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Use Everflex WPM for: Waterproofing wet areas, balconies, terraces, and under-tile applications in both internal and external environments.
Everflex WPM is a single-component, self-reinforced elastomeric waterproof membrane specifically formulated for under-tile applications. Tested to AS-4858:2004 and AS4654.1 standards, it meets the requirements for both internal and external use. Once cured, it forms a Class 3 waterproof barrier that is durable, flexible, and odourless. Its water-based formulation allows for easy cleanup and meets Green Star environmental criteria. The membrane's low permeability makes it suitable for timber floors, and its micro-fibre reinforcement enhances its strength and durability.
Key Features of Everflex WPM
- Rapid drying for earlier tiling, reducing project timelines.
- High permanent flexibility (Class III) to accommodate substrate movement.
- Low permeability, suitable for use on timber floors.
- Micro-fibre reinforced for enhanced durability and strength.
- Low VOC and non-toxic, meeting Green Star environmental criteria.
- Does not re-emulsify when immersed in water, ensuring long-term performance.
Technical Overview
- Chemical Properties: Single-component, elastomeric waterproof membrane
- Application Temperature Range: +10°C to +35°C (50°F to 95°F)
- Service Temperature Range: -40°C to +80°C (-40°F to 176°F)
- Elongation: 391% (AS 4858 Class III)
- Permeability: 3.92 g/m²/24h (ASTM E96)
Trade Professional Information
- Required Tools: Brush, roller, film thickness gauge.
- Trade-Specific Tips: Ensure proper surface preparation and priming. Apply two coats at right angles to achieve the required dry film thickness. Use Adheseal PU or Hi-Flex MS sealant for waste outlets and penetrations.
- Common Issues and Solutions: Avoid application on damp or contaminated substrates. Ensure proper curing to prevent delamination. Use the correct primer for the substrate and application.
Storage and Shelf Life
- Storage Requirements: Store in a cool, dry place between +10°C and +35°C.
- Shelf Life Information: Minimum 12 months from the date of manufacture.
- Temperature Considerations: Avoid extreme temperatures to maintain product integrity.
Certifications
- AS 4858:2004 compliant (Class III).
- AS 4654.1:2012 compliant.
- Green Star compliant (VOC < 1 g/L).
Frequently Asked Questions About Everflex WPM
Q: Can Everflex WPM be used for external applications?
A: Yes, Everflex WPM is suitable for both internal and external applications, including balconies and terraces, when applied according to the technical data sheet and relevant standards.
Q: How long does Everflex WPM take to cure before tiling?
A: Allow approximately 48 hours of cure time at 25°C and 50% humidity before tiling. Cure times may vary depending on atmospheric conditions and substrate porosity.
Q: Do I need to prime the substrate before applying Everflex WPM?
A: Priming is recommended, especially on porous and warm surfaces. Use Everflex WBP for internal applications and Everflex VBS for external applications like roof decks and balconies.
Q: What is the required dry film thickness for Everflex WPM?
A: A minimum of two coats is required to achieve a dry film thickness (DFT) of 1mm for internal applications and 1.3mm for external applications.
Q: Can Everflex WPM be used on timber floors?
A: Yes, Everflex WPM's low permeability makes it suitable for use on timber floors, including structural plywood Type A (PAA JAS-ANZ).
Use Everflex WPM for:
- Waterproofing wet areas like shower recesses, laundries, and kitchens.
- Creating a waterproof barrier on patios, terraces, decks, and balconies.
- Under-tile waterproofing in both internal and external environments.
- Providing a durable and flexible waterproof membrane on various substrates.
Why Use Everflex WPM:
- Rapid drying for faster project completion.
- High flexibility and durability for long-term performance.
- Low VOC and environmentally friendly.
- Easy application and cleanup.
- Compatible with various building materials.
How to apply Everflex WPM:
- Prepare the surface: ensure it is clean, dry, and free of contaminants.
- Prime the substrate: use Everflex WBP for internal or Everflex VBS for external.
- Apply the first coat: use a brush or roller to achieve a 0.75mm wet film thickness.
- Apply the second coat: at right angles to the first, also 0.75mm wet film thickness.
- Verify thickness: use a film thickness gauge to ensure proper DFT.
- Allow curing: approximately 48 hours at 25°C and 50% humidity.
Everflex WPM limitations:
- Do not use when temperatures are below 10°C or above 35°C.
- Limited UV resistance; must be tiled or topped.
- Do not apply on damp, wet, or contaminated substrates.
- Not suitable as an exposed membrane.
- Not suitable for areas subject to negative hydrostatic pressure or rising damp.
Safety precautions when using Everflex WPM:
- Personal Protective Equipment: Gloves, eye protection.
- Ventilation: Ensure adequate ventilation during application.
- Handling: Avoid skin and eye contact. Wash thoroughly after use.
Everflex WPM can be used on the following substrates:
- Concrete (after 28 days curing).
- 3:1 sand cement screed or C-Bed.
- Masonry/render (after 4 days curing).
- Cement sheeting/underlay/external weatherboard/blue board.
- Pre-cast concrete (after release agent removal).
- Wet area plasterboard/Villaboard.
- Timber flooring (structural plywood Type A).
- Brickwork, Hebel (aggregate block).
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