Geosky® Drainage Board

There are two series of drainage board/ dimple membrane: roller material & sheet material. The roller material includes three types: thermal melting, lapping & self-adhered. The molding process adopts special technology to press the plastic sheet material with the closed convex columnar shell to form concave-convex film. The shell is continuous and has three-dimensional space and certain supporting height. At edge processing, thermal sticking butyl rubber is added to the edge. Covered with geotextile at the top of the shell, it can be used for water seepage, drainage and storage. It is also known as: self-adhesive PE drainage board, drainage plate, drainage protective board, water treatment board, plastic concave-convex drainage board, plastic inter-layer board.