Prevents air and moisture from passing through cracks and joints. Provides flexibility to resist expansion and contraction without cracking. Paintable with latex and oil-based paints. For caulking and sealing windows and door perimeters, siding and trim,pipes, moldings vents, corner joints, baseboards, and ducts. Adheres to wood, brick, glass, metal, plaster, drywall, and painted surfaces. Superior quality, moisture/mildew resistant, highly flexible and durable. Exceeds ASTM Specifications C-834. Covers55 lin. ft. at a 3/16 in dia. bead.