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Attention: This product is special order only, delivery of product can take an estimated 1 week or more. Please contact us directly for more information.
Use RLA SAFE2O Moisture Curing Waterproofing Membrane for:
Waterproofing retaining walls, planter boxes, and under screeds where solvent-free and efficient single-coat solutions are required.
RLA SAFE2O is a single-component, liquid-applied waterproofing membrane that cures via atmospheric moisture and is based on Silyl Modified Polymer (SMP) technology. Designed as a safe alternative to traditional solvent-based membranes, SAFE2O is Green Tag certified and completely free from isocyanates. It provides excellent mechanical durability and adhesion across a wide range of substrates including concrete, render, screed, masonry, and fibre cement. Ideal for internal and external above-ground waterproofing applications, it complies with AS 4858 and AS 4654.1 standards, rated as a Class III membrane. Its ability to be applied in a single coat on horizontal surfaces makes it a cost-effective and time-saving solution for professional trades.
Key Features of RLA SAFE2O Moisture Curing Waterproofing Membrane
- Solvent-free and isocyanate-free for safe use in enclosed areas
- Single-coat application on horizontal surfaces reduces labour time
- Built-in root inhibitor suitable for subterranean applications
- High flexibility and toughness for durable performance
- Green Tag certified and compliant with Australian Standards
Technical Overview
- Chemical Properties: Silyl Modified Polymer (SMP)
- Application Temperature Range: 10°C to 35°C (50°F to 95°F)
- Tensile Strength: >1 MPa
- Elongation: >300%
- Water Vapour Transmission: 0.38g/24h/m²
- Dry Time: 4 hours at 23°C / 50% RH
- Coverage Rate: 1.4 kg/m² for single coat
Trade Professional Information
- Required Tools: Brush or medium nap roller, wet film thickness gauge
- Trade-Specific Tips: Apply in single coat for horizontal surfaces to 1.2mm wet film; use two 0.6mm coats on verticals
- Common Issues and Solutions: For cracks over 1mm, use RLA MAX SMP 25 to fill prior to membrane application
Storage and Shelf Life
- Storage Requirements: Store in cool, dry, and weatherproof environment
- Shelf Life Information: 12 months in sealed pail
- Temperature Considerations: Avoid application below 10°C or above 35°C
Certifications
- Global Green Tag Certification – Level A
- Complies with AS 4858 and AS 4654.1 Class III for wet area membranes
Frequently Asked Questions About RLA SAFE2O Moisture Curing Waterproofing Membrane
Q: How should RLA SAFE2O be applied for best waterproofing results?
A: On horizontal surfaces, apply a single even coat at a wet film thickness of 1.2mm. For vertical applications, apply two coats at 0.6mm each. Always use a wet film gauge to verify correct thickness.
Q: How does RLA SAFE2O perform in terms of durability and water resistance?
A: RLA SAFE2O has outstanding durability with >300% elongation and a tensile strength of >1 MPa. It meets Class III waterproofing requirements under AS 4858 and AS 4654.1 for internal and external applications.
Q: What substrates are compatible with RLA SAFE2O?
A: SAFE2O adheres well to concrete, screed, render, masonry, compressed/fibre cement sheets, and PAA structural/marine plywood. Metal or non-porous surfaces should be tested prior to application.
Q: What should I do if the membrane doesn’t adhere properly?
A: Ensure the surface is properly cleaned, cured, and primed. For cracks over 1mm, use RLA MAX SMP 25 to fill and prepare the substrate. Always test adhesion on smooth or non-porous surfaces.
Q: Is RLA SAFE2O safe to use indoors or in enclosed areas?
A: Yes. RLA SAFE2O is solvent and isocyanate-free, making it safe for indoor and confined applications. However, ensure adequate ventilation during application and curing.
Use RLA SAFE2O Moisture Curing Waterproofing Membrane for:
- Waterproofing retaining walls prior to backfilling
- Subterranean planter boxes requiring root resistance
- Under screed membranes for wet areas such as bathrooms or balconies
Why Use RLA SAFE2O Moisture Curing Waterproofing Membrane:
- Fast and efficient single-coat horizontal waterproofing
- Green Tag certified for safe use in sensitive projects
- Excellent adhesion to multiple substrates reduces preparation time
- Flexible and durable finish suitable for high-movement areas
How to apply RLA SAFE2O Moisture Curing Waterproofing Membrane:
- Ensure the substrate is clean, dry, and free from contaminants like oil, laitance, or curing agents.
- Prime the surface using appropriate RLA primers based on porosity (Porous, Non-Porous, or Damp conditions).
- Apply a bond breaker fillet using RLA MAX SMP 25 at all junctions, penetrations, and transitions.
- For horizontal areas, apply 1 coat at 1.2mm wet film thickness using brush or roller.
- For vertical surfaces, apply 2 coats at 0.6mm each, allowing the first to dry before recoating.
- Allow a minimum 48 hours before screeding or 72 hours before backfilling.
RLA SAFE2O Moisture Curing Waterproofing Membrane limitations:
- Do not apply if rain is imminent or during wet weather
- Not suitable as a UV-exposed or trafficable membrane
- Cannot be used under tiles without screed installation
- Not suitable for immersed applications like pools
- Do not apply below 10°C or above 35°C
- Should not be applied directly to particle board floors
Safety precautions when using RLA SAFE2O Moisture Curing Waterproofing Membrane:
- Personal Protective Equipment: Use gloves, protective clothing, and safety glasses
- Ventilation: Ensure adequate airflow, especially in confined or enclosed spaces
- Handling: Avoid skin contact; clean up spills immediately with suitable cleaner
- Follow the latest SDS for safe disposal and first aid advice
RLA SAFE2O Moisture Curing Waterproofing Membrane can be used on the following substrates:
- Concrete – fully cured (min. 28 days) with sound surface
- Render and screeds – cured for a minimum of 7 days
- Masonry – point flush and fill voids before application
- Compressed and fibre cement sheets – installed per manufacturer’s guidelines
- PAA certified structural and marine plywood – securely fastened and dry
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