Hercules® Cryo-Tek™ 35342 Food Grade Antifreeze, 55 gal, Liquid, Green, 1.054

A blend of food grade (not recycled) propylene glycol and high purity inhibitors, formulated for use in closed loop hydronic heating and cooling systems. Cryo-Tek FG is safe for use with potable water systems, water testing, geothermal loops and DWV systems. Cryo-Tek FG can also be used in radiant tube heating systems, most solar heating systems and geothermal loops. Cryo-Tek FG is compatible with PEX and elastomeric radiant tubing, commonly used materials for seals and bushings and provides corrosion protection for cast iron, steel, copper, brass and solder. Cryo-Tek FG should not be used in systems with galvanized piping as the zinc coating will be dissolved. Cryo-Tek is a 96% food grade propylene glycol blend that can be diluted with water to achieve the desired temperature protection for most systems. It has a lower freeze point and higher boiling point than water and is nonflammable, odorless, non -toxic, nonirritating and compatible with Hercules boiler stop leaks and heating system cleaner products. See the chart below for dilution ratios for the desired protection levels.

Hercules® Cryo-Tek™ Food Grade Antifreeze, 55 gal, Composition: Propane -1,2-Diol, Water, Liquid, Green, Odorless, 250 deg F, 1.054 Specific Gravity, 8.5 to 10, 998 g/L VOC