Hercules Cryo-Tek GL48 Fire System Antifreeze

GL48 Cryo-tek Fire System Antifreezes are designed to be used in wet fire sprinkler systems. They are formulated to be used in place of water and other sprinkler system fluids where freezing can occur. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.

UPC: 032628352483
Part #: 35248

Available in 2 variations

Key Features & Benefits

Use in any environment where the potential for freezing conditions exists
Approved for use with CPVC and metal sprinkler systems
Pre-mixed blend of glycerin and water
Complies with NFPA Requirements for Wet Fire Suppression
Burst protection to -50°F (-46°C)

Specifications

Size:	5 gal.
Weight:	48 lb.
Brand:	Hercules
Product Type:	Fire System
Color:	Orange
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.