Masonry Direct is proud to partner with BASF to offer their best construction sealants. These sealants are used around openings, including windows and doors, in order to form a moisture barrier to prevent cracks and other structural issues from forming. This masonry sealant adheres to most types of construction materials, such as metal, concrete, and wood. Great for use in expansion joints, parapets, vinyl siding, and so much more. This sealant product is great for use by engineers, masons, construction professionals, architects, contractors, and the DIY homeowners. When shopping for the best construction and masonry supplies, shop Masonry Direct first!