Duram Multithane ATC: Advanced Aliphatic Polyurethane Topcoat
Superior UV Protection for Exposed Waterproofing Membranes
Duram Multithane ATC is a high-performance, moisture-curing, aliphatic polyurethane topcoat engineered to provide ultimate protection for exposed waterproofing systems. Its advanced cross-linked technology offers exceptional resistance to UV radiation, preventing the degradation, chalking, and colour fade commonly associated with standard membranes. This product is specifically formulated as a compatible finishing layer for the Duram Multithane range and Duram 195, significantly extending their service life by shielding them from the harsh Australian climate. By forming a tough, flexible, and seamless barrier, Multithane ATC ensures the long-term integrity and performance of the entire waterproofing system.
Key Features and Professional Benefits
Multithane ATC delivers a suite of benefits designed for durability and performance. Its aliphatic chemistry provides superior colour fastness and UV stability, passing over 2000 hours of accelerated QUV weathering tests. The product cures to form a remarkably flexible membrane with over 600% elongation, allowing it to withstand structural movement without cracking. It is also highly resistant to pedestrian traffic, chemicals, and punctures, making it an ideal standalone coating for balconies and walkways. With a fast cure time, usually within 24 hours, it helps projects stay on schedule while meeting Green Star environmental criteria.
Primary Uses and Application Surfaces
The primary purpose of Multithane ATC is to act as a protective topcoat over compatible Duram polyurethane waterproofing membranes like the Multithane range and Duram 195. It is perfect for any exposed application, including rooftops, balconies, terraces, and podiums, where UV degradation is a concern. Furthermore, its high strength and wear resistance make it suitable as a final, trafficable surface for pedestrian areas. It is designed for application over fully cured, clean, and stable polyurethane membranes, ensuring a seamless and fully integrated protective layer.
Trusted Performance and Application Guidelines
As a product from Tremco CPG, Multithane ATC is backed by rigorous testing and Australian expertise. Supplied in a 15-litre pail, it typically covers 2.5 - 3.0 m² per litre at the recommended 300-micron dry film thickness. It is crucial to apply the product to perfectly dry substrates to prevent gassing and bubbling, and it is not suitable for direct contact with high concentrations of chlorine. For optimal performance, surfaces should be clean and primed as per technical guidelines. This topcoat is the definitive solution for enhancing the durability and aesthetics of any exposed waterproofing system.
