Rasolastik ADV is a high‑performance two‑component cementitious waterproofing membrane for both internal and external wet area applications in residential, commercial, and public buildings. It is approved for use in swimming pools, spas, water features, balconies, terraces, podium decks, bathrooms, showers, and laundries prior to tiling. The membrane provides reliable protection against water ingress in areas subject to full water immersion, constant moisture, and thermal cycling.

It can be applied over stable cementitious substrates including in‑situ concrete, precast concrete panels, cement screeds, cement‑lime mortar, cement plaster, plasterboard, and existing ceramic tile surfaces. Rasolastik ADV is compatible with porcelain, ceramic, and natural stone tile finishes, making it ideal for tiled waterproofing systems in high‑humidity zones and submerged environments.

When installed to a minimum dry film thickness of 2mm for standard wet areas, or up to 3mm for immersed applications such as swimming pools, it meets the requirements of NZBC Clause E3 Internal Moisture and Clause E2 External Moisture. BRANZ Appraised for both internal (No. 542) and external (No. 541) waterproofing, Rasolastik ADV is suitable for all New Zealand climate zones, including coastal, high‑rainfall, and high‑UV environments, provided it is fully covered. It is also compatible with under‑tile heating systems and can be incorporated into seismic‑resilient installations when used with compliant movement joint detailing in accordance with TANZ Best Practice and IWAM guidelines.

• Not suitable for application over bitumen, painted surfaces, or non‑porous coatings unless approved and primed in accordance with the technical data sheet.
• Must not be applied to substrates with rising damp or moisture content above 6%.
• Not suitable for areas subject to negative water pressure or hydrostatic counterthrust.
• Requires application in two or more coats to achieve a minimum dry film thickness of 2 mm for internal wet areas and up to 3 mm for submerged applications such as pools and water features.
• Do not exceed a total system thickness of 3 mm.
• Not UV‑resistant and must be covered.
• Incompatible with unstable substrates such as unreinforced timber or surfaces subject to excessive movement.

Rasolastik ADV is BRANZ Appraised as both an external waterproofing membrane (Appraisal No. 541) for compliance with NZBC Clause E2 External Moisture and an internal waterproofing membrane (Appraisal No. 542) for compliance with NZBC Clause E3 Internal Moisture. The membrane also supports compliance with NZBC Clause B2 Durability, providing a minimum 15‑year service life when installed according to the manufacturer’s instructions, and NZBC Clause F2 Hazardous Building Materials, as it is solvent‑free, low VOC, and non‑toxic.

The product meets EN 14891:2012 performance requirements for liquid‑applied waterproof membranes under ceramic tile finishes, including crack‑bridging, bond strength, water impermeability, and resistance to chlorinated water, freeze‑thaw cycling, and thermal variation. It also complies with AS 4858:2004 for Class II membrane performance in internal wet areas.

When applied to the specified dry film thickness of 2mm for wet areas and up to 3mm for submerged applications, Rasolastik ADV delivers long‑term waterproofing protection in line with TANZ Best Practice Guidelines and the IWAM Code of Practice. It is suitable for use in all New Zealand climate zones, including coastal, high‑rainfall, and seismic regions, provided it is fully covered with a tile or stone finish.

Rasolastik ADV has been wdiely used in both New Zealand and international markets as a high‑performance waterproofing membrane. In New Zealand, it has been installed in a wide range of residential, commercial, and public projects, including external fascades, swimming pools, balconies, terraces, bathrooms, and podium decks. Its performance is backed by BRANZ Appraisals No. 541 (external) and No. 542 (internal), making it a trusted choice for council‑approved projects requiring PS3 documentation.

Globally, Rasolastik ADV is part of the Technokolla product range, which has been used extensively throughout Europe in high‑humidity and submerged applications, including sports facilities, aquatic centres, hospitality developments, and multi‑storey apartment complexes. Its proven ability to perform in demanding environments subject to full immersion, thermal cycling, freeze‑thaw exposure, and chlorinated water makes it an ideal choice for New Zealand’s diverse climate conditions.

Its long‑term track record underpins its acceptance by architects, waterproofing contractors, and tilers seeking a membrane that meets NZBC E2/E3 compliance, TANZ Best Practice standards, and IWAM Code of Practice requirements while delivering consistent waterproofing integrity over the design life of the project.

Rasolastik ADV provides exceptional flexibility, allowing it to accommodate structural movement and thermal expansion without compromising waterproof integrity. It maintains its performance under thermal cycling, freeze‑thaw conditions, and immersion in chlorinated water, making it suitable for pools, spas, and other submerged applications when covered.

The membrane is impermeable to water at 1.5 bar pressure for 7 days as tested to EN 14891, and achieves a crack‑bridging capability of approximately 1.35 mm at standard conditions and up to 2.3 mm when reinforced with mesh at ‑20 °C. Its Class II rating under AS 4858 confirms its suitability for demanding internal wet area and submerged applications.

Rasolastik ADV is solvent‑free and low VOC, with Eurofins A+ certification for indoor air quality, supporting safe installation in enclosed environments such as residential bathrooms, commercial kitchens, and aquatic facilities. It contains no hazardous or Red List materials, meeting NZBC Clause F2 for Hazardous Building Materials.

When incorporated into a compliant tiling system, Rasolastik ADV contributes to NZBC B2 Durability by delivering a minimum 15‑year service life in internal and external wet area applications. It aligns with TANZ Best Practice Guidelines and IWAM Code of Practice recommendations for liquid‑applied membranes, ensuring best‑practice installation outcomes and long‑term moisture protection.