You have no items in your shopping cart.
CETCO BENTOSEAL® is a versatile, high-performance mastic formulated to provide reliable waterproofing in various applications. Combining sodium bentonite and butyl rubber, it forms a robust seal that expands upon contact with water, offering enhanced protection against water ingress. Its thick, viscous consistency allows for easy trowel application, ensuring it bonds to a broad range of surfaces with ease. Whether used as a surface preparation or a sealant, BENTOSEAL® delivers lasting waterproofing solutions in conjunction with other CETCO waterproofing membranes.