This 540 polyurethane adhesive sealant from 3M™ is highly flexible and ideal for bonding and sealing materials which have different coefficients of thermal expansion. * Shore A hardness of 40 * Ideal for seam sealing * Great for gap filling * Grey colour * Supplied in cartridges of 310ml * Manufacturer's part 7000070298 https://elecena.pl/product/29139026/3m-polyurethane-adhesive-sealant-540-grey-310ml 2025-07-26 https://elecena.pl/product/29139026/3m-polyurethane-adhesive-sealant-540-grey-310ml 2026-05-11 https://elecena.pl/product/29139026/3m-polyurethane-adhesive-sealant-540-grey-310ml 2026-06-02 https://elecena.pl/product/29139026/3m-polyurethane-adhesive-sealant-540-grey-310ml 2026-07-18