Hercules® Universal Cryo-Tek™ Antifreeze

Hercules® Universal Cryo-Tek™ Anti-Freeze stabilizes PH to prevent corrosion, chelates, hard water minerals, and inhibits the formation of scale and sediment. Blend of virgin (not recycled) propylene glycol and exclusive Triple Protection additives. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.

UPC: 032628353305
Part #: 35330

Available in 3 variations

Key Features & Benefits

Can be used in hydronic heating systems, hydronic heating systems with aluminum heat exchangers
Can also be used in systems with galvanized piping
Smaller 1 gal size
Not tested for use with CPVC
Improves heat transfer and minimizes wear to moving parts
Meets and exceeds the corrosion protection requirements of ASTM D1384
Cryo-Tek™ Universal and all Cryo-Tek™ products is in.GRAS in. (Generally Recognized As Safe) for incidental contact with food
For warranty product details, refer to the Oatey Limited Warranty document

Specifications

Size:	1 gal.
Weight:	9.45 lb.
Brand:	Hercules
Product Type:	Universal
Material Compatibility:	Aluminum
Color:	Purple
Material:	Liquid

More Specifications

Technical Resources (9)

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Frequently Asked Questions

What are the differences between virgin propylene glycol and reclaimed/recycled propylene glycol?

Virgin propylene glycol has never been used previously. Some boiler manufacturers state in their warranties that antifreeze made with virgin propylene glycol is required or the warranty is voided. Recycled propylene glycol is captured and cleaned after use (mainly for de-icing aircraft). It is then considered a lower grade of propylene glycol and may still contain other ingredients even after cleaning. Hercules Cryo-Tek antifreeze is made only with virgin propylene glycol.

Are there specific products for aluminum boiler systems?

Yes. Use Cryo-Tek 100AL antifreeze for boilers with aluminum heat exchangers. Sludgehammer Universal Corrosion Inhibitor and Sludgehammer System Restorer & Noise Reducer is compatible with all metal heat exchangers, including aluminum.

Should I dilute Cryo-Tek antifreeze?

The answer depends on which Cryo-Tek antifreeze is being used, and what level of freeze protection is required. For more information, see this chart. Freeze point: The temperature at which crystals begin to form. Pumpable: The temperature at which there are sufficient crystals to impede the flow of the product. Burst protection: The temperature at which pipes burst.