One-part polyurethane multipurpose adhesive sealant Description U-Seal 540FC is a one-component, gun-grade, non-sag polyurethane high modulus multipurpose sealant. It cures under the influence of atmospheric moisture to form a high performance compound with permanent elasticity and resistance to ageing and weathering. Advantages  Bonds and seals at the same time  Permanently elastic over a wide range of temperatures; accommodates joint movement of ±25%  Non-sag consistency with short cut-off string  Non-sticky / does not pick up dirt  Easy to gun with excellent tooling consistency  Performant adhesion on metal, plastic and construction materials.  Non-staining  Vibration and sound dampening properties  Allows equalised stress transfer due to permanent elasticity.  Good resistance to ageing, weathering and cleansing agents, sea water, lime water  Over-paintable with many water and solvent based paints (preliminary tests recommended) Areas of Application  Sealing and bonding between different materials  Elastic bonding between metal, plastic, glass and other materials  Replaces rivets and mechanical fasteners  Sealing joints in vertical and horizontal applications  Weatherproofing of joints between brickwork, block-work, masonry, wood, concrete, metal frames.  Metal roof and gutter sealing