Drainage board is a new research and development of geosynthetics, it is mainly used for some roof drainage, roof greening, roof gardens, he is mainly made of polystyrene (HIPS) or polyethylene (HDPE) as the raw material production and manufacturing, this roof storage and drainage board is currently on the market for sale of a lot of businessmen, but most of the dealers, but high quality and inexpensive drain boards Manufacturers are not many.
Drainage board price in a few dollars to more than a dozen dollars have, not a sentence can be expressed clearly, according to the material, specifications, quantity to determine. How to choose a good quality storage drainage board manufacturers also have the knack:
1, "look": refers to the surface to observe the following color of the drainage board purchased, the new material out of the plastic drainage board appearance and pattern delicate, good quality drainage board shiny. Recycled waste made out of drainage board, brightness is darker, the surface is not smooth, the material is not pure.
2, "lifting": refers to the hand feel the weight, poor quality drainage board is often lighter than good quality drainage board, good quality drainage board is more solid, the texture is also more stable.
3, "fold": refers to the purchase of drainage board can be appropriate to bend the drainage board, if it is easier to break, then the drainage board is more inferior, and vice versa, the quality of this type of drainage board will be slightly better.
4, "pressure": refers to the appropriate force to squeeze the drainage board to be purchased, recycled waste made out of the drainage board is more brittle, but also weaker. Drainage board manufacturers to make the drainage board toughness is better, the hardness is also moderate, so if you choose the drainage board is softer and more brittle that is more likely to be the quality of the drainage board is more substandard.
Hope to help you, thank you, hope to adopt.