Specially formulated for sealing glass in wood, metal, and aluminum windows. Latex glazing compound may also be used to patch cracks and gouges, fill voids in vertical concrete, or for repairing surface splits or knots in lumber. Ultra smooth, fast, and easy to use. Specially designed tip for trouble-free application. Fast drying. Water clean up. Paintable in 30 minutes and protected against mildew and rust. Seals watertight for long-lasting all-weather protection.