Harvey™ 100% Propylene Glycol
Harvey™ 100% Propylene Glycol is for winterizing hydronic heating, cooling, potable water and closed loop solar systems. Contains inhibited propylene glycol which provides unsurpassed rust and metal corrosion protection. For more than 75 years, Harvey™ has offered a wide variety of products for the plumbing sector.
Part #: 016907
Key Features & Benefits
- Inhibited pure concentrate version of Harvey Heat-100A for aluminum
- Contains over 98% actives
- Contains 94% to 96% pure Propylene Gylcol with built-in inhibitor package to prevent corrosion
- Safe for all systems containing plastic, vinyl or rubber components
- Freight and space saver
- Dilutes with water.
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Technical Resources (4)
Available in 3 variations
Frequently Asked Questions
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.