Submittal Sheet
SUBMITTAL SHEET: Universal Cryo-Tek™  
2 
SPECIFICATIONS: 
Universal 
Cryo
-Tek™ 
WARNINGS OR CAUTIONS 
  Read all cautions and directions carefully before using this product.  
  Not for use in steam systems. 
  Not for use with CPVC pipe and fittings. 
  Use Hercules Boiler Liquid or Base Hit II to stop leaks on system containing Cryo-Tek products. 
  Use Hercules Boiler & Heating System Cleaner or Sizzle to clean system prior to using Cryo-Tek (see installations 
instructions).  
  Do not use in internal combustion engines as a coolant.  
  Do not use in water softeners. Disconnect all water softeners from system or provide back flow protection to 
prevent contamination of brine or resin bed. 
  Cryo-tek products are not recommended: 
1.  For open solar systems and systems where operating stagnation temperatures are regularly over 300°F 
/ 150°C. 
2.  For systems with concentrating solar collectors or evacuated tube solar collectors. 
CAUTION REGARDING COMPETITIVE PRODUCTS: 
Hercules Cryo-Tek products are formulated using virgin propylene glycol and high purity Triple Protection Additives 
for assurance of materials compatibility and non-toxicity characteristics. Dilution or mixing of Cryo-Tek products with 
other manufacturers’ products may compromise these critical requirements and is not recommended. 
PHYSICAL PROPERTIES 
pH        8.0 – 9.0 
Density lb/gal. 60°F - 65°F    8.7 – 8.8 lb./ gallon 
Specific Gravity 60°F - 65°F    1.054 
Specific Heat BTU/lb°F @ 160° F  .600 
Boiling Point       320°F / 160°C 
Appearance and color    Purple liquid. Odorless. 
MATERIAL SAFETY INFORMATION 
FOR MORE INFORMATION ON THIS PRODUCT, REQUEST SAFETY DATA SHEET (SDS) #7301E 
For Delivery By Fax 
Call 1-800-321-9535 
Internet 
See SDS section of www.oatey.com/technical-info/msds 
Mail 
Contact Hercules at address below or any Hercules 
representative 
HMIS® ratings   Health: 0 
Flammability: 0 
Physical hazard: 0 
SIZE & PACKING 
STOCK NUMBER 
SIZE 
PACKING 
WEIGHT/CASE 
Universal Cryo-Tek 
35330 
1 gal. 
6 
54.0 lbs 
35331 
5 gal. 
1 
46.9 lbs 
35332 
55 gal. 
1 
521.0 lbs 
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