Hercules® Brush-on Block™ is an all-purpose, high-performance pipe joint and gasket sealing compound. Recomended for use on metals including aluminum, black iron, brass, copper, stainless steel, galvanized steel and plastics, including PVC and CPVC. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.
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