Reichhold, Inc. has introduced a patented waterborne epoxy curing agent, EPOTUF® 37-685, for industrial maintenance applications. The product is designed to provide the corrosion protection of solventborne coatings with waterborne chemistry. Coatings based on this new curing agent and EPOTUF 37-143 epoxy resin aqueous dispersion reportedly perform well on metal substrates, providing excellent corrosion resistance equivalent to many solventborne systems but at lower volatile organic compound (VOC) levels. While other waterborne epoxy systems tend to exhibit blistering and/or delamination when exposed to moisture, the new curing agent is designed to produce coatings with good adhesion to steel.

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