Natural Sodium Bentonite Core for Superior Hydraulic Barriers

Key Features

◼️ Triple-Layer Structure
Woven/non-woven geotextile sandwiching high-grade bentonite core

◼️ Self-Sealing Ability
Expands 10-15X when hydrated, sealing cracks & punctures

◼️ Zero Permeability
≤5×10⁻¹¹ m/s hydraulic conductivity after swelling

◼️ Eco-Friendly
100% natural sodium bentonite (non-toxic, VOC-free)

Technical Highlights

▫️ Bentonite Content: ≥4.5kg/m²
▫️ Roll Size: 4.8m×35m (customizable)
▫️ Peel Strength: ≥40 N/cm
▫️ Swell Index: ≥24ml/2g

Primary Applications

✓ Landfill caps/base liners
✓ Tunnel/underground structure waterproofing
✓ Pond & canal liners
✓ Foundation moisture barriers

Why Choose Our Product?

★ 50% faster installation vs traditional membranes
★ No need for compacted clay layers
★ Maintains flexibility (-30°C to 60°C)
★ Resists differential settlement

Installation Basics

1. Overlap seams by 300mm minimum

2. Anchor edges with bentonite paste

3. Cover with 300mm backfill within 48hrs

Certifications:  ISO and CE
MOQ: 1 ROLL

[Request Sample] [Download Spec Sheet]By contact us:+86 15116129368