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PVC Geomembrane

Overview
The PVC geomembrane is a watertight macromolecular material of high quality. We begin with PVC resin and add plasticizer, anti-ultraviolet agents, inhibitors, and stabilizers and then use extrusion molding to finish it. This waterproofing membrane is stable with a low thermal expansion coefficient, ideal for applications which require long-term exposure to high temperatures.

Performance Features
1. Our PVC geomembrane has a long service life and won't wear out with age.
2. Apart from having a high tensile strength and elongation, this geomembrane liner changes minimally during high temperatures.
3. At low temperatures, this PVC pond liner retains its flexibility.
4. The PVC geomembrane is waterproof and won't be punctured or torn by plant roots.
5. Construction is extremely easy and the lapping joints can be welded for high strength.

Classification
1. This landfill liner comes in 3 types.
N type: Without composite layer
L type: With single fiber composite side
W type: With interior fabric layer
2. According to physical and chemical properties, the PVC geomembrane contains Class I and Class II.

Specification
Length: 10m, 15m, 20m
Thickness: 1.2mm, 1.5mm, 2.0mm
Width: 1000mm, 1500mm, 2000mm

Product Standard
GB12952-2003

Key Parameters of the PVC Geomembrane
No. Item I type II type
1 Tensile strength, MPa, ≥ 8.0 12.0
2 Elongation at break, ≥ 200 250
3 Size change during heat treatment, %, ≤ 3.0 2.0
4 Bending ability at low temperature -20℃, no flaw -25℃, no flaw
5 Perforation resistance Waterproof Waterproof
6 Watertightness Waterproof Waterproof

Application Instructions
1. Mechanical fixing or bonding methods can be used to connect the PVC geomembrane to basement layers. Joints of the composite geomembrane should be welded. For single-seam welding, effective welding width shouldn't be less than 25mm. Double-seam welding width is 2×10mm plus cavity width.

2. For single-layer construction, the thickness of PVC geomembrane on roofs shouldn't be below 1.2mm. For basements, the PVC thickness shouldn't be less than 1.5mm.

3. The N and W types in Class II can be used as waterproof layers for Class I and II roofs, basements and planted roofs.

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