; Windows\u003cbr\u003e Aluminium Curtain Walls \u0026amp; Storefronts \u003c\/p\u003e \u003c\/div\u003e \u003c\/details\u003e \u003ch3 style=\"margin:0 0 6px 0;font-size:1em;font-weight:600;\"\u003e Why Buy from Specialised Welding Products? \u003c\/h3\u003e \u003cdiv class=\"swp-trust-grid\" style=\"margin:0 0 16px 0;color:#666;font-size:0.9em;display:flex;flex-wrap:wrap;gap:12px 24px;\"\u003e \u003cul style=\"margin:0;padding-left:18px;width:calc(50% - 12px);\"\u003e \u003cli\u003e\u003ca href=\"https:\/\/specialisedwelding.co.uk\/pages\/delivery-returns\"\u003eNext Working Day Delivery\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/specialisedwelding.co.uk\/pages\/delivery-returns\"\u003eFree Click \u0026amp; Collect\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003eProfessional-Grade Equipment\u003c\/li\u003e \u003cli\u003eUK Leading Stockist \u0026amp; Supplier\u003c\/li\u003e \u003c\/ul\u003e \u003cul style=\"margin:0;padding-left:18px;width:calc(50% - 12px);\"\u003e \u003cli\u003e\u003ca href=\"https:\/\/specialisedwelding.co.uk\/pages\/service-centre\"\u003eUK-Based Technical Support\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/specialisedwelding.co.uk\/pages\/partners-m-sport\"\u003eSelected by Professionals\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003eSupplying over 1,500 distributors\u003c\/li\u003e \u003cli\u003eEstablished since 1991\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":56182027059585,"sku":"540B310","price":69.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0813\/8037\/6893\/files\/540B310.jpg?v=1787821100","url":"https:\/\/specialisedwelding.co.uk\/products\/3m%e2%84%a2-polyurethane-adhesive-sealant-540-black-310-ml","provider":"Specialised Welding Products","version":"1.0","type":"link"}