Hercules® 5 Gallon Cryo-Tek™ -100 Antifreeze
35284 - spec sheet
Features
- with metal, plastics and rubber piping, fittings, seals and other parts
- For heating systems requiring freeze protection as well as corrosion prevention
- Cryo-Tek is “GRAS” (Generally Recognized As Safe) for incidental contact with food
- The triple protection inhibitor stabilizes pH to prevent corrosion, chelates, hard water minerals, and inhibit scale and sediment formation
- For warranty product details, refer to the Oatey limited Warranty document
- Not for use with galvanized, CPVC or aluminum
- Approved for use in Rinnai I-Series Boilers
- Used in systems fabricated
- Blend of 55 percent virgin propylene glycol
35284 - spec sheet
Manufacturer Resources
Product Specs
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Fittings
- Product Type:
- General Fittings
- Product Finish:
- Pink
- Product Material:
- Liquid
OATEY 35284 – Frequently Asked Questions
1) Can I use Cryo-Tek -100 antifreeze in a galvanized or CPVC piping system?
No. Oatey Hercules Cryo-Tek -100 is not for use with galvanized, CPVC or aluminum. It is intended for systems fabricated with metal, plastics and rubber piping, fittings, seals and other parts. If your loop has galvanized piping or CPVC runs, pick a different fluid rather than risk the system.
2) What is Cryo-Tek -100 actually made of, and is it safe around potable or food contact?
It is a blend of 55 percent virgin propylene glycol, and Cryo-Tek is GRAS (Generally Recognized As Safe) for incidental contact with food. The fluid is pink, which makes leaks and cross-contamination easy to spot in a mechanical room.
3) Will Cryo-Tek -100 work in a Rinnai boiler?
Yes, Cryo-Tek is approved for use in Rinnai I-Series boilers. That is the only boiler line named for it, so for other brands check the boiler manufacturer's glycol requirements.
4) Does this antifreeze do anything besides freeze protection?
It handles corrosion too. The triple protection inhibitor stabilizes pH to prevent corrosion, chelates hard water minerals, and inhibits scale and sediment formation. That is why it is specified for heating systems that need freeze protection as well as corrosion prevention, rather than a plain glycol charge.
5) What size container does Oatey 35284 Cryo-Tek come in and what is the part number?
Oatey 35284 is a 5 gallon pail of Hercules Cryo-Tek -100 antifreeze. The manufacturer part number is 35284. One model, one size, so ordering by that number gets the 5 gallon pail every time.
6) Is Cryo-Tek -100 a concentrate I have to dilute, or is it ready to pour?
It ships as a pre-mixed blend at 55 percent virgin propylene glycol, so it goes into the system as supplied. Nothing to cut with water on site, which also means the freeze protection is consistent pail to pail across a multi-building job.
7) Is propylene glycol antifreeze like Cryo-Tek different from the ethylene glycol used in cars?
Yes, and the difference matters for building systems. Cryo-Tek -100 is propylene glycol based and is GRAS for incidental contact with food, which is why it turns up in hydronic heat, snowmelt and radiant loops where a heat exchanger sits near potable water. Automotive ethylene glycol is not rated for that kind of incidental contact and should never be dumped into a heating system.
How fast can I get the OATEY 35284 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 35284 come with a warranty?
Absolutely. The OATEY 35284 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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