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RLA 2 Part Cementitious MembraneUse RLA 2 Part for: Internal & external wet areas, swimming pools, retaining walls, and potable water tanks. RLA 2 Part: A Technical Overview RLA 2 Part is a premium two component cementitious membrane that delivers the ultimate combination of toughness and flexibility. It masterfully blends the durable, high adhesion characteristics of a cement based system with the flexible, crack resistant properties of an advanced acrylic polymer liquid. This
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RLA 2 Part: A Technical Overview
RLA 2 Part is a premium two-component cementitious membrane that delivers the ultimate combination of toughness and flexibility. It masterfully blends the durable, high-adhesion characteristics of a cement-based system with the flexible, crack-resistant properties of an advanced acrylic polymer liquid. This versatile formulation is engineered to provide a fully compliant, seamless waterproofing barrier for an exceptionally broad range of applications. From internal wet areas and external balconies to fully immersed swimming pools and AS 4020 certified potable water tanks, RLA 2 Part offers a single-system solution that provides engineered certainty and uncompromising performance.
214%
Elongation (AS 4858). A Class II flexibility rating that accommodates anticipated structural movement and substrate shifts, preventing cracks and ensuring a continuous, durable waterproof barrier.
Core Features & Specifications
- Fully Certified to Australian Standards: Independently tested to AS 4858 (Class II), AS 4654.1 (External), and AS 4020 (Potable Water), providing documented proof of performance for specifiers.
- Suitable for Full Immersion: Engineered for continuous water immersion in swimming pools, ponds, and water features after a 7-day cure, providing a tough and durable barrier.
- Fast Drying & Recoat Time: Ready for recoat in just 2-4 hours and tiling or screeding in 24 hours, significantly accelerating project timelines for follow-on trades.
- High Adhesion Strength: Creates a tenacious bond to correctly primed substrates, ensuring the membrane system acts as a single, monolithic layer that resists delamination.
- UV Stable Formulation: Can be left exposed to UV light during the construction phase without degradation, providing greater flexibility with project scheduling.
The RLA 2 Part Advantage
- Ultimate Project Versatility: Use a single, trusted system for a huge range of applications – from showers and balconies to retaining walls and potable water tanks, simplifying inventory and training.
- Achieve Compliance with Confidence: Extensive third-party testing to key Australian waterproofing standards eliminates compliance risks and provides engineered certainty for your projects.
- Accelerate Project Schedules: The fast-drying formulation allows for subsequent trades (tilers, screeders) to get on-site sooner, improving overall job efficiency and profitability.
- Tough & Durable Finish: The cementitious base provides a robust, durable membrane that resists damage during the construction process and provides a long-service life.
Proactive Troubleshooting
Scenario: Applying to an Unprimed or Incorrectly Primed Substrate
Potential Outcome: Poor adhesion, blistering, or complete delamination of the membrane. Porous substrates can draw water from the mix too quickly, causing pin-holing and a compromised, leaky film.
Adheseal Best Practice: Priming is mandatory. Use RLA Porous Primer on absorbent surfaces like concrete, RLA Non Porous Primer on dense substrates like CFC sheeting, or RLA Moisture Seal on damp substrates per moisture test results.
Scenario: Insufficient Film Thickness (DFT)
Potential Outcome: The membrane fails to meet the performance requirements of a Class II membrane. It will not bridge cracks effectively and is highly susceptible to developing pinholes, leading to inevitable leaks and costly callbacks.
Adheseal Best Practice: Apply a minimum of two coats to achieve a total Dry Film Thickness (DFT) of 1.2mm. Use a wet film thickness gauge during application to ensure the minimum coverage of 1.5 litres/m² is consistently met across the entire area.
Applications in Practice: Trade Scenarios
For Waterproofers — Balcony & External Wet Areas
The Professional's Challenge
Deliver a fully compliant AS 4654.1 system that can withstand external exposure and substrate movement, while ensuring a uniform film build for reliable, long-term performance.
The Adheseal Solution: Engineered Certainty in Practice
The Class II flexibility of RLA 2 Part handles typical balcony movement. Its UV stability and fast cure time make it a reliable choice for external applications. A consistent two-coat application, verified with a WFT gauge, ensures compliance is met.
Best Practice Note
Detail all perimeters, junctions, and outlets with the Elastoproof Joint Band system, fully embedded between the two membrane coats, to create a seamless, monolithic waterproof barrier as required by the standard.
For Pool Builders — Immersed Applications
The Professional's Challenge
Construct a durable, tile-ready waterproof shell that performs under the constant hydrostatic pressure of permanent immersion and is certified safe for use in pools, ponds, and potable water tanks.
The Adheseal Solution: Engineered Certainty in Practice
RLA 2 Part is purpose-built for immersion, providing a tough, durable finish. Its AS 4020 certification provides the compliance needed for potable water applications. The system is ready for tiling after 24 hours and full immersion after a 7-day cure.
Best Practice Note
Ensure concrete substrates have cured for a minimum of 28 days before priming and application. The full 7-day cure time for the membrane is critical and must be observed before filling to ensure maximum durability.
RLA 2 Part Cementitious Membrane
Item no
:
91248672678
US$ 125.61
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Min. order:
1piece
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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