GEM WATER In 1997 the 100,000 gallon pedestal water tank in Gem, Indiana, created a ripple in the coatings industry when it became the first potable water tank in the country to use a moisture cure, zinc-rich aromatic urethane as an interior primer. “The idea of using a zinc-rich primer for potable water immersion was controversial at the time,” recalled Tnemec coating consultant Jerry Petro. The project featured the two-component, moisture-c

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