HDPE Geomembrane Roll

Sustainable Water Resource Preservation & Engineering Containment: SherkatTrade HDPE Geomembrane Liners

In an era of global water scarcity, extreme climate volatility, and rigorous industrial environmental regulations in 2026, constructing leak-proof agricultural water reservoirs, solar evaporation ponds, and industrial wastewater lagoons is an existential operational priority. SherkatTrade HDPE Geomembrane Sheet Liners (High-Density Polyethylene Containment Membranes), fully compliant with the international GRI-GM13 specification, provide the ultimate impermeable barrier against subsurface seepage, securing 100% water retention for commercial agriculture and civil infrastructure.

Manufactured at our polymer converting facility in Isfahan from 100% virgin high-density polyethylene resin compounded with 2.5% fine-particle carbon black (Carbon Black N-550/N-660) and synergistic antioxidant/HALS light stabilizers, these liners resist harsh solar ultraviolet radiation, severe desert thermal cycles (-40°C to +80°C), and corrosive industrial chemical leachates, delivering a certified service life exceeding 50 years.

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Technical Specifications & GRI-GM13 Compliance Matrix (2026 Edition)

Every production master roll is accompanied by a certified laboratory Quality Test Report (QTR) verified under ASTM and GRI-GM13 testing protocols:

• Available Thickness Range: Standard 0.75mm, 1.0mm, 1.5mm, 2.0mm, and 3.0mm thicknesses (smooth/smooth or single/double-sided textured).
• Extra-Wide Roll Dimensions: Standard 3.0m, 5.8m, 6.0m, and 7.5m widths designed to minimize field wedge-welding seams and maximize installation integrity.
• Continuous Roll Meterage: 50m to 100m continuous lengths wound on reinforced steel cores and protected with heavy-duty outer geotextile wrapping.
• Superior UV Stabilization: Formulated with 2.5% micronized carbon black, ensuring outstanding resistance to photo-oxidation and environmental stress cracking (ESCR > 500 hrs).
• Zero Hydrostatic Permeability: Extremely low water vapor transmission coefficient (< $1 \times 10^{-13}$ cm/s), guaranteeing absolute zero seepage.
• Certified Biological Safety (Aquaculture Safe): 100% non-toxic, free of plasticizers and heavy metals, completely safe for trout, sturgeon, and shrimp farming.
• Broad-Spectrum Chemical Resistance: Unaffected by concentrated sulfuric acid, hydrochloric acid, alkalis, hydrocarbons, and landfill leachates.

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Application & Thickness Selection Guide

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Economic and Operational Advantages Over Traditional Concrete Lining

1. 70% Lower Construction Cost Compared to Reinforced Concrete

Geomembrane installation eliminates expensive steel rebar framing, formwork, and multi-layer bitumen waterproofing, requiring only compacted earth grading.

2. Rapid Installation Throughput (Up to 1,000 m²/day)

Using automated dual-track hot wedge welding machines with integrated air test channels, hundreds of square meters are lined and pressurized daily.

3. High Flexibility Against Ground Subsidence and Seismic Shifts

With an elongation at break exceeding 700% (ASTM D6693), the membrane flexes and conforms to asymmetrical ground settling without puncturing.

4. 100% Frost and Algae Resistance

Unlike concrete that develops micro-cracks during winter freeze-thaw cycles, SherkatTrade HDPE liners remain ductile down to -40°C.

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Technical Comparison: SherkatTrade HDPE Geomembrane vs. Concrete & Bitumen Liners

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Supply Excellence & Installation Support from Isfahan

1. Complete Geosynthetic Accessories: Single-source supply of nonwoven needle-punched geotextiles (300–500 gsm), extrusion welding guns, and HDPE welding rod.
2. Standard GM13 Quality Verification: Full laboratory test certificates accompanying every shipment with guaranteed technical traceability.
3. Turnkey Heavy Transport Logistics: Direct dispatch on specialized flatbed trailers from Isfahan directly to farm reservoirs, mines, and international borders.

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Frequently Asked Questions (FAQ)

Is it necessary to install a geotextile underlay beneath the geomembrane?

Yes, in soil beds containing gravel, sharp stones, or aggregate remnants, placing a protective nonwoven geotextile cushion is essential to prevent hydrostatic puncture under deep water loads.

How are geomembrane field welds verified for water-tightness?

Dual-track hot wedge welds create a central air channel that is pressurized with air (Air Pressure Test) to verify seal integrity. Corner transitions are tested with spark testers or vacuum testing boxes.

What is the minimum wholesale order quantity for direct factory dispatch?

Minimum orders for full factory rolls start from a single master roll (typically 300 m² to 600 m² depending on roll width and thickness).

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Factory-Direct Quotations, Technical Data Sheets & Supply Contracts

Contact the SherkatTrade geosynthetics and water containment engineering team to receive site-specific thickness evaluations and bulk pricing:

• 📞 Direct Geosynthetics Sales Desk: Speak directly with our polymer lining engineers for real-time roll pricing and volume discounts.
• 📦 Free Technical Sample Kit & GM13 Certificate: Request physical sample swatches of 1.0mm, 1.5mm, and 2.0mm smooth and textured sheets.
• 🚚 Guaranteed Global Logistics: Reliable dispatch from our Isfahan manufacturing hub to international borders and seaports.