Denso has highlighted the use of its Archco 426 Epoxy coating for potable water infrastructure, as water utilities and asset owners place greater emphasis on corrosion protection, regulatory compliance and long-term asset performance.
The epoxy coating system is designed for use on drinking water assets including pipes, fittings, valves, pumps and storage tanks, where protection of water quality and structural integrity is critical.
According to Denso, Archco 426 Epoxy has been developed to meet the performance and regulatory requirements associated with large-scale potable water infrastructure, particularly where downtime, environmental compliance and lifecycle cost are key considerations.
Certified coating for drinking water applications
The coating is certified to NSF/ANSI/CAN 61 and 372 standards and complies with AWWA C210 requirements, confirming its suitability for contact with potable water. These certifications are increasingly important as regulators and utilities tighten expectations around materials used in drinking water systems.
Archco 426 Epoxy features an ultra-high solids formulation of more than 98% by volume, combined with very low volatile organic compound (VOC) levels. This allows the coating to be used in environmentally restricted areas while supporting air quality objectives during application.
Application efficiency and corrosion protection
The two-part epoxy system is designed for single-coat application without the need for a primer or induction time. It can be applied using airless spray, plural spray or roller methods, providing flexibility across different site conditions and asset types.
Denso says the coating achieves a tack-free cure in around seven hours at 25°C, with full cure in 24 hours, helping to reduce downtime during construction, refurbishment or maintenance programmes.
Protecting long-life water assets
The epoxy coating is intended for use on large-diameter water pipes, storage tanks, valves, meters and pumps, as well as assets exposed to immersion in fresh or salt water. High adhesion performance is designed to support long-term corrosion resistance and reduce ongoing maintenance requirements.
As water companies continue to invest in upgrading ageing infrastructure, protective coatings play an important role in extending asset life, protecting water quality and improving whole-life cost performance.
The focus on certified, low-VOC materials reflects wider industry efforts to balance infrastructure resilience, environmental performance and regulatory compliance across drinking water systems.
