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Hercules Base Hit

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Works fast and does not clog hydronic systems
Scientific formulation combines the unique action of a sealant, stop-leak and lubricant in a “one-shot” application
Silicone formulation serves as a lubricant, remedying most cases of squeaking pumps

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Hercules® Base Hit™ II hydronic system sealant seals and prevents leaks in ferrous, non-ferrous and radiant tubing. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.

Works fast and does not clog hydronic systems
Scientific formulation combines the unique action of a sealant, stop-leak and lubricant in a “one-shot” application
Silicone formulation serves as a lubricant, remedying most cases of squeaking pumps
Eliminates the risk of a small leak becoming larger