Sustainable corrosion protection through epoxy powder coatings: Results from the 25-year Bad Bentheim Test Series
The durability of water supply systems depends significantly on the resistance of their components, particularly valves and fittings. The Bad Bentheim Test Series examined the long-term durability of epoxy powder coatings under real operating conditions over 25 years. The objective of the trial was to test the effectiveness of these coatings in corrosion protection under real conditions.

The results of the test are impressive: After 25 years of continuous operation, 18 out of 20 powder-coated samples showed no signs of corrosion or damage. Even artificially created defects, which would be potentially prone to corrosion, exhibited only minimal impairments. These excellent results confirm the high resistance of epoxy powder coatings, even under extreme conditions.

The sustainability of this coating technology is particularly noteworthy. The extraordinary durability leads to a significantly reduced need for maintenance and replacement of valves and fittings. This not only saves costs but also contributes to resource conservation by reducing the materials needed for repairs or replacement parts. Furthermore, the reduced maintenance effort helps to reduce the ecological footprint of water supply systems.

In addition to economic efficiency, epoxy powder coatings make a significant contribution to the environmental friendliness of water networks. The long lifespan of the coating means that repairs are needed less frequently, reducing both material consumption and energy expenditure. Therefore, this technology offers a sustainable solution for the long-term maintenance and operation of water supply systems.
To summarize, epoxy powder coatings are not only a highly effective solution for corrosion protection but also a sustainable choice for the future of water supply. Due to their longevity, they contribute significantly to the reduction of operating costs and environmental impacts, making them a future-proof technology for water network operators.