Waterproof backing boards are specialized waterproofing materials used in construction and renovation projects. They are typically made from high-molecular polymers such as polyvinyl chloride (PVC), high-density polyethylene (HDPE), and polypropylene (PP) through extrusion molding or other processes. Their main function is to form a robust waterproof barrier on the building surface, effectively preventing moisture from penetrating into walls, floors, or other building structures, thus protecting the building from moisture erosion.
Waterproof backing boards are made from high-molecular polymers, forming a strong barrier to prevent moisture penetration and protect the building structure. Suitable for bathrooms, kitchens, basements, and other applications, they offer excellent waterproofing performance, physical strength, and ease of construction, extending the building's lifespan.