BentIzol® GM textured geomembrane — polyethylene membrane with texture
Polyethylene geomembrane textured on one or both sides for anti-seepage liners of landfills, tailings storage facilities and dams.

The smooth BentIzol® GM is made of virgin high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE) and corresponds to a type 1 geomembrane. The material is resistant to acids, alkalis, petroleum products and oils in the pH 0.5–14 range, to ultraviolet radiation and to repeated freezing and thawing, is flexible at −60 °C, and the HDPE membrane has an elongation at break of at least 700 %. Sheets 5–6 m wide in rolls of 50 or 100 m are used at MSW landfills, tailings storage facilities, in canals, reservoirs and dams.
| Manufacturer | BentIzol — OOO “BentIzol”, Vvedenskoye |
|---|---|
| Type | roll materials and membranes |
| Use | hydraulic structures and dams, tanks and pools |
| Base | smooth geomembrane of virgin high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE) |
| Packaging | rolls 50 or 100 m long, 5–6 m wide; roll weight from 118 to 855 kg (across all GM types) |
| Key properties | HDPE: density 0.940 g/cm³; nominal thickness 0.75 / 1.0 / 1.5 / 2.0 / 2.5 / 3.0 mm; tensile strength at break at least 20 / 27 / 40 / 53 / 67 / 80 kN/m; elongation at break at least 700 %; yield strength at least 11 / 15 / 22 / 29 / 37 / 44 kN/m at an elongation of at least 12 %; puncture resistance at least 240 / 320 / 480 / 640 / 800 / 960 N; tear resistance at least 93 / 125 / 187 / 249 / 311 / 374 N; strength loss after 30 freeze–thaw cycles no more than 10 %, after 90 days of ageing at 85 °C no more than 45 %, after 400 h of UV no more than 15 %; flexibility on an R5 mandrel at −60 °C without cracks; chemical resistance pH 0.5–14 (acids, alkalis, petroleum products, oils); UV resistance; from −60 to +60 °C, repeated freezing and thawing; service life at least 50 years |
| Layer thickness | 0.75–3.0 mm |
| Standards | STO 87299967.005-2021; complies with GOST R 56586-2015; certificates of conformity under GOST R and under the STO |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Polyethylene geomembrane textured on one or both sides for anti-seepage liners of landfills, tailings storage facilities and dams.
Drainage geocomposite with geotextile on both sides of the geonet for draining water from underground parts of buildings, tunnels and roads.
Bentonite mat in rolls on activated sodium bentonite for anti-seepage liners of landfills, ponds and canals; pressure up to 7 atm.
A bentonite mat with a factory-bonded weldable geomembrane forms a double anti-seepage liner for sites in difficult hydrogeological conditions.
Bentonite mat with a polymer additive to the bentonite for foundations, basements and tunnels; permeability coefficient no more than 0.7×10⁻¹¹ m/s.
Lightweight bentonite mat of the SAB series for anti-seepage liners of ponds, canals and landfills; a 5 × 40 m roll weighing 880 kg.