PVC Geomembrane Liner Material

Technical Parameters

Material Selection Guide

Selection criteria must focus on the thickness needed to withstand site-specific settlement and the required chemical compatibility.

• Fluid Type: If containing aggressive chemicals (e.g., highly acidic water), request specific chemical compatibility test data for the material formulation.

• Required Thickness: Use thicker gauges (1.0mm to 1.5mm) for applications with significant ground movement or high risk of puncture (e.g., landfill lining).

• Installation Method:

  For complex shapes, a highly flexible material with a smooth finish is easier to lay and weld.

Manufacturing and Tailoring

The production is focused on maintaining film purity, consistency, and a defect-free surface.

• Thickness Precision:

  Advanced calendering ensures strict tolerance control for the film thickness, crucial for performance validation in engineering projects.

• Batch Testing: Every production run undergoes rigorous QC testing for tensile strength, elongation, and puncture resistance according to ASTM or ISO standards.

• Custom Panel Fabrication: We offer factory pre-fabrication services, welding multiple sheets into large panels (e.g., up to 20×20 meters) to minimize expensive field welding.

Deployment FAQ

• Q: Is a special substrate or underlay required before installing the PVC geomembrane?

  A: Yes, a non-woven geotextile fabric underlay is typically required to protect the geomembrane from sharp objects (e.g., rocks) in the underlying soil.

• Q: How long is the lifespan of this liner when buried?

  A: When protected from direct UV and environmental exposure (i.e., buried), high-quality PVC geomembranes can have a projected service life exceeding 50 years.