PM 3SW-GEOTEX

Drainage membrane

The three-layer PM 3SW-GEOTEX protection and drainage system is a cost-effective addition to polymer modified bituminous thick coatings (PMBC) for exterior basement walls. Thick coatings act as a permanent waterproofing, filling in cracks and joints, but for backfilling or subsequent soil settling, they can be extremely sensitive to impacts and pressure.

The result: elaborate time-intensive and thus cost-intensive safeguarding work for the backfilling process and the risk of later complaints. PM 3SW-GEOTEX solves multiple problems as a complete, multi-layer protection and drainage system for below-ground structures with PMBC or other waterproofings.

PM 3SW-GEOTEX consists of a dimpled membrane, a rugged geotextile and a sliding foil on the back side. The sliding film distributes the effective earth pressure and acts as a sliding surface in case of any settling of the filling soil. The protective effect meets the requirements of DIN 18533. The good water draining capacity of PM 3SW-GEOTEX is multiple times higher than required by drainage standard DIN 4095.
PM 3SW-GEOTEX has a compressive strength of 170 kN/m². The drainage sheet is available in many different length and width variations.

Dimpled membrane	HDPE
Sliding film	LDPE approx. 200 μm
Geotextile	polypropylene
Total weight	approx. 730 g/m²
Dimple height	8 mm
Compressive strength	approx. 170 kN/m² = 17 t/m²
Water flow capacity in the plane	approx. 2,24 l/s·m at 20 kPa rigid/soft
Roll length	12,5 / 15 / 20 m
Roll width	0,5 / 0,75 / 1,0 / 1,5 / 2,0 / 2,5 m
Air volume between the dimples	approx. 5,5 l/m²
Temperature resistance	–30 °C to +80 °C
Chemical properties	chemical-resistant
Biological properties	resistant to bacteria and fungi, rot-resistant, root-resistant
Physiological properties	safe for drinking water
Characteristic opening width	approx. 77 μm