GeoDrain LD 420 – Leak Detection Drainage Core -HDPE ( 2.35m x 60m)

Description

GeoDrain LD 420 is a high-performance HDPE cuspated drainage core developed for use in leak detection and venting systems within lined containment structures. The product is primarily installed between primary and secondary geomembrane liners, where it enables rapid collection, conveyance, and monitoring of leaked fluids, while also facilitating controlled gas venting.

The cuspated structure provides reliable in-plane flow capacity while maintaining consistent thickness under load. GeoDrain LD 420 allows leaked liquids to be channelled to monitoring points for early detection of liner integrity issues, supporting regulatory compliance and long-term environmental protection.

In addition to leak detection, GeoDrain LD 420 is effective as a gas venting layer, preventing pressure build-up beneath geomembranes and improving the overall stability and durability of containment systems. Its HDPE construction offers excellent chemical resistance, durability, and compatibility with adjacent geosynthetic materials.

GeoDrain LD 420 is commonly used in landfills, mining containment facilities, heap leach pads, lined reservoirs, and environmental protection works where early leak detection and controlled venting are critical to asset performance and environmental safety.

Specifications Snapshot

Property	Value
Product Type	Cuspated drainage core
Material	HDPE
Primary Function	Leak detection & gas venting
Nominal Thickness	± 5.0 mm
Dimple Height	± 4.2 mm
Mass	± 420 gsm
Compressive Strength	≥ 700 kN/m²
In-Plane Flow Rate	≥ 1.7 l/m·s (tested in accordance with EN 13252 / EN ISO 12958)
Roll Dimensions	2.35 m × 60 m
Standard	EN 13252

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Typical Applications

• Leak detection layers in double-lined systems

• Gas venting beneath geomembranes

• Landfills and hazardous waste facilities

• Mining containment and heap leach pads