Bentonite Geosynthetic Clay Liner with 6m Width and ≥24ml/2g Swelling Index for Low Permeability Waterproofing

BentoSeal NB Sodium Bentonite Waterproofing Blanket represents a breakthrough in geosynthetic technology, combining natural sodium bentonite with advanced carrier geotextiles to create an intelligent, self-sealing barrier system. This innovative solution delivers unmatched waterproofing performance while significantly reducing installation time and costs compared to traditional methods.

Our waterproof blanket features a precisely engineered layer of high-quality sodium bentonite encapsulated between two robust geotextile layers. When hydrated, the bentonite swells to form a continuous, low-permeability gel barrier that automatically seals punctures and seams. This unique self-healing capability ensures long-term reliability even in demanding conditions.

• Achieves permeability coefficients as low as 5*10⁻¹¹ m/s
• Withstands hydrostatic pressures exceeding 1.0 MPa
• Provides waterproofing equivalent to 1 meter of compacted clay in just 6mm thickness

• Automatically seals cracks and punctures up to 2mm wide
• Maintains integrity even under structural movement
• Self-sealing properties remain effective throughout the product's lifespan

• Simple roll-out installation requires no specialized equipment
• Reduces installation time by up to 50% compared to conventional methods
• Eliminates the need for complex welding or mixing processes

• Resists chemical degradation and biological attack
• Maintains performance across temperature ranges from -20°C to 60°C
• Excellent UV resistance for extended exposed installation periods

• Underground structures and basements
• Tunnel and subway systems
• Bridge abutments and foundations

• Landfill liners and caps
• Waste containment facilities
• Mining leachate ponds

• Reservoirs and irrigation canals
• Decorative water features
• Roof garden waterproofing

1. Prepare a smooth, compacted subgrade free of sharp protrusions
2. Unroll blankets with minimum 150mm side overlaps
3. Secure using mechanical fasteners on slopes exceeding 1:3
4. Backfill promptly to prevent UV degradation

Discover how BentoSeal NB can provide reliable, cost-effective waterproofing for your next project. Contact our engineering team for project-specific recommendations and installation guidance.

BentoSeal NB: Intelligent Waterproofing, Installed with Confidence.