Everflex Aqua-Ban

Uses

• Bathrooms and shower recesses
• Laundries, toilets, and kitchens
• Patios, terraces, decks, and balconies
• Areas to be covered by stone or ceramic tiles

Benefits

• Ready to use – single pack
• Rapid drying for tiling sooner
• Non-toxic, low VOC – meets Green Star environmental criteria
• Water-based for easy clean-up with water
• Excellent adhesion to common building materials
• Compatible with a broad range of tile adhesives
• Part of a compatible waterproofing tiling system
• Inhibits mould and biological growth
• Tested in accordance with NCC, AS-4858 and AS-4654.1
• High permanent flexibility, Class III
• Virtually odourless
• Low permeability, allowing use on timber floors
• Micro fibre reinforced
• Does not re-emulsify once fully cured
• Tough and durable
• Suitable for internal and external applications

Application

Surface Preparation

All surfaces must be structurally sound, stable, dry, clean, and free of dust, loose, flaking, friable material, oils, grease, form release agents, curing compounds, and any other contaminants that may hinder adhesion.

Remove sharp edges and ridges, and chamfer external corners to 12mm. Non-structural cracks, holes, and deformities should be rectified. Substrates must be free from surface water and continual dampness. Concrete must cure for at least 28 days before application.

Screed and Render

A 3:1 sand and cement screed, or Gripset C-Bed engineered screed, is recommended where falls need to be created before membrane application. Sand cement screeds and cement render must cure for at least 4 days prior to primer application.

Priming

Primer use is always recommended, particularly on porous and warm surfaces. For internal applications, Everflex WBP is typically sufficient. For external applications such as roof terraces and balconies, Everflex VBS is advised.

Refer to the relevant primer Technical Data Sheet before use. Once the primer is touch-dry, apply Everflex Aqua-Ban within 24 hours. For metal surfaces, use a metal etch with either VBS or OP primer. For other non-porous surfaces, OP primer is normally sufficient.

Installation

Installation of the Aqua-Ban waterproof system must be carried out strictly in accordance with the requirements detailed in the National Construction Code.

Before use, mix Everflex Aqua-Ban thoroughly. Using a brush and/or roller, apply the first coat to achieve an even and consistent coat of approximately 0.75mm wet film thickness. Once the first coat has dried, apply a second coat at right angles to the first coat at 0.75mm wet film thickness.

Verify wet film thickness with a film thickness gauge. Everflex Aqua-Ban must be applied in a minimum of two coats, achieving a minimum dry film thickness (DFT) of 1mm. Average recoat time is 2–4 hours after becoming touch-dry, and within 24 hours, at 25°C and 50% humidity. Additional coats should be applied at right angles where required to achieve the correct DFT.

Waste Outlets, Penetrations and Angles

Floor wastes and puddle flanges should be rebated into the floor to allow water to drain readily. Fill all gaps and perimeters with Adheseal PU or Hi-Flex MS sealant.

Waterstops

Where required by the NCC, including door barriers, balcony edge trims, or shower waterstops, these should be sealed and secured with Adheseal PU or Hi-Flex MS sealant.

Gaps, Joints and Transitions

Apply a fillet forming a cove with Adheseal PU, Hi-Flex MS sealant, or suitable bond breaker to internal corners and over sheet joints. Bond breaker width should be 12mm for wet areas and 38mm for external above-ground gaps, joints, and internal corners.

For added protection, apply polyester reinforcing fabric to corners and joints, saturating it into the first coat of membrane. For dynamic cracks, expansion joints, and control joints, the use of Adheseal Elastoproof is recommended.

Limitations

• Do not apply when temperatures are below 10°C or above 35°C
• Limited UV resistance – not designed for long-term UV exposure and must be tiled or topped
• Do not apply on damp, wet, or contaminated substrates, or if rain is imminent
• Not suitable as an exposed membrane
• Not suitable for areas subject to negative hydrostatic pressure or rising damp
• Not intended for foot traffic

Acceptable Substrates

• Concrete
• Sand cement screed or engineered screeds
• Masonry / render
• Cement sheeting / underlay / external weatherboard / blue board
• Pre-cast concrete, once release agents have been removed or dissipated
• Wet area plasterboard / Villaboard
• Timber flooring, including structural plywood Type A (PAA JAS-ANZ)
• Brickwork and Hebel (aggregate block)