Specification
Oatey Co. | 20600 Emerald Parkway, Cleveland, OH 44135 | P: 1.800.321.9532 | oatey.com
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LCS5248B 02/24
Data is subject to manufacturing tolerances.
Job Name Item #
Location
Engineer Contractor
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Representative
CRYO-TEK
™
-100
TECHNICAL SPECIFICATION
DESCRIPTION
• A blend of virgin (not recycled) propylene glycol and high purity
Triple Protection additives, formulated for use in closed loop hydronic
heating and cooling systems. Cryo-Tek can also be used in radiant
tube heating systems, most solar heating systems and geothermal
loops. Hercules’ exclusive Triple Protection formula stabilizes pH to
prevent acid corrosion, chelates hard water minerals and inhibits the
formation of scale and sediment. These components work together to
keep the system clean and operating efficiently by eliminating system
deposits, improving heat transfer and minimizing wear to moving parts
and seals. Cryo-Tek is compatible with PEX and elastomeric radiant
tubing, commonly used materials for seals and bushings and provides
corrosion protection for cast iron, steel, copper, brass and solder.
Cryo-Tek has not been tested for use in systems containing CPVC
plastic. Standard Cryo-Tek products should not be used in systems
containing aluminum. Cryo-Tek should not be used in systems with
galvanized piping as the zinc coating will be dissolved. Cryo-Tek is a
94-98% efficient heat transfer solution in most application dilutions. It
has a lower freeze point and higher boiling point than water and is non-
flammable, odorless, non -toxic, nonirritating and compatible
with Hercules boiler stop leaks and heating system cleaner products.
• Cryo-Tek -100: Contains virgin (not recycled) propylene glycol with
Triple Protection corrosion inhibitor, pre -mixed ready to use formulation.
Certified Performance: Freeze Protection Down
to -70°F / -57°C, Pumpable Down to -80°F / -62°C, and Burst
Protection Down to -100°F / -73°C. Cryo-Tek -100 can be diluted with
water for less severe conditions. (see Table II)
*Please check with equipment manufacturer of system to determine
compatibility with this product.
**Minimum flow protection levels are estimated and are dependent
on system and equipment.
PHYSICAL/CHEMICAL PROPERTIES
pH 9.0 - 9.5
Density lb/gal. 60°F - 65°F 8.78 lb./ gallon
Specific Gravity 60°F - 65°F 1.054
Specific Heat BTU/lb°F @ 160° F .843
Boiling Point 230°F/110°C
Appearance and Color Red liquid. Odorless.
MATERIAL SAFETY INFORMATION
FOR MORE INFORMATION ON THIS PRODUCT, REQUEST SAFETY
DATA SHEET (SDS) #7301C
For Delivery By Fax Call 1-800-321-9535
Internet See SDS section of www.Oatey.com
HMIS
®
ratings
Health: 0
Flammability: 0
Physical hazard: 0
PRODUCT NUMBER SIZE PACKING WEIGHT/CASE
35281 1 gal. 6 54.3 lbs
35284 5 gal. 1 47.8 lb s
35286 30 gal. 1 284.0 lbs
35287 55 gal. 1 520.0 lbs
ALSO AVAILABLE
35290 Refractometer - 1 0.25 lbs
35272 pH Meter - 1 0.3 lbs
APPLICATION/USES
• Use any Cryo-Tek Anti-Freeze in hydronic closed loop heating
and cooling systems, solar heating systems, and general plumbing
systems that require freeze protection. Operating Temperature
Range for Closed System: Up to 250°F.
• Add any Cryo-Tek product to protect pipes from freezing and
bursting. Also prevents freeze-ups in chiller systems, recreational
vehicles, seasonal homes, mobile homes, trailers, boats, sprinkler
systems, and industrial use.
• *For special applications which may not be covered on this or
other Oatey literature, please contact Oatey Technical Services
Department by phone 1-800-321-9532, or fax 1-800-321-9535,
or visit our technical database web-site at www.Oatey.com.
APPROVALS and LISTINGS
The virgin propylene glycol used in Cryo-Tek is “GRAS”
(Generally Recognized As Safe) for incidental contact with food.
Test Kits and Accessories
Freeze protection levels and corrosion protection levels should be checked
annually. Use Hercules Refractometer and pH Meter. Add additional
Cryo-Tek product if freeze protection is inadequate. Add Oatey
approved Corrosion Inhibitor if pH is below 8.5. (see Maintenance)



