Skip to main content
Home Back to top
Utility Nav
About Careers Contact Us Where to Buy

Cements, Primers & Cleaners Thread Sealants Copper Installation Putty, Caulks & Water Barriers Oils, Lubricants & Hand Cleaners Drain & Waste System Cleaners Heating Chemicals & Antifreeze Gaskets & Bolts Drains & Closet Flanges Shower Systems Supply Boxes Flashings Air Admittance Valves (AAV) Pipe Support Brass, Plastic & Commercial Tubular/Grab Bars Bath Waste & Overflow Baskets & Sink Strainers Pneumatic Test Balls Mechanical Test Plugs Testing Equipment / Tools & Accessories Pans & Stands Commercial Drains Rough-In Products
View All

Cherne Dearborn Harvey Hercules Keeney Oatey QuickDrain
View All

Commercial Plumbing Residential Plumbing Specialty Construction Waterworks
View All

Project Guides Videos Data Sheets (SDS) & Product Literature Product Catalogs FAQs Blog Case Studies BIM Revit 3 Part CSI, Master Spec ARCAT Blue Volt Training
View All

Oatey Brand Ambassadors Podcast Supplier Diversity Contact Us Subscribe
View All
About Careers Contact Us Where to Buy Select Region

Anti-freeze

< Back to Heating Chemicals & Antifreeze

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.

SubCategory List
Anti-freeze
Anti-freeze Accessories
Descaler
System Cleaners
System Maintenance
System Repair

We use cookies to anonymously collect information about how you use our site, monitor site performance, and improve your experience.

By using our website you agree to these Terms of Use.

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.  

Related Resources

Blog

7 Fall Maintenance Tips for Homeowners to Prepare for Winter

Read More
View More
the choice of plumbing professionals
Oatey
Resources
FAQs Videos Blog Case Studies Plumbing Terms Data Sheets (SDS) & Product Literature BIM Revit CSI 3 Part Spec Oatey Limited Warranty ARCAT Catalogs Blue Volt Training
Company Info
Supplier Diversity Supplier Diversity About Us Oatey University Careers Idea Portal
Resources
FAQs Videos Blog Case Studies Plumbing Terms Blue Volt Training
Technical Resources
Data Sheets (SDS) & Product Literature BIM Revit CSI 3 Part Spec Oatey Limited Warranty ARCAT Catalogs
Company Info
About Us Oatey University Careers Supplier Diversity News & Press Idea Portal
Connect With Us

Contact Us

Patents | Trademarks | Supply Chain Information | Privacy and Terms of Use
© 2022 Oatey. All Rights Reserved.

It appears that you're using an unsupported browser.

If you are currently using Internet Explorer we recommend you switch to Edge or another supported browser to enjoy the best experience Oatey.com has to offer.

Learn More

OK