The HW-PSS25 drain sheet which develops on the foundation of HW-PSS18 is made by the high polystyrene (HPIS). The surface is joined to an adhesive-bonded cloth, forms two-sided draining plant, and can store and drain water. Compared with the HW-PSS18, HW-PSS25 can drain water better. It is especially suitable for roof afforestation project in drought, high temperature area.

* Product: HW-PSS25

* Color of under plate: Black / White

* Material quality: High polystyrene

* Quality (g): 950

* Thickness (mm): 25

* Compressive strength (kpa): 150

* Color of geotextile membrane: Black / White

* Material quality: Polyester fiber

* Hole caliber (mm): 0.15

* Runoff rate: 320

* Tensile strength (N): 160

* Quality (g): 150

* Specification of sheet drain (mm): 1200 * 6660

* Flow rate (loss 5 cm) (L/S): 3.0

* Flow rate (Loss 10 cm) (L/S): 4.8