Watertite Flex Primer & Finish Matte is a high-performance waterproofing solution designed for both interior and exterior surfaces. This 5-gallon container provides excellent coverage and durability, making it ideal for protecting surfaces against moisture and water damage. The matte finish ensures a smooth application, while the flexible formula allows for expansion and contraction, preventing cracking. Suitable for use on concrete, masonry, and wood, this primer meets ANSI standards for waterproofing and is perfect for basements, foundations, and other high-moisture areas.