The offered Bondex J7G Waterproofing Chemical is used to protect various surfaces from water penetration & damage. It creates a barrier that prevents water from seeping into the surface, & can also protect against moisture, mildew, & mold. It can be applied to a variety of surfaces, including concrete, wood, metal, & fabrics. Bondex J7G Waterproofing Chemical can be applied as coatings, sprays, or membranes, depending on the surface and the desired level of protection.