PP composite HDPE drainage board is manufactured with an exclusive co-extrusion process to get a dimpled membrane made of high density polyethylene (HDPE) drainage core, then heat-bonded polypropylene (PP) non-woven geotextile. The HDPE drainage core with a specially designed dimple pattern provides high compressive strength and drainage capacity, thus preventing the build-up of hydrostatic pressure against the waterproofing layer. It also acts as a highly effective protection layer for the waterproofing material during backfill operations. The second layer geotextile retains soil or sand particles as well as freshly placed concrete or grout, allowing filtered water to pass into the drainage core. This is a multifunctional material that can form channels for water and gas.

Features     
- Outstanding compressive strength and impact resistance, tough and durable,
- Excellent rot-proof and highly water permeable and anti-clogging of the geotextile
- HDPE drainage core allows incoming water to freely drain to the footing perimeter
- Dimple pattern, provides high-compressive strength, acts as a highly effective protection layer for the waterproof          material during backfill
- Resistance to chemical and environmental stress cracking; Installation fast and easy 

Uses     
Waterproofing system for road, tunnel and underground, basement of buildings, roof garden, plaza decks, earth-sheltered  homes, commercial buildings, retaining walls, underground parking, and other site drainage.

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Application     


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