Leaking wet areas mean costly callbacks. When compliant, under-tile waterproofing is critical for bathrooms, laundries, or external balconies, you need a system that performs. Everflex Aqua-Ban provides that assurance: a reliable, Class III elastomeric membrane, ready for tiling, that simply locks water out.
Everflex Aqua-Ban was formulated to be your compliant, water-based, and rapid-drying Class III elastomeric membrane. It creates a robust, seamless barrier specifically for under-tile applications, ensuring a reliable and straightforward waterproofing solution for your internal and external wet areas.
This is a single-component, ready-to-use membrane. Always mix Everflex Aqua-Ban thoroughly before application. Apply with a brush or roller in two coats at right angles to each other. Maintain an application temperature between 10 °C and 35 °C. You can typically recoat within 2 to 4 hours after touch-dry, with tiling possible after 48 hours of cure time. Ensure the substrate is primed correctly; use Everflex Primer WBP for internal areas or Everflex VBS Bitumen Primer for external applications.
For waste outlets and waterstops, seal all gaps and perimeters with Adheseal PU or Hi-Flex MS sealant. Form fillets at internal corners using these same sealants or a suitable bond breaker. For added protection over corners and joints, saturate polyester reinforcing fabric into the first coat of membrane.
Everflex Aqua-Ban typically follows a suitable primer on prepared and cured substrates. It forms the primary waterproof layer, applied in a minimum of two coats. Once cured for 48 hours, the membrane is ready for tiling using compatible tile adhesives like Gripset C-Lite or RLA Unigrip. The system is then completed with a sanitary silicone sealant such as Adheseal S100 Sanitary Silicone Sealant to seal all joints and perimeters.
Yes, Everflex Aqua-Ban is compliant with AS4654.1 for external under-tile applications. Ensure proper substrate preparation, use Everflex VBS primer, and achieve a minimum dry film thickness of 1.3mm over two coats.
Priming is always recommended for optimal adhesion, especially on porous or warm surfaces. Use Everflex WBP for internal areas or Everflex VBS for external applications like balconies, following the primer's specific TDS. Metal surfaces require an etch primer with VBS or OP primer.
No, Everflex Aqua-Ban has limited UV resistance and is not suitable as an exposed membrane. It must be tiled or topped for protection against long-term UV exposure and foot traffic.
No, Everflex Aqua-Ban is not designed for areas subject to negative hydrostatic pressure or rising damp. It functions as an under-tile waterproofing membrane, not a barrier against persistent subsurface water ingress.
Allow approximately 48 hours for full cure before tiling, assuming conditions of 25°C and 50% humidity. This ensures the membrane achieves its full performance properties before adhesive application. Cure times vary with environmental conditions.
| Application | Key benefit | Primary trades |
|---|---|---|
| Bathrooms and shower recesses | NCC compliant to AS-4858 (Class III). Forms a durable, seamless barrier that will not re-emulsify, preventing water ingress and mould growth. | Waterproofers, Tilers, Builders |
| Laundries, toilets, and kitchens | Low VOC (<1 g/L) for Green Star compliance, contributing to safer indoor air quality. Provides excellent adhesion to common building materials for reliable performance. | Tilers, Builders, Renovators |
| Patios, terraces, decks, and balconies (under tile) | Tested to AS4654.1 for external under-tile systems, ensuring compliance. Flexible (391% elongation) to accommodate substrate movement. | Waterproofers, Landscapers, Builders |
| Areas covered by stone or ceramic tiles | Tile adhesive-friendly, proven compatible with solvent-free and cementitious adhesives. Rapid drying allows tiling to commence sooner. | Tilers, Builders |
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.
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.
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 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.
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.
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.
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.
Warning: Causes eye irritation (H320).
Wear safety glasses with side shields or chemical goggles (AS/NZS 1337.1). Use chemical protective gloves (e.g., PVC), safety footwear or gumboots, overalls, and a PVC apron. Barrier cream and skin cleansing cream are also recommended.
If fumes, aerosols, or combustion products are inhaled, move to a well-ventilated area. General ventilation is usually sufficient; specific requirements for this product are not documented beyond general good practice.
Store in original, securely sealed containers in a cool, dry, well-ventilated area. Keep away from incompatible materials and foodstuffs. Do not allow wash water to enter drains; contact local waste management for disposal options. Recycle containers where possible.
Proper substrate preparation and priming are critical for the long-term performance and adhesion of Everflex Aqua-Ban, preventing callbacks.
Surface prep: Concrete must be structurally sound, dry, and clean, free of contaminants. Allow concrete to cure for at least 28 days before application. Remove sharp edges and chamfer external corners by 12mm.
Primer: Optional, but always recommended. Use Everflex WBP for internal applications or Everflex VBS for external. Apply within 24 hours of primer becoming touch-dry.
Surface prep: Screeds and cement render must cure for at least 4 days. Ensure surfaces are free of dust, loose material, and contamination. Remove any protrusions.
Primer: Optional, but always recommended. Use Everflex WBP for internal applications or Everflex VBS for external. Apply within 24 hours of primer becoming touch-dry.
Surface prep: Surfaces must be structurally sound, dry, clean, and free of dust, loose material, oils, and grease. Rectify non-structural cracks or deformities. Ensure the substrate is free from surface water.
Primer: Optional, but always recommended. Use Everflex WBP for internal applications or Everflex VBS for external. Apply within 24 hours of primer becoming touch-dry.
Surface prep: Ensure sheeting is clean, dry, stable, and free from contaminants. Remove sharp edges and chamfer external corners by 12mm. Fill gaps and create coves in internal corners with Adheseal PU or Hi-Flex MS sealant.
Primer: Optional, but always recommended. Use Everflex WBP for internal applications or Everflex VBS for external. Apply within 24 hours of primer becoming touch-dry.
Surface prep: Surfaces must be clean, dry, and free of rust, oils, or other contaminants. Follow manufacturer's instructions for metal preparation.
Primer: Required. Use a metal etch primer with either Everflex VBS or OP primer for optimal adhesion. Apply Everflex Aqua-Ban within 24 hours of primer becoming touch-dry.
| Property | Value |
|---|---|
| Product Type | Elastomeric Waterproof Membrane |
| Consistency | Thick Liquid |
| Colours | Grey, Blue |
| Density | 1.3 g/cm³ |
| pH | 9-10 |
| Water Solubility | Miscible |
| Application Temperature | 10°C to 35°C |
| Service Temperature | -40°C to 80°C |
| VOC Content | <1 g/L (Greenstar Compliant) |
| Elongation (AS 4858) | Class III, 391% |
| Elongation (AS 4654.1) | Class II |
| Water Absorption (AS 3558.1) | 0.75% |
| Resistance to Cracking (AS 3848) | Pass: No fatigue cracking exhibited |
| Permeability (ASTM E96) | 3.92 g/m²/24h |
| Internal Coverage (min 1mm DFT) | 1.5 L/m² (two coats) |
| External Coverage (min 1.3mm DFT) | Unspecified L/m² (two coats) |
| Recoat Time | 2-4 hours after touch-dry, within 24 hours (at 25°C & 50% humidity) |
| Tiling Ready Time | 48 hours (at 25°C & 50% humidity) |
| Cleanup | Water (while wet), mechanical (when cured) |
| Standards Met | AS4858:2004, AS4654.1:2012 |
Here are some common examples on where Everflex Aqua-Ban Elastomeric Waterproof Membrane used by our customers.
