Plastic drainage boards are manufactured by pressing plastic substrates made from polystyrene (HIPS) or polyethylene (HDPE) into conical bosses or reinforced ribs (or hollow cylindrical porous shapes). Through continuous innovation and research, the materials have undergone significant improvements and changes, now produced from polyvinyl chloride (PVC) with greatly enhanced compressive strength and overall flatness. Available in widths of 1 to 3 meters and lengths of 4 to 10 meters or more.

Our plastic drainage boards are available in two series: rolled and sheet materials. They are shaped using a special process that presses the plastic sheets into a closed, convex cylindrical shell, creating a concave-convex membrane. The shells are continuous, providing a three-dimensional space with a certain height of support. During the production of the edges, butyl rubber strips are heat-sealed. The top of the shell is covered with a geotextile filter layer, used for infiltrating, draining, and storing water. Also known as: overlap adhesive drainage boards, drainage and drainage boards, drainage protection boards, water filter boards, plastic concave-convex drainage boards, and plastic sandwich boards. Product specifications are divided into those for square greening and those for basements, with H20 and H25 sizes available for selection.

Commonly used drainage boards in construction include: plastic drainage boards, retention drainage boards, roll drainage boards, waterproof drainage boards, composite drainage boards, three-dimensional drainage boards, sheet drainage boards, etc.