High-performance sealing Excellent UV resistance Permanently elastic to allow joint movement 40-60 minute skin time; paintable when wet Silane Modified Polymer (SMP) adhesive sealant The 3M™ Adhesive Sealant 740 UV is a single-component, moisture-curing, elastomeric, isocyanate-free sealant. This cosmetic sealant offers exceptional UV resistance and long-term flexibility. The 3M™ Adhesive Sealant 740 UV is permanently elastic and is capable of bonding dissimilar materials, offering long-lasting bonds and design flexibility.