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Use Everflex HVUV for: Waterproofing roofs, balconies, wet areas, and surfaces exposed to UV, ensuring a durable, flexible, and long-lasting barrier.
Everflex HVUV is a premium-grade, single-component, self-reinforced elastomeric waterproof membrane engineered for applications exposed to UV radiation. This Class 3 membrane, compliant with AS 4858:2004 and AS 4654.1, forms a seamless, fully bonded, and highly flexible barrier that withstands maintenance foot traffic and prevents water re-emulsification. Ideal for a variety of substrates, Everflex WPUV/HVUV offers superior protection for roofs, balconies, wet areas, and more, ensuring long-term performance and durability.
Key Features of Everflex HVUV
- High UV Resistance: Specifically formulated for UV exposed applications, ensuring long-term durability and protection against weathering. For instance, on exposed roofs, it maintains its integrity and flexibility, preventing cracking and degradation.
- Class 3 Waterproofing: Provides a high-performance waterproof barrier, meeting stringent Australian standards for both internal and external use. In wet areas, it ensures complete protection, preventing water damage to underlying structures.
- Excellent Flexibility: Maintains flexibility even under varying temperatures, accommodating substrate movement without cracking. This is crucial for balconies and terraces where thermal expansion and contraction occur.
- Micro Fibre Reinforced: Enhances the membrane's strength and durability, making it suitable for areas with maintenance foot traffic. This reinforcement ensures longevity and reduces the risk of punctures or tears.
- Easy Application and Clean-up: Single-component and water-based, allowing for straightforward application and clean-up with water. This simplifies the application process for tradespeople, saving time and effort.
Technical Overview
Everflex HVUV is designed to create a seamless, elastomeric barrier that effectively prevents water ingress. Its formulation includes microfibres that enhance its tensile strength and flexibility. The membrane’s ability to cure into a tough, durable film makes it suitable for various substrates and applications. The product is also formulated to have a low VOC content, meeting Green Star environmental criteria, which is beneficial for both indoor and outdoor applications.
Chemical Properties: Alkyl Acrylate-Styrene Copolymer, Polyurethane emulsion, Talc. These components provide the membrane with its elastomeric properties, UV resistance, and durability.
Application Temperature Range: Apply between 10°C to 35°C (50°F to 95°F). Applying within this range ensures proper curing and adhesion. Avoid application in extreme temperatures or when rain is imminent to prevent compromised performance.
Application Information
- Required Tools: Brush, roller, film thickness gauge, Hi-Flex MS sealant, polyester reinforcing fabric (if needed).
- Trade-Specific Tips: Ensure proper surface preparation, including priming, to achieve optimal adhesion. Apply two coats at right angles to each other, verifying wet film thickness with a gauge. For corners and joints, use Hi-Flex MS sealant or Adheseal Elastoband for a robust seal.
- Common Issues and Solutions: If delamination occurs, ensure proper surface preparation and priming. For uneven curing, verify application thickness and environmental conditions.
Storage and Shelf Life
- Storage Requirements: Store in a cool, dry place between 10°C and 35°C (50°F and 95°F).
- Shelf Life Information: Minimum 12 months from the date of manufacture (DOM).
- Temperature Considerations: Avoid storing in extreme temperatures to maintain product integrity and shelf life.
Certifications
- Tested in accordance with AS 4858:2004 (Wet Area Membranes) and AS 4654.1:2012 (Waterproofing of roofs and associated flashings).
- Meets National Construction Code (NCC) requirements.
- Green Star compliant with low VOC content.
Frequently Asked Questions About Everflex HVUV
Q: How do I prepare surfaces before applying Everflex HVUV?
A: Ensure surfaces are structurally sound, clean, dry, and free from contaminants. Prime porous surfaces with Everflex WBP (internal) or VBS (external) primer. Rectify any cracks or holes before application.
Q: Can Everflex HVUV be used on timber flooring?
A: Yes, it can be used on timber flooring, including structural plywood Type A (PAA JAS-ANZ). Ensure the timber is clean, dry, and structurally sound before applying the membrane.
Q: What is the recommended application thickness for external areas?
A: For external areas, apply a minimum of two coats to achieve a dry film thickness (DFT) of 1.3mm. Verify the wet film thickness with a gauge during application to ensure proper coverage.
Q: How long should I wait before tiling over Everflex HVUV?
A: Allow approximately 48 hours cure time at 25°C and 50% humidity before tiling. Cure times may vary depending on atmospheric conditions and substrate porosity.
Q: What safety precautions should I take when using this product?
A: Wear gloves, safety glasses, and respiratory protection in poorly ventilated areas. Ensure adequate ventilation during application. Avoid contact with skin and eyes. Consult the SDS for detailed safety information.
Q: Can Everflex WPUV/HVUV be tinted?
A: Yes, up to 75ml of black Glycol tint can be added to change the colour, however this will affect the Solar Reflectance Index (SRI) of the applied finish.
Q: Is a primer always necessary?
A: The use of a primer is always recommended, particularly on porous and warm surfaces. For internal applications, Everflex WBP is typically sufficient, while for external applications like roof decks and balconies, Everflex VBS is recommended.
Use Everflex HVUV for:
- Waterproofing exposed roofs and under pedestal systems.
- Protecting wet areas, shower recesses, laundries, toilets, and kitchens.
- Sealing patios, terraces, decks, and balconies.
- Providing a waterproof barrier under tiles.
- Creating a durable, UV-resistant membrane on external surfaces.
Why Use Everflex HVUV:
- Ensures long-term protection against water damage with a Class 3 waterproof barrier. For example, on a balcony, it prevents water ingress that could damage the building structure.
- Maintains flexibility and durability under UV exposure, reducing maintenance and extending the lifespan of the waterproof layer. For instance, on a roof, it withstands harsh sunlight and temperature variations.
- Simplifies application with a single-component, water-based formulation, saving time and effort for tradespeople. This allows for quicker project turnaround and reduced labour costs.
- Provides a safe and environmentally friendly solution with low VOC content, contributing to Green Star ratings. For example, in residential projects, it ensures a healthier indoor environment.
- Offers versatile application on various substrates, making it suitable for diverse construction projects. This eliminates the need for multiple products and simplifies inventory management.
How to apply Everflex HVUV:
- Prepare the surface: Ensure it is clean, dry, and free from contaminants.
- Prime the surface: Apply Everflex WBP (internal) or VBS (external) primer as needed.
- Mix the membrane: Thoroughly mix Everflex WPUV/HVUV before use.
- Apply the first coat: Use a brush or roller to apply a 0.75mm wet film thickness.
- Apply the second coat: After 2-4 hours, apply a second coat at right angles, also at 0.75mm wet film thickness.
- Verify thickness: Use a film thickness gauge to ensure a minimum 1mm dry film thickness (1.3mm for external).
- Allow curing: Let the membrane cure for 48 hours before tiling or further work.
Everflex HVUV limitations:
- Do not apply below 10°C (50°F) or above 35°C (95°F).
- Do not apply on damp, wet, or contaminated substrates.
- Not suitable for areas with negative hydrostatic pressure or rising damp.
- Not suitable for areas subject to foot traffic greater than maintenance.
Safety precautions when using Everflex HVUV:
- Personal Protective Equipment: Wear gloves, safety glasses, and respiratory protection in poorly ventilated areas.
- Ventilation: Ensure adequate ventilation during application.
- Handling: Avoid contact with skin and eyes. Rinse thoroughly with water if contact occurs.
- Disposal: Dispose of according to local regulations.
Everflex HVUV 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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