Claynox Geodrain GNC

High flow, economical, widely proven.

Rhombic HDPE geonet

Geocomposite

Claynox Geodrain GNC

HDPE geonet with a rhombic structure, available with or without a geotextile layer.

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What is Claynox Geodrain GNC?

Claynox Geodrain GNC is an HDPE geonet with a unique rhombic rib structure, designed to deliver high drainage flow capacity at an economical price point. Its rhombic geometry creates efficient flow channels while maintaining compressive resistance, making it the most widely specified and installed type in the Geodrain product range.

Geodrain GNC is available as a standalone geonet or as a geocomposite with a geotextile filtration layer laminated to one or both sides. The geotextile layer acts as a filter, preventing soil particles from entering the drainage core while allowing water to pass freely.

Made from HDPE, Geodrain GNC offers chemical resistance, durability, and flexibility — making it suitable for a wide range of civil and environmental drainage applications across Indonesia.

Key features

Rhombic Structure — High Flow at Economical Cost
The unique rhombic rib geometry creates efficient drainage channels that deliver high in-plane flow capacity — making Geodrain GNC the most cost-effective solution in the range and the most widely used type in the field.
With or Without Geotextile
Available as a bare geonet for applications where filtration is handled by a separate layer, or as a ready-to-install geocomposite with a geotextile bonded to one or both sides — reducing installation steps and ensuring consistent filter performance.
Chemical Resistant HDPE
HDPE base material is resistant to leachate, acids, alkalis and hydrocarbons — ensuring long-term performance in aggressive chemical environments such as landfill, mining, and industrial drainage.
Widely Proven Across Indonesia
As the most widely used Geodrain type, GNC has an extensive track record across TPA, mining, road, and civil projects throughout Indonesia — backed by Indramas supply, installation and engineering support.

Specifications

PROPERTY	VALUE
Base material	HDPE
Structure	Rhombic geonet
Geotextile option	With or without geotextile filtration layer
Chemical resistance	Resistant to acids, alkalis, leachate, hydrocarbons
Application	Landfill, mining, civil and environmental drainage