Product Range
StrataLiner™ is available in widths of up to 8 m (26 ft) and thicknesses ranging from 0.75 mm to 3 mm.
It is manufactured in three surface configurations:
- Smooth surfaces on both sides
- Textured surface on one side
- Textured surfaces on both sides
The smooth variant provides a uniform surface for general containment applications. Textured variants provide enhanced interface friction for slopes and other applications where increased stability is required.
Material & Composition
- Manufactured from high-density polyethylene (HDPE) resin
- Carbon black incorporated for UV resistance
- Antioxidant and heat-stabilizer package formulated to resist long-term oxidative degradation
- Virgin raw materials, free of post-consumer recycled content
Mechanical & Chemical Performance
- High tensile strength and puncture/tear resistance characteristic of HDPE geomembranes
- Broad chemical resistance to aromatic and halogenated hydrocarbons, acids, alkalis and industrial leachates
- Stress crack resistance and oxidation induction time (OIT) monitored as standard batch-testing parameters
- Dimensional stability across temperature cycling and prolonged exposure
Manufacturing
PRECISION MANUFACTURING. CONTROLLED QUALITY. CONSISTENT PERFORMANCE.
StrataLiner™ is manufactured using precision flat-cast extrusion technology, from carefully selected virgin HDPE resin.
Our manufacturing process combines automated monitoring, controlled texturing and multi-stage quality checks to deliver consistent thickness, surface quality and product performance across every roll.
How Is StrataLiner™ Manufactured?
01 — Selected Virgin HDPE Resin
StrataLiner™ is manufactured from carefully selected virgin HDPE resin, formulated with carbon black, antioxidants and other stabilizers to support UV resistance and long-term durability.
02 — Precision Flat-Cast Extrusion
The HDPE formulation is processed using precision flat-cast extrusion technology, providing controlled and consistent membrane thickness across widths of up to 8 m (26 ft).
03 — Automatic Thickness Control
An X-ray scanning system continuously monitors membrane thickness during production, providing real-time monitoring and adjustments to maintain thickness consistency.
04 — Controlled Surface Texturing
For textured variants, StrataLiner™ uses a spray-on texturing method to create the required surface texture while ensuring that minimum membrane thickness is not compromised.
05 — Spark Testing
A standard spark-testing system is used to identify pinholes and potential discontinuities, supporting the integrity of the finished geomembrane.
06 — Multi-Stage Quality Control
Quality checks are carried out at multiple stages of production and on every batch to maintain consistent manufacturing quality from roll to roll.
07 — In-House Laboratory Testing
Our GAI-LAP-certified laboratory supports in-house testing of mechanical properties and long-term durability parameters, including ESCR, UV aging, HP-OIT and other relevant tests.
Testing & Quality Control
Mechanical Performance
StrataLiner™ is tested for key mechanical properties associated with HDPE geomembrane performance, including:
- Tensile strength
- Puncture resistance
- Tear resistance
Stress Crack Resistance
ESCR (Environmental Stress Crack Resistance) is monitored as a standard batch-testing parameter to assess resistance to stress cracking.
Oxidative Durability
Oxidation induction time testing is used to monitor the material's resistance to oxidative degradation.
Testing includes:
- OIT
- HP-OIT
UV & Long-Term Durability
Long-term durability testing includes UV aging to evaluate performance under prolonged exposure.
Thickness & Dimensional Control
Thickness is continuously monitored during manufacturing using an X-ray scanning system, supporting consistency across the full roll width.
Dimensional stability is also monitored across temperature cycling and prolonged exposure.
Spark Testing
A standard spark-testing system is used to identify pinholes and potential discontinuities.
Laboratory Testing
Strata's GAI-LAP-certified laboratory supports in-house testing of mechanical properties and long-term durability parameters, including ESCR, UV aging, HP-OIT and other relevant tests.
Standards
StrataLiner™ products comply with the applicable requirements of GRI-GM13 and relevant BIS requirements, as specified for the product.
