SMARTCOAT™ 370 UltraSeal is a silyl-modified polyether high performance, multi-purpose, low VOC, single component adhesive/sealant designed for bonding and sealing a wide range of porous and non-porous construction materials. Not intended for use on TPO. SMARTCOAT 370 forms a superior waterproof seal to most roofing materials including metal flashings, copings and skylights. Can be applied to damp or dry surfaces. Paintable by latex-based paints or SMARTCOAT 400 Series Coatings approximately one hour after application. Will not crack, shrink or peel. Easy to gun and tool for quick application.