White Lightning 3006 Original Formula is a siliconized acrylic latex all-purpose caulk that features excellent adhesion to most surfaces including: wood, drywall, glass, masonry, brick, concrete and metal. It is ideal for filling joints and openings around doors, windows, baseboards, trim, siding and vents. Smooth, professional application. Excellent flexibility, elasticity and excellent color retention. Cured caulk is mold, mildew and rust resistant. Water clean-up.