VOLTEX®

The world’s leading Bentonite-Geotextile Waterproofing System.

More than 50 years of proven performance. Designed for both vertical and horizontal foundation surfaces, VOLTEX incorporates the high-swelling and self-sealing properties of VOLCLAY® sodium bentonite to form a monolithic, low permeable membrane to protect the structure from water ingress. VOLTEX contains zero VOCs and can be installed on green concrete in almost any weather condition.

Durable Construction

VOLTEX is ideal for waterproofing under slabs and property line applications. Under slabs, VOLTEX can be installed directly over a properly prepared substrate without the need of a concrete mud slab. Its durable composite construction resists damage from tradesman installing reinforcing steel over it and inclement weather. With the durability of the needle-punched composite and the ability to self-heal, VOLTEX offers major construction advantages over adhered sheet membrane and fluid applied waterproofing.

For property line applications, VOLTEX is simply installed directly to the retention wall and then the concrete is poured directly against it using a single sided form. Other applications include backfilled concrete foundation walls and cut-and-cover tunnels.

Exceptional Waterproofing Performance:

Protection from Water Ingress:

  • More than 50 years of proven performance has made VOLTEX the world’s leading Bentonite-Geotextile Waterproofing System.
  • 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 (231 ft).

Installation Benefits and Features:

Fast and Easy:

  • Overlapping seams with mechanical fasteners eliminates installation variables in the field.
  • Its durable composite construction eliminates the need for a mud slab.

Versatility:

  • 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.

AKWASWELL

A polyurethane-based caulk grade swelling paste, AKWASWELL is used primarily to seal rough surfaces in concrete construction joints. Swelling up to 500% of its initial volume when hydrated by water, it creates a positive seal and stops the flow of water through the joint and is suitable for low to moderate hydostatic pressure conditions.

BENTOSEAL

A trowel-grade bentonite-based mastic that is used to detail at membrane terminations, around penetrations, over grouted concrete form-tie holes, and provide fillets to inside wall corners. Unlike most mastics, this premium mastic is capable of swelling and self-sealing upon hydration and is VOC compliant. Bentoseal can be covered with a waterproofing membrane immediately after application.

CETCO SEAMTAPE

A single-sided tape consisting of an aggressive rubber-based adhesive with a durable polyethylene backing. Seamtape is primarily used to seal the overlap seams for both backfilled foundation walls and horizontal deck applications. Seamtape protects the overlap seams against debris intrusion during backfill and damage from rain prior to backfilling. Available in 3” (75 mm) x 50-Ft (15.2 m) rolls; 8 rolls per case

CETSEAL Sealant/Adhesive

A multi-purpose, single component polyether moisture cure sealant/adhesive. CETSEAL is a low VOC, 100% solids, non-shrinking product with excellent UV resistance. Available in 10.1 oz cartridges with 12 cartridges per case at 12 lbs (5.4 kg), or 20 oz foil packs with 12 per case at 20 lbs (9 kg).

ENVIROSHEET

A self-adhering composite sheet waterproofing membrane, ENVIROSHEET consists of 56-mils of rubberized asphalt and a 4-mil cross-laminated, polyethylene carrier film. The two components are laminated together to produce an extremely tough waterproofing barrier.

HYDROBAR TUBES

Consisting of VOLCLAY granular bentonite encapsulated in a water-soluble film tube, HYDROBAR TUBES are a convenient means of providing extra waterproofing protection at the critical wall to footing intersection joint. Each tube is 50 mm (2") dia. x 600 mm (2 ft) long. Available in 16 tubes per box for 9.75 m (32 linear feet).

TB-BOOT Tie-back Covers

A single piece, pre-formed thermoplastic cover that provides a simple and quick waterproofing installation detail. The thick thermoplastic construction provides the strength and durability to withstand the concrete placement. Available in three sizes: TB-6SN is 6” (150 mm) deep, TB-8 is 8” (200 mm) deep, and TB-10 is 10” (250 mm) deep.

VOLTEX®

Voltex® is a proven waterproofing membrane ideal for vertical and horizontal foundation surfaces. Voltex incorporates the high-swelling and self-sealing properties of VOLCLAY® sodium bentonite to form a monolithic, low permeable membrane to protect the structure from water ingress.

VOLTEX® DS

A bentonite-geotextile waterproofing membrane with Integrated Polyethylene Liner, VOLTEX® DS is comprised of two high strength geotextiles. The two geotextiles are interlocked by a patented needle-punching process which assures a consistent application of material.

VOLTEX® DSCR

VOLTEX DSCR is a highly effective waterproofing composite of high strength geotextiles,1.10 pounds of contaminant resistant sodium bentonite per square foot, and a integrally bonded polyethylene liner. The high swelling, low permeable, contaminant resistant sodium bentonite is encapsulated between the two geotextiles.

Helios Energy Research Facility

Berkeley, CA, USA

From design development to construction, CETCO’s expertise in waterproofing was called upon to ensure that the basement, housing expensive laboratory equipment, remains dry at all times. CoreFlex’s composite system also saved the added labor of a two-membrane installation process.

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Mercy Hospital Plaza

St. Louis, MO, USA

To minimize building exposure, poor air quality, and odors, this occupied hospital utilized COREFLEX to waterproof the plaza deck prior to installing a GreenScapes vegetated roof system, hard-scape and water features.

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Piper Tech Parking Deck

Los Angeles, CA, USA

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Ronald McDonald House

Chicago, IL, USA

CETCO provided the complete watertight green roof assembly for the nation’s largest Ronald McDonald House. Protected by CETCO’s COREFLEX® waterproofing membrane, three GreenScapes assemblies—intensive, extensive, and vegetated trays—were utilized to meet a challenging landscape design.

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Sandpiper Run Plaza Restoration

Pawley's Island, SC, USA

This restoration application used an extensive GreenScapes system with COREFLEX® waterproofing technology to create an ocean side lawn space for condo occupants. When used in restoration applications, CoreFlex® minimizes demolition, reduces building exposure and limits building down time.

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Shady Hills Gymnasium and Parking Garage

Cambridge, MA, USA

The original spec called for ULTRASEAL below slab with a layer of VOLTEX DS installed over it to provide protection from subsequent concrete operations. However, once the dewatering of the site began, it became apparent that there would be significantly more water at a greater flow rate.

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University of CA Berkeley Boalt Hall

Berkeley, CA USA

University of California Berkeley’s Boalt Hall has an iconic name. A law library set two stories below grade, Simpson Gumpertz & Heger, the waterproofing consultant, had a zero tolerance for water ingress on the new structure.

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Wake Forest University Hosp. Plaza Deck Restoration

Winston-Salem, NC, USA

Restoration of the plaza deck was required for watertightness of the hospital space below and reopening of the emergency room entrance. COREFLEX was quickly installed over the leaking hot-applied rubber membrane to complete the project on time with minimal building exposure.

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