Geomembrane supplier & installer in Malaysia.
HDPE, LLDPE, and PVC liner systems for landfill caps, containment ponds, mine tailings, aquaculture, irrigation reservoirs, and secondary containment. Smooth and textured geomembranes 0.5-3.0 mm. Field-welded hot-wedge primary seams plus extrusion repair welds, all non-destructively tested. To GRI-GM13, GRI-GM17, GRI-GM19, ASTM D5994, ASTM D5397, ISO 10318, JKR. Supplied and installed by our own crews under one CIDB G7 contract.
HDPE, LLDPE, PVC.
HDPE, Primary containment
High-density polyethylene. Excellent chemical resistance, wide temperature range, long design life (50+ years). Stiffer than LLDPE, harder to install on irregular subgrade, more careful welding. Use: landfill base liners, mine tailings ponds, hazardous chemical containment, leachate collection, hydrocarbon storage secondary containment.
LLDPE, Flexible & cap systems
Linear low-density polyethylene. Softer than HDPE, conforms to settlement and rough subgrade. Slightly less chemical resistance but more puncture-tolerant. Use: landfill cap systems (where settlement is expected), pond liners with irregular subgrade, secondary containment under tanks, retrofit applications.
PVC, Water-only legacy
Polyvinyl chloride. Soft, easy to weld, cheaper. Limited UV resistance and chemical compatibility. Use: aquaculture ponds (fish, shrimp), irrigation reservoirs, ornamental ponds, decorative water features. Not recommended for landfill, chemical, or long-term UV exposure.
Where each polymer fits.
| Application | Polymer | Thickness | Surface |
|---|---|---|---|
| Landfill base liner (DOE / hazardous waste) | HDPE | 2.0-2.5 mm | Smooth or textured |
| Landfill cap system | LLDPE | 1.0-1.5 mm | Textured both sides |
| Leachate / contaminated pond | HDPE | 1.5-2.0 mm | Textured (slope stability) |
| Mine tailings storage facility (TSF) | HDPE | 2.0-3.0 mm | Textured |
| Industrial wastewater pond | HDPE | 1.5-2.0 mm | Smooth |
| Irrigation reservoir / agriculture | HDPE / LLDPE / PVC | 0.75-1.5 mm | Smooth |
| Aquaculture (shrimp, fish farms) | HDPE / PVC | 0.5-1.0 mm | Smooth |
| Secondary containment under tanks | HDPE / LLDPE | 1.0-1.5 mm | Smooth |
| Decorative water feature / fountain | PVC / EPDM | 0.5-1.0 mm | Smooth |
| Cofferdam / temporary water barrier | HDPE / LLDPE | 0.5-1.0 mm | Smooth |
Hot-wedge primary, extrusion repair.
Hot-wedge (dual-track)
Automated welder runs along the seam at 1-2 m/min, fusing two parallel tracks with a small air channel between. The channel allows air-pressure testing: pressurise to 30 psi, hold 5 min, drop <3 psi = pass. Used for all primary panel-to-panel seams.
Extrusion welding
Manual extrusion gun lays a bead of molten polymer over an overlap joint. Used for patches, T-joints, penetrations, corners, repairs. Vacuum box test: cover seam with soapy water under a transparent vacuum box at 5 kPa; bubbles indicate leaks. Or spark-tested.
Destructive sampling
Per GRI-GM19, one sample per ~150 m of primary seam tested in laboratory for shear and peel strength. Failed samples → seam tracked back, re-welded, re-tested.
Documentation
As-built panel layout, weld log, pressure test records, vacuum box records, destructive sample reports, manufacturer certificate of conformance. Submitted to consultant + DOE / authority for sign-off.
Specs we supply & install to.
| Standard | Coverage |
|---|---|
| GRI-GM13 | HDPE smooth and textured geomembrane spec |
| GRI-GM17 | LLDPE smooth and textured geomembrane spec |
| GRI-GM19 | Seam strength specifications + destructive sample frequency |
| ASTM D5994 | Geomembrane thickness measurement |
| ASTM D5397 | HDPE single-point notched constant tensile load (stress crack) |
| ASTM D6392 | Seam shear and peel strength |
| ASTM D5820 / D7005 | Air pressure / vacuum box seam testing |
| ISO 10318 | Geosynthetics, terms and definitions |
| BS EN 13491-13495 | Geomembrane in canal / dam / landfill / tunnel barrier applications |
| JKR-SPJ + DOE EIA | JKR specs + Department of Environment EIA / landfill licensing |
How geomembrane goes in.
Subgrade preparation
Smooth, compact, free of stones >25 mm, sticks, sharp objects. Final-trim with hand tools. Compaction test records. Subgrade pH check for HDPE compatibility (alkaline soils require neutralising).
Cushion geotextile (if specified)
Nonwoven 200-400 g/m² over rough subgrade. Heat-bonded seams 100 mm overlap, no holes. Acts as puncture-protection for the geomembrane above.
Geomembrane deployment
Roll out one panel at a time during low-wind window. Anchor edges in compacted earth or concrete-filled trench. Allow 2-3% slack for thermal contraction. Sequence panels to minimise field-weld length.
Hot-wedge primary welding
Calibrate welder daily, temperature, speed, pressure. Trial welds at start of shift, destructive-tested. Production welding with continuous QA records. Air-pressure test each completed seam.
Detail work
Penetrations (pipes, anchors), T-joints, repairs handled with extrusion welder. Each detail vacuum-box or spark tested.
Cover & commissioning
For landfill base: drainage stone (cushioned by geotextile). For pond: water test for 7-14 days, monitor levels, repair any leaks. Document for DOE sign-off.
Engineers and developers usually ask:
HDPE, LLDPE, or PVC? +
What thickness? +
Hot-wedge vs extrusion welding? +
Cushion geotextile needed? +
Standards? +
Quality control documentation? +
Geomembrane pairs with these scopes.
Geotextile →
Cushion geotextile (nonwoven) protects geomembrane from puncture. Always paired with the liner.
Read guideStrataDrain geocomposite →
Above the liner in landfill cap systems and behind retaining walls. Channels percolation to controlled discharge.
Read moreEarthworks →
Subgrade preparation under the geomembrane is critical, smooth, free of sharp objects. Earthworks scope on integrated contracts.
Read guideGeosynthetics →
Full STRATA portfolio + complementary products.
Read hubNeed a geomembrane for landfill, pond, or containment?
Send the consultant's design (or just the application). Same-day quote with polymer recommendation, thickness, and lead time.