Pros, Join Our TradeMaster Program!
  • Seals and prevents leaks in ferrous, non-ferrous and radiant tube hydronic systems.
  • Works fast and does not clog vents, valves, pneumatic tanks, circulator impellers, coils or controls.
  • Normal operation of the system is not affected.
  • Equally effective on steel, cast iron or copper.
  • Add to old or new installations for leak protection and moving part wear prevention.
  • Compatible with Hercules cryo-tek or other types of propylene glycol-based anti-freeze products, chemical additives and boiler treatment compounds.
  • Will not harm rubber or plastic components. NSF registered/USDA authorized.
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Product Type:



Leak Prevention


12 oz.

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