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1000GSM Flat Drainage Composite Liner

This composite geomembrane is one kind of waterproof material, the main ingredients are 97.5% high density polyethylene and about 2.5% carbon black, anti-aging agent, antioxidant, ultraviolet absorbent, stabilizer, etc. It has a long service life(more than 70 years) and can be used under a big range of temperature(±70ºC).
Availability:
  • 400-2800g/m2

  • Yingfan


Product Overview

The 1000GSM Flat Drainage Composite Geomembrane Liner is a high-performance composite material combining geomembrane and nonwoven geotextile, designed to deliver dual functions of waterproofing and drainage. Manufactured by Yingfan, this product features 97.5% high-density polyethylene (HDPE) as the core material, supplemented with 2.5% carbon black, anti-aging agents, and UV stabilizers, ensuring a 70-year service life and reliable performance in temperatures ranging from -70℃ to +70℃. Compliant with ISO 9001:2008, ASTM, and GB/T17643 standards, it is the ideal choice for projects requiring both effective drainage and robust anti-seepage protection, such as landfills, artificial lakes, and subway engineering. The 1000GSM composite geomembrane integrates durability, versatility, and ease of installation, making it a top-tier solution across multiple industries.


geocomposite geomembrane


Technical Specifications & Material Details

Technical Specifications Table

Parameter

Details

Product Name

1000GSM Flat Drainage Composite Geomembrane Liner

GSM Range

400-2800g/m² (focus on 1000GSM)

Film Thickness

0.2mm-2.0mm (customizable)

Roll Length

50-150m (or per customer request)

Roll Width

2-6m (or custom-sized)

Material Options

HDPE, LDPE, LLDPE

Certification

ISO 9001:2008

Standards

ASTM, GRI-GM13, GB/T17643

Service Life

70 years

Operating Temperature

±70℃

Color

White, black (customizable)

Core Material Composition

The composite liner consists of two key layers: a nonwoven geotextile layer and a geomembrane layer (0.1-1.5mm). The geotextile layer, weighing 150g/m²--500g/m², provides excellent drainage, filtration, and protection, preventing soil particles from clogging the system while enhancing the geomembrane’s stability. The geomembrane layer, made from HDPE/LDPE/LLDPE, offers superior waterproofing and anti-seepage performance. Additives like carbon black (UV protection), anti-aging agents, and antioxidants extend the product’s lifespan and resistance to environmental degradation. The composite structure is bonded via advanced technology, ensuring strong adhesion between layers and eliminating delamination risks.


Core Advantages of 1000GSM Composite Geomembrane Liner

Dual Function: Drainage & Waterproofing

The integrated design combines the drainage capability of geotextile with the waterproofing of geomembrane, eliminating the need for separate drainage and barrier materials. It efficiently removes excess water while preventing liquid leakage, optimizing project performance and reducing material costs.

70-Year Long Service Life

Crafted with 97.5% high-quality PE resin and premium additives, the liner resists aging, UV radiation, and chemical corrosion, delivering a 70-year service life—significantly reducing long-term maintenance and replacement expenses.

Strong Anti-Aging & UV Resistance

Carbon black and UV absorbers in the formula provide exceptional UV resistance, protecting the liner from sun damage in outdoor applications like roof gardens and artificial lakes. It maintains structural integrity even after prolonged exposure to harsh weather.

Customizable Specifications

With GSM ranging from 400-2800g/m² and film thickness from 0.2-2.0mm, the product can be customized to meet the unique needs of different projects. It also offers flexible roll lengths and widths, adapting to various project scales and layouts.

Excellent Mechanical Properties

The composite structure enhances tear resistance, puncture resistance, and deformation adaptability. It withstands soil settlement, structural movement, and external pressures, ensuring stability in demanding applications like mining tailings ponds and dam reinforcement.

Eco-Friendly & Non-Toxic

All materials comply with environmental standards, being non-toxic and pollution-free. It is safe for use in drinking water projects, agriculture, and aquaculture, protecting ecosystems and public health.


Versatile Application Scenarios

Environmental Protection

Municipal and industrial landfill sites

Sewage treatment plants and solid waste containment (hospital, industrial waste)

Power plant regulating tanks

Water Resources Protection

River, lake, and reservoir anti-seepage and slope protection

Canal leakage stoppage and irrigation system lining

Municipal & Landscape Engineering

Subway and underground building anti-seepage

Planting roofs, roof gardens, and artificial lakes

Sewage pipe liners and roof cisterns

Mining & Petrochemical Industries

Ash yards, dissolving tanks, and tailings pond anti-seepage

Oil storage tank lining and chemical reaction tank secondary lining

Agriculture & Aquaculture

Irrigation ditches, drinking water tanks, and reservoir anti-seepage

Aquaculture ponds (fish, shrimp, sea cucumber) liners and slope protection

Traffic Facilities

Highway foundation reinforcement

Subway and culvert anti-seepage


Quality Assurance & Safety

ISO-Certified Quality Management

Yingfan holds ISO 9001:2008/4001/45001 certification, implementing strict quality control from raw material procurement to production, testing, and delivery. Each batch of composite geomembrane liner undergoes rigorous inspections to ensure compliance with ASTM and GRI-GM13 standards.

Comprehensive Performance Testing

Key performance indicators—waterproofing, drainage, tear strength, chemical resistance, and UV resistance—are tested in professional laboratories. Only products that pass all tests are released to customers, guaranteeing reliability.

Safe & Compliant

The liner is non-toxic, odorless, and free of harmful substances, meeting global environmental and safety regulations. It is suitable for sensitive projects and poses no risk to soil, water, or wildlife.


Installation & Maintenance Guidelines

Installation Preparation

Ensure the base is flat, compact, and free of sharp stones, roots, or debris to prevent puncturing the liner.

Cut the liner according to project dimensions, allowing sufficient overlap (10-15cm) for joints.

Installation Steps

Unroll the liner carefully, avoiding tension or wrinkles. Align sheets to ensure proper overlap.

Secure the liner with anchors or weights to prevent movement during installation.

Seal joints using heat welding or adhesive (depending on material type) to ensure waterproof integrity.

Conduct leak tests (air pressure or water pressure) to verify no gaps in joints or the liner surface.

Cover the liner with protective material (e.g., soil, geotextile) if required for long-term protection.

Maintenance Guidelines

Inspect the liner regularly for damage (punctures, tears, joint issues) after heavy rain, construction activities, or extreme weather.

Clear debris and sediment from the drainage layer to maintain drainage efficiency.

Avoid exposing the liner to sharp objects or heavy machinery during maintenance.

Repair small damages promptly with geomembrane patches and professional sealants.


FAQ

What does "1000GSM" mean for the composite geomembrane?

GSM (Grams per Square Meter) refers to the whole weight of this product. 

How long does installation take for a medium-sized project?

Installation speed depends on project size and complexity, but the liner’s lightweight design and simple jointing process ensure efficiency—typically 3-7 days for medium-sized projects (e.g., 1,000㎡).

Is the liner customizable for irregular-shaped projects?

Absolutely. We offer custom roll lengths, widths, and material combinations to fit irregular layouts like curved reservoirs or complex landfill sites.


CTA

Elevate your project’s drainage and waterproofing performance with the 1000GSM Flat Drainage Composite Geomembrane Liner—the all-in-one solution trusted by industries worldwide. Contact our sales team now to get a personalized quote, request a free sample, or consult our technical experts for project-specific advice. Whether you’re working on environmental protection, water conservancy, or municipal engineering, Yingfan’s premium composite liner ensures durability, safety, and cost-effectiveness. Take the first step toward a reliable project—partner with us today!


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   +86-181-1627-9536
  +86-181-1627-9536
   xieruiqing@shyfem.com
  No.189 Kanggong Rd, Zhujiajiao Industrial Park, Qingpu District, Shanghai China 201713
 
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