HDPE geomembrane being welded on a municipal landfill liner system

Landfill Liner System

The sheet at the bottom of a landfill has one job: keep dirty water out of the ground. We make that sheet, the slope version, and the fabric that protects it — and we test every batch.

50+ countries supplied15+ years making linersTest reports with every order

Where Landfill Liners Usually Go Wrong

Most liner trouble is not a material problem. It starts in four places — and each one has a fix.

Sharp stones under the sheet

A geotextile cushion goes down first. It takes the point pressure so the liner does not have to.

Rushed or untested welds

Every seam gets pressure-tested before the cell is covered. A failed seam is opened and redone on the spot.

A smooth sheet on a steep slope

Slopes get the textured version. The rough surface grips the soil above and below it.

Sun and time

UV stabilizers and antioxidants are measured in every batch, so the sheet holds up for years before it is covered.

HDPE geomembrane edge with carbon black resin pellets

What Sits Under the Waste

A landfill cell is a layer cake: waste on top, a drainage layer that collects the dirty water, a fabric that protects the sheet, the HDPE sheet itself, and compacted soil at the bottom.

Cross-section of landfill liner system layers with HDPE geomembrane barrier
1.0–3.0 mmGeomembrane thickness range — your designer sets the final number
Up to 8.0 mRoll width — wider rolls mean fewer seams, and seams are where leaks start
Smooth + texturedOne cell can mix both — smooth on the base, textured on the slopes

The final build-up always follows your project design. We match thickness, surface and fabric weight to the drawing.

Geomembrane-lined containment cells

Tested Before It Ships

Every batch starts with virgin HDPE resin from SABIC, Chevron Phillips or Borealis. Then our lab checks the numbers your engineer will ask about.

±3%

Thickness toleranceGRI-GM13 allows ±10% — our flat-die line holds it tighter

>2,000h

Stress crack resistanceASTM D5397, notched constant load

>600min

Oxidation resistanceASTM D5885, high-pressure OIT

2.0–3.0%

Carbon black contentASTM D4218 — the UV shield in the sheet

From Your Drawing to Your Site

Send the cell layout

Base area, slope ratio, thickness, waste type. A sketch is enough to start.

We confirm the spec

You get a quotation with the data sheet and a roll plan — not just a price.

Start small if you like

A trial order lets you test the material and our paperwork before the main contract.

Production with batch tests

Thickness is measured inline on the line, samples go to the lab, and the reports ship with the rolls.

Loading and site support

Container loading photos, seal numbers, and an installation guide with welding parameters.

Landfills Already Running on Our Liner

Municipal landfill expansion cell lined with HDPE geomembrane
Municipal landfill expansion · Southeast Asia
450,000

2.0 mm double-textured HDPE base liner

120 containers, delivered on schedule. Every field seam passed third-party destructive testing before the cell was covered.

200,000

Industrial tailings cell — 1.5 mm smooth HDPE

Specified against acidic mining leachate, batch-certified before shipment.

Seams Are Where Liners Live or Die

Textured geomembrane roll with thickness gauge on a landfill slope Dual-track hot wedge welding of HDPE geomembrane seams

Dual-track hot wedge welding

Two parallel weld lines with an air channel between them — so every seam can be pressure-tested, not just looked at.

0.25 MPa air-channel test

The channel is pressurized and watched. Any pressure drop means the seam is opened and redone before covering.

Trial welds every shift

Same machine, same operator, same weather — test pieces are welded and pulled apart before the real work starts.

Geomembrane-lined ponds and installation work

Send Six Details, Get a Real Quotation

Cell layout, slope ratio, thickness, waste type, leachate conditions, delivery schedule. That is all we need to price the full material package.

Geomembrane production, certification and container loading at Jinseed

The Factory Behind the Liner

Flat-die extrusion lines in Zhaoqing, Guangdong. Thickness is gauged inline, and every roll passes a spark test for pinholes before packing.

55,000

Production facility

20,000t

Annual HDPE capacity

30M m²

Supplied each year

pH 1–13

Chemical resistance range

The Paperwork Your Project Needs

Landfill jobs run on documents. Here is what we prepare with each order.

ISO 9001:2015 certificate for Jinseed geosynthetics manufacturing IGS corporate membership certificate for Jinseed Geosynthetics Solutions

ISO 9001:2015 quality management

Production audited under ZCC / CNAS supervision — the system that keeps batches consistent.

IGS corporate member

Membership in the International Geosynthetics Society keeps our specs in line with current global practice.

in-house laboratory

Our in-house lab is operated in-house. BTTG or TRI Environmental can witness testing on request.

Landfill Liner Questions, Answered

What goes into a landfill liner system?

From the bottom up: compacted soil, the HDPE sheet, a protection fabric, and a drainage layer that carries dirty water to the collection pipes. Your project design sets the final build-up — we supply the sheet and the fabric to match it.

Smooth or textured — which one do I need?

Flat base areas usually take the smooth sheet. Slopes take the textured one, because the rough surface keeps cover soil from sliding. Many cells use both. Send us your slope ratio and we will confirm the choice before you order.

What thickness should a landfill liner be?

Our range is 1.0–3.0 mm. The two most-ordered thicknesses for landfill work are 1.5 mm and 2.0 mm. Your design engineer fixes the final number — we produce to it and document every roll.

Which documents come with the rolls?

A technical data sheet, batch or roll-level test reports, a certificate of conformance, and roll numbers matched to production and shipment records. Third-party witnessing through BTTG or TRI Environmental can be arranged.

How many rolls fit in one container?

For 2.0 mm HDPE at 5.8–8.0 m width, a 40' HC container usually takes 15–17 rolls. We plan the loading around your roll sizes and send photos and seal numbers for every shipment.

What is the minimum order and the lead time?

Trial orders for regular specs start from 1–3 tons. Standard production takes 7–15 days after the spec is confirmed; custom thickness, width or mixed containers usually take 15–25 days.

Can you make rolls to our tender specification?

Yes. Thickness, width, roll length, surface type and packing marks can all follow your tender or drawing. We confirm the spec sheet with you before production starts, so there are no surprises at the port or on site.

What should I send for a quotation?

Six things: the cell layout with base area and slope ratio, thickness and surface type, waste type and leachate conditions, geotextile weight, delivery schedule, and the documents your project requires. Drawings or tender files help us quote in fewer rounds.

Get Your Landfill Liner Package Reviewed

Send your cell layout, thickness requirement and document list — our engineers reply with the matched materials, roll plan and pricing.

Tel: +65 8426 5294 Head Office: 182 Cecil Street, Frasers Tower Level 17, Singapore 069547 Factory: Zhaoqing High-tech Industrial Development Zone, Guangdong, China
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