Enviro 500 EXT: Ultra-Low VOC Water-Based Membrane for External Applications
Superior External Waterproofing with Unmatched Environmental Credentials
Enviro 500 EXT represents the pinnacle of external waterproofing technology, combining exceptional performance with outstanding environmental characteristics. As a water-based, single-component modified polyurethane membrane, it delivers an ultra-low VOC content of just 12g/L - one of the lowest in the industry - while maintaining the high flexibility and durability expected from premium polyurethane systems. Specifically engineered for external environments, it features cure-controlled drying technology that prevents premature skin formation, ensuring reliable application even in challenging hot and windy conditions that typically compromise other water-based products.
Advanced Performance for Demanding External Environments
This membrane's technical specifications make it ideal for the harshest external applications. With an extraordinary 1400% elongation, it accommodates significant structural movement and bridges existing and future cracks with ease. Its excellent vertical hold-up prevents sagging on vertical surfaces, while promoting superior adhesion for subsequent tile adhesives and decorative coatings. Certified to both AS 4654.1 for external membranes and AS 4858 for internal wet areas, it provides comprehensive protection across all building zones, from exposed terraces and balconies to protected podiums and roof areas.
Comprehensive External Application Solutions
Enviro 500 EXT is the specified choice for a wide range of external waterproofing scenarios. It provides robust protection for external balconies, terraces, podiums, and decks where constant weather exposure demands maximum durability. Its performance characteristics make it equally suitable for external wet areas, roof terraces, and planter boxes. The distinctive Santorini Green colour ensures visual confirmation of complete coverage during application. When combined with Enviro 250 NS UV topcoat, it creates a complete system for exposed areas requiring additional UV protection and light pedestrian traffic capability.
Professional-Grade System with Enhanced Application Control
Supplied in 15L pails with a 12-month shelf life, Enviro 500 EXT forms part of a complete professional waterproofing system. Application at a minimum 1.0mm DFT across two coats ensures consistent protection, with the cure-controlled formula providing extended working time in adverse conditions. The system is supported by Envirosystems' full range of compatible primers, sealants, and reinforcement tapes for comprehensive detailing. For specifiers and applicators seeking an environmentally advanced, high-performance external waterproofing solution that doesn't compromise on flexibility or durability, Enviro 500 EXT delivers certified performance with enhanced application reliability.
