For heating systems requiring freeze protection as well as corrosion prevention, count on Hercules® Cryo-Tek™ Anti-Freeze. Its exclusive triple protection inhibitor system also protects against mineral deposits and sedimentation. Different versions of Cryo-Tek are designed for use in hydronic heating and cooling closed-loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems. It is non-flammable, odorless, non-toxic, non-irritating and compatible with Hercules boiler stop-leak and heating system cleaners. In addition, Hercules® offers a Cryo-Tek™ FG (Food Grade) Antifreeze formula with a blend of food grade propylene glycol and high purity inhibitors for use in closed loop hydronic heating and cooling systems.  Cryo-Tek FG is also safe for use with potable water systems, water testing, geothermal loops and DWV systems.

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