HDPE Geomembrane for Civil Engineering

Smooth and textured liners from 1.0 to 3.0 mm, in rolls up to 8 m wide. Made from 100% virgin resin in our own plant, tested to GRI-GM13, and already working under roads, tunnels and reservoirs in more than 50 countries.

Email info@jinseed-geo.com WhatsApp +65 8426 5294

Request current management-system certificates, membership documentation and product-specific test reports.

15+years making geomembrane

30M+ m²supplied every year

50+countries served

20,000 tannual HDPE capacity

Where civil projects use it

Four everyday jobs for our liners and geotextiles. Each links to a page or guide with the full details.

Tunnels & underground works

A geotextile cushion goes against the shotcrete, the membrane against the water. Fixed, hung and welded in place.

Tunnel installation guide

Geomembrane lining installed along an earthworks slope

Slopes & erosion control

Geocells and geotextiles hold cover soil on the slope; a textured membrane underneath keeps water out.

Erosion control methods

Geomembrane-lined containment basin at a project site

Secondary containment

Tank farms and chemical stores: the liner is sized to the stored volume, with every penetration detailed before production.

What to put in the RFQ

Close view of textured geomembrane material

MSE walls & steep embankments

Reinforced-soil walls require designed reinforcement. Where a liner is included, assess interface shear strength and slope stability for the actual layer combination; texture alone does not establish a safe slope.

Smooth vs textured

Crew installing geosynthetic lining materials on site

On roads and railways, the layers do the work

Separation under the base course

The geotextile keeps soft subgrade and crushed stone from mixing, so the base keeps its strength under traffic.

Ballast protection on rail beds

A fabric layer under the ballast stops pumping and keeps fines out of the drainage path.

Moisture barrier where specified

An HDPE membrane seals the formation against water and frost on cuttings and working platforms.

Recognized specifications

Road builds commonly specify AASHTO M288-17 for the geotextile and GRI-GM13 for the membrane — both covered by our standard test sets.

Geotextiles in road construction Railway ballast separation

Four mechanisms, one lining system

The membrane blocks water. The textiles around it carry loads, filter fines and drain seepage. Most civil specs combine them.

Separation

Stops subgrade soil and base aggregate from mixing under repeated loading.

Less base stone for the same strength

Filtration & drainage

Lets water pass at a high flow rate while holding back fine soil particles.

AOS 0.05–0.5 mm · permittivity ≥ 1.5 s⁻¹

Reinforcement

Spreads concentrated loads over a wider area of soft ground.

Up to 200 kN/m woven · 40 kN/m biaxial geogrid

Containment

A low-permeability barrier that limits liquid migration. Gas transmission, chemical compatibility and system leakage require separate assessment.

K ≤ 1×10⁻¹³ cm/s · stress-crack resistance > 500 h

Reservoirs, canals and landfill cells

Lined canals hold their water

A properly designed and installed liner reduces seepage through the canal bed. Joints, penetrations, erosion and groundwater uplift still require design and inspection.

Check stability at every interface

Test the proposed interfaces under representative normal stress, moisture and displacement conditions. Use the results in the slope stability analysis; a textured surface does not guarantee that a 1:2.5 slope is stable.

Water-contact suitability for reservoirs

Select liner thickness from the project design. Potable-water use requires applicable evidence for the exact formulation and intended contact conditions; polymer type or a GRI specification alone is not drinking-water approval.

Canal lining explained Landfill liner system

Large HDPE-lined water reservoir with a worker inspecting the liner edge

Checked four times before a roll ships

Resin in

100% virgin HDPE from Sabic, Chevron Phillips or Borealis, with a certificate of analysis on every batch.

On the line

Ultrasonic scanning holds thickness within ±3%, and every meter passes a spark pinhole test.

Per batch

Specify the applicable material standard and property-specific test frequencies. GRI-GM13 applies to HDPE; GRI-GM17 applies to LLDPE. One sampling frequency does not cover every property.

Per roll

A unique ID ties every roll to its test data. Records stay on file for more than 15 years.

Installation crew unrolling geomembrane on site

Drawings and welding parameters come with the order

Panel layout drawings

Compare available widths against the site drawing to reduce waste and seam length. The saving depends on panel layout, handling and access constraints.

Welding charts for your weather

Temperature, speed and pressure settings matched to site conditions, for wedge and extrusion welding.

Crew training and SOPs

Request installation procedures and training scope. Accept seams against the project peel, shear and continuity requirements, rather than one generic efficiency percentage.

Submittal paperwork per batch

TDS, mill test reports and TRI Environmental results — ready for the engineer of record.

Welding & seam testing Our quality system

The numbers engineers ask for first

Published reference values are shown below. Confirm the offered grade, test method, standard edition and batch report against the project specification; these figures are not site-design limits.

Thickness range1.0–3.0 mm approximately 39.4–118.1 mil

Roll widthup to 8.0 m

Hydraulic conductivity≤ 1×10⁻¹³ cm/s

Stress-crack resistance> 500 h SP-NCTL · ASTM D5397

Standard OIT> 100 min ASTM D3895

Carbon black content2.0–3.0% ASTM D1603

Thickness tolerance±3% inline ultrasonic

Evidence to request for civil projects

The application examples below show what an engineer should verify. Photographs illustrate materials and site work; they do not substantiate a named project, quantity, schedule saving or performance improvement.

White woven geotextile rolled out over soft clay subgrade before aggregate placement

Road subgrade: selection evidence

Match the fabric to the subgrade and pavement design

Review soil strength, aggregate grading, filtration requirements, installation survivability and the specified tensile test. A geotextile does not justify reducing aggregate thickness without a revised pavement design.

Designapproved pavement and subgrade assessment

Reportsgrade-specific mechanical and hydraulic results

Recordsinstallation and acceptance observations

Landfill cell: system verification

Assess liner interfaces and containment details

Specify the material grade and applicable regulatory design requirements. Confirm interface shear testing, protection-layer assessment, seam acceptance and an appropriate electrical leak location method.

Interfacestest the actual contacting materials and conditions

Seamsdocument continuity and destructive test results

Closeoutmap defects, repairs and final acceptance

Other applications to assess

Road reinforcement

Specify reinforcement stiffness, strength, durability and installation requirements from the pavement design. Review the proposed reinforcement separately from the liner and nonwoven fabric.

Landfill closure

Assess settlement, strain, interface stability, drainage and erosion protection. Material manufacturing quality compliance alone does not establish cap performance.

Coastal protection

Match filtration opening size to the retained soil and verify survivability under the actual rock placement. Select the fabric using relevant performance tests, not GSM alone.

What good installation looks like

Prepared base

Provide an accepted, stable subgrade without sharp projections, soft spots or unsupported voids. A designed geotextile cushion does not make an unsuitable foundation acceptable.

Approved overlap and seam detail

Use the approved overlap, equipment and trial-weld procedure. Dual-track wedge seams suit long runs; extrusion welding is used for compatible details and repairs.

Every seam tested

Use the approved air-channel or other continuity test, with documented pressure, stabilization, duration and acceptance criteria. Continuity testing does not establish seam strength or prove the entire liner is leak-free.

Anchored edges

Anchor trenches sized to the slope and wind uplift, backfilled and compacted the same day.

Anchor trench design

Ordering is straightforward

Minimum order2,000 m² stock specs

Trial order1–3 t to test us out

Standard lead time7–14 days

PaymentT/T or 100% L/C at sight

WarrantyConfirm written product and project terms

Container planning40HQ with photo report

Downloads: HDPE data sheet (PDF) · Installation guide (PDF) · Product brochure (PDF)

Wrapped geomembrane rolls stacked in the warehouse ready for container loading

ISO 9001:2015 certificate image; verify validity against the current certificate

2023 IGS corporate membership certificate for Jinseed Geosynthetics Solutions

Certificates and traceability documents

ISO 9001:2015 quality management — see the certificate for issuer, scope and validity
ISO 14001:2015 environmental management
For CE documentation, confirm the applicable product and intended use
2023 IGS corporate membership document shown; confirm current membership separately
Request product-specific test reports: GRI-GM13 for HDPE and GRI-GM17 for LLDPE
Independent verification by BTTG or TRI Environmental on request

See how we test

Questions buyers ask us

Can I get TDS and mill test reports for project submittals?

Request the offered grade data sheet, batch-linked mill test report and any required independent laboratory report. Confirm the laboratory, sample identity, test scope and availability in the order; a historic third-party report does not cover every shipment.

Can roll dimensions be customized?

Published roll widths are up to 8 meters. Confirm the available width and length for the grade and order. Compare seam length, access and handling in the panel layout; wider rolls do not guarantee a fixed percentage saving.

What is the manufacturing lead time?

Standard production takes 7 to 14 days depending on order volume. Custom thicknesses or colors need a resin transition, so allow a few extra days. We handle export packing and ship to major ports worldwide.

What is the minimum order quantity?

Stock specifications start from 2,000 m². If you want to test our material first, trial orders of 1 to 3 tonnes are welcome — enough for a trial section on your site.

Do you support third-party testing?

Independent testing can be requested as part of the agreed supply scope. Confirm the laboratory, test methods, sampling witness, schedule and report requirements. TRI Environmental and BTTG are external laboratories, not Jinseed in-house laboratories.

How long does the liner last?

Service life depends on formulation, temperature, chemical exposure, stress, installation damage and operating conditions. GRI-GM13 concerns HDPE manufacturing quality; GRI-GM17 concerns LLDPE. OIT is not a stand-alone service-life prediction. Request a project-specific durability assessment and confirm written warranty terms separately.

Guides worth reading before you specify

Technical references: GRI-GM13: HDPE manufacturing quality; GRI-GM17: LLDPE manufacturing quality; ASTM D5820: seam continuity testing. Confirm the contract edition and project-specific acceptance criteria.

Composite geomembranes: structure and civil uses Smooth vs textured: friction and slope stability What GRI-GM13 actually requires Tunnel geotextile specification guide Running a trial section before full placement GCL vs compacted clay: conductivity and cost

Send your specification or bill of quantities

Tell us the application, thickness, surface finish, quantity and destination port. You get a full-scope quote back — with the data sheet, mill reports and a suggested panel layout.

Email info@jinseed-geo.com WhatsApp +65 8426 5294

HQ: 182 Cecil Street, Frasers Tower Level 17, Singapore 069547
Plant: No 1 Fenggang North Road, Zhaoqing High-tech Industrial Development Zone, Guangdong, China