Watts announces the addition of the ArmorTek advanced coating system to its ductile-iron backflow preventer valves. This advanced patent-pending technology provides three layers of protection to create an effective barrier, dramatically increasing resistance to corrosion, Watts explains. ArmorTek provides an advanced primer, which contains an electrochemical corrosion inhibitor. It significantly slows the spread of corrosion should the metal substrate become exposed from wear or impact. ArmorTek’s exclusive formulation also inhibits the growth of bacteria that cause microbial-induced corrosion or MIC.