🔹 Basic Product Information
Feature:Durable, Foldable, Large Capacity, Sound Absorption, Thermal Insulation
Material:HDPE, Sodium Base Bentonite
Type:Waterproof Roll Material
Thickness:4.0mm
Weight:4000g/m² - 6000g/m²
Service:Free Sample, Technical Data Sheet
📝 Product Description
Our Geosynthetic Clay Liner (GCL) is a high-performance material engineered with high-expansive sodium base bentonite, needle-punched between specialized composite geotextile and resilient nonwoven fabric. This creates an impenetrable waterproof barrier that swells 15 to 17 times its original size when in contact with water, forming a dense colloidal layer to stop leakage effectively.
📊 Technical Specifications
| Projects / Technical Data |
GCL-NP |
GCL-OF |
GCL-AH |
| Weight per unit area (g/m²) |
≥4000 |
≥4000 |
≥4000 |
| Bentonite Swell Index (ml/2g) |
≥24 |
≥24 |
≥24 |
| Tensile Strength (N/100mm) |
≥600 |
≥700 |
≥600 |
| Permeability (m/s) |
≤5.0x10⁻¹¹ |
≤5.0x10⁻¹¹ |
- |
| Filtration Loss (ml) |
≤18 |
≤18 |
≤18 |
✅ Key Advantages
1
Unrivaled Swelling Capability: Ensures peak waterproofing performance upon water interaction.
2
Permanent Waterproofing: Sodium bentonite is a natural inorganic mineral that does not age or corrode.
3
Self-Fixing Capacity: Strong ability to adapt to uneven sedimentation and automatically seal minor cracks.
4
Eco-Friendly: Harmless to humans and the environment, aligning with sustainable construction practices.
5
Efficient Construction: Easy to fix with nails and gaskets, significantly reducing building time.
🏗️ Project Applications
Ideal for municipal landfill, water conservancy, artificial lakes, subways, and subterranean structures.
❓ Frequently Asked Questions
Q1: Are you a factory or trading company?
A1: We are a manufacturer/factory specializing in geosynthetic materials.
Q2: How do you ensure the product quality?
A2: We implement three QC processes: raw material inspection, onsite production monitoring, and final batch testing.
Q3: Can I get a sample before ordering?
A3: Yes, we provide free samples for quality inspection; only the freight fee is charged and will be returned upon order placement.
Q4: Do you accept OEM or ODM orders?
A4: Yes, we can produce geomembranes and GCL liners according to your specific brand and technical requirements.
Q5: What is your minimum order quantity (MOQ)?
A5: We accept small orders for new clients to build mutual trust and establish long-term business relationships.
Q6: What payment methods do you accept?
A6: We accept T/T, L/C, D/P, and other standard international payment methods.