Volclay Bentonite services in Auckland and Christchurch.    

Volclay Voltex


VOLTEX Waterproofing Membrane

Bentonite-Geotextile Waterproofing with Integrated Polyethylene Liner

With more than 50 years of proven performance, VOLTEX waterproofing membranes encapsulates the high-swelling and self-sealing properties of sodium bentonite between two geotextiles.

A proprietary needlepunching process interlocks the two geotextiles together. Not only does this form an extremely strong composite that maintains equal coverage of bentonite, but it also protects it from inclement weather and construction-related damage.

Durable Construction

- Offers major construction advantages over adhered sheet membrane and fluid-applied waterproofing

- Combines durability of needle-punched composite with the ability to seal-heal

- Durable composite resists damage from tradesmen installing reinforcing steel over it and inclement weather

- Ideal for under slab and property line applications

- Under slab - can be installed directly over a properly prepared substrate without the need of concrete mud slab

- Property line - install directly to retention wall and pour concrete directly against it using single-sided form

- Other applications: backfilled concrete foundation walls; cut-and-cover tunnels

Protection from Water Ingress

- Can self-seal small cracks while forming watertight laps at the seams

- Provides a strong mechanical bond to poured concrete

- Proven effective in structures under continuous or intermittent hydrostatic pressure up to 70m (23 ft)

Fast and Easy Installation

- Overlapping seams with mechanical fasteners eliminates installation variables in the field

- Its durable composite construction eliminates the need for a mud slab


- Can be installed in virtually any weather condition, including freezing temperatures and damp conditions

- Can be installed on green concrete without primers or adhesives

- Proven effective in both vertical and horizontal applications - i.e., backfilled and property-line walls

    * Please contact us in Auckland, Christchurch and Dunedin for free advice on waterproofing the roofs, decks, parapets, walls and basements of your projects.    


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