This Geocel gutter sealant is a single-component, elastomeric, semi-self-leveling tripolymer sealant designed to keep out air and moisture. The tripolymer sealant has excellent adhesion to many surfaces even while the surface is damp or oily. The 2320 seam sealant can be painted over and can be cleaned up easily without any hassle. Application materials include asphalt shingles, brick, masonry, concrete, glass, vinyl, wood, sheet metal, and other common building substrates.