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Use Everflex VBS for: Priming damp substrates, negative pressure vapor barriers, and sealing green concrete.
Everflex VBS is a high-performance, 2-part water-based epoxy designed for professional use. It serves as an effective primer for damp substrates and a robust vapor barrier capable of withstanding up to 25m of hydrostatic pressure. Its low VOC formulation and rapid drying properties make it an ideal choice for both internal and external applications. This product ensures excellent adhesion to various building materials, providing a durable and reliable solution for preventing water seepage and permeation.
Key Features of Everflex VBS
- Damp Substrate Priming: Effectively primes damp concrete, screeds, and masonry, ensuring strong adhesion for subsequent coatings.
- Negative Pressure Vapor Barrier: Withstands up to 25m of hydrostatic pressure, ideal for below-ground applications and preventing water ingress.
- Low VOC Formulation: Environmentally friendly and safe for indoor use, meeting "Green Star" criteria.
- Rapid Drying: Allows for earlier overcoating, increasing project efficiency.
- Versatile Application: Suitable for various substrates, including concrete, timber, and masonry.
- Durable and Long-Lasting: Once fully cured, it does not re-emulsify, ensuring long-term performance.
Technical Overview
Everflex VBS is a 2-part water-based epoxy system designed for optimal performance in demanding conditions. Its low water vapor permeance and high hydrostatic pressure resistance make it an excellent choice for vapor barrier applications. The product's consistency allows for easy brush or roller application, ensuring even coverage and a continuous film build. The ability to create a repair paste with Portland cement and kiln-dried sand adds to its versatility.
Chemical Properties: Water-based epoxy, providing a durable and chemically resistant barrier.
Application Temperature Range: 10°C to 35°C (50°F to 95°F), ensuring reliable application in various climates.
Application Information
- Required Tools: Electric mixer, brush, roller, mixing containers, and appropriate PPE.
- Trade-Specific Tips: Ensure thorough mixing for optimal performance. For highly porous substrates, use a 20% diluted coat as a primer. Repair all cracks and holes before application. Apply subsequent coats within the recoat window for best adhesion.
- Common Issues and Solutions: Poor adhesion can occur if surfaces are not properly prepared. Ensure surfaces are clean, dry, and free of contaminants. Inaccurate mixing can lead to poor curing; always mix in a 1:1 ratio.
Storage and Shelf Life
- Storage Requirements: Store in a cool, dry place between 5°C and 35°C (41°F and 95°F).
- Shelf Life Information: 2 years.
- Temperature Considerations: Avoid storing in extreme temperatures to maintain product integrity.
Certifications
- Meets "Green Star" environmental criteria.
Frequently Asked Questions About Everflex VBS
Q: Can Everflex VBS be applied to damp concrete?
A: Yes, Everflex VBS is specifically designed for priming damp substrates, including concrete, screeds, and masonry.
Q: What is the mixing ratio for Everflex VBS?
A: The mixing ratio is a simple 1:1 by weight or volume. Mix Part A and Part B thoroughly until a uniform color is achieved.
Q: Can Everflex VBS be used as a negative pressure vapor barrier?
A: Yes, Everflex VBS can withstand up to 25m of hydrostatic pressure, making it ideal for negative pressure vapor barrier applications.
Q: What is the recoat time for Everflex VBS?
A: The recoat time is 4-24 hours. If the subsequent coating cannot be applied within this window, an additional coat of VBS is advised.
Q: How do I clean up Everflex VBS?
A: While the product is still wet, tools and spills can be cleaned with water. Cured product can be removed by mechanical means.
Q: What are the limitations of Everflex VBS?
A: Do not apply to metallic surfaces, use when temperatures are below 10°C or above 35°C, or apply to surfaces with standing or flowing water. Limited UV resistance requires overcoating for external applications.
Q: Can Everflex VBS be tinted?
A: Everflex VBS is supplied in light grey but can be tinted. Contact Adheseal's technical department for more information.
Use Everflex VBS for:
- Priming damp concrete and masonry.
- Creating negative hydrostatic pressure vapor barriers.
- Sealing green concrete.
- Priming external substrates.
- Preventing water seepage and permeation.
- Priming for waterproofing systems.
- Priming for self-levelling compounds.
- Priming for timber flooring applications.
- Priming for floor coating systems.
Why Use Everflex VBS:
- Versatility: Acts as both a primer and vapor barrier, reducing product needs.
- Ease of Use: Water-based epoxy allows for easy cleanup and application.
- Environmental Friendliness: Low VOC content, meeting "Green Star" criteria.
- Durability: Provides a tough, durable barrier that does not re-emulsify.
- High Hydrostatic Resistance: Withstands up to 25m of pressure, ideal for demanding applications.
- Rapid Drying: Allows for faster overcoating and project completion.
How to apply Everflex VBS:
- Prepare the Surface: Ensure the surface is clean, dry, and free of contaminants. Repair any cracks or holes.
- Mix the Components: Pre-stir Part A and Part B separately. Combine in a 1:1 volume ratio and mix thoroughly with an electric mixer.
- Primer Application: Apply by brush or roller at 4-6 m²/L. For porous substrates, use a 20% diluted coat first.
- Vapor Barrier Application: Apply a primer coat (10% diluted), followed by at least two undiluted coats at 5 m²/L per coat. Aim for a 0.33mm dry film thickness.
- Overcoating: Apply subsequent coatings within 4-24 hours. If outside this window, apply an additional coat of VBS.
- Clean Up: Clean tools with water while the product is wet. Cured product requires mechanical removal.
Everflex VBS limitations:
- Do not apply to metallic surfaces.
- Do not use when temperatures are below 10°C or above 35°C.
- Limited UV resistance; requires overcoating for external applications.
- Do not apply to surfaces with standing or flowing water.
- Not suitable as an exposed coating.
Safety precautions when using Everflex VBS:
- Personal Protective Equipment: Wear rubber boots, gloves, apron, safety glasses, and a respirator if needed.
- Ventilation: Use with adequate ventilation. If inhalation risk exists, wear an organic vapor/particulate respirator.
- Handling: Avoid skin and eye contact. Wash hands thoroughly after use.
- First Aid: Refer to the Safety Data Sheets for detailed first aid information for Part A and Part B.
Everflex VBS can be used on the following substrates:
- Concrete (after 14 days curing)
- 3:1 sand cement screeds
- Masonry/render (after 4 days curing)
- Cement sheeting/underlay
- External weatherboard/blue board/Scyon/AAC systems
- 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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