Technical Specifications
cryo-tek
ANTI-FREEZE for heating and cooling systems
TM
APPROVALS AND LISTINGS
The virgin propylene glycol used in cryo-tek is “GRAS” (Generally Recognized As Safe) for incidental contact with food.
SPECIFIC 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.
SPECIFIC APPLICATIONS
†
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.
PHYSICAL PROPERTIES
cryo-tek Original cryo-tek -100 cryo-tek AG
pH 8.5 - 9.0 9.0 - 9.5 9.5 - 10.0
Density lb/gal. 60°F - 65°F 8.7 lb./ gallon 8.78 lb./ gallon 8.78 lb./ gallon
Specific Gravity 60°F - 65°F 1.04 1.054 1.054
Specific Heat BTU/lb°F @ 160° F .908 .843 .681
Boiling Point: 220°F / 104°C 230°F / 110°C 370°F / 188°C
Appearance and color: Blue liquid. Odorless. Red liquid. Odorless. Blue liquid. Odorless.
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
TM
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 use in systems containing galvanized components. 2. For open solar systems
and systems where operating stagnation temperatures are regularly over 300°F / 150°C. 3. For systems with concentrating solar
collectors or evacuated tube solar collectors. 4. In systems containing aluminum and operating temperatures over 160°F / 71°C.
(Please check with equipment manufacturer of system to determine compatibility with this product).
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.
INSTALLATION INSTRUCTIONS
1. CLEAN THE SYSTEM - It is recommended that any system, whether new or existing, be thoroughly cleaned prior to being charged with
cryo-tek products. Any system contaminated with dirt and other materials reduces efficiency and wears the system prematurely. New
systems need to be free of flux, solder residue, grease and any foreign particles. Most boiler manufacturers recommend cleaning new
systems with a solution of Tri-Sodium Phosphate (TSP), or Hercules boiler and heating system cleaner (Follow instructions on
container). Existing systems need to be flushed and cleaned to eliminate any build-up of rust, scale, lime and other non-organic matter.
These systems should be cleaned with an inhibited hydrochloric acid such as Hercules sizzle (except aluminum systems, check with
boiler manufacturer). All systems should be checked for leaks prior to installation of any cryo-tek product.
2
STOCK NO. SIZE PACKING WEIGHT/CASE
cryo-tek Original
35253 1 gal. 6 53.2 lbs.
35260 5 gal. 1 46.5 lbs.
35267 55 gal. 1 518.0 lbs.
cryo-tek -100
35281 1 gal. 6 54.0 lbs.
35284 5 gal. 1 46.9 lbs.
35286 30 gal. 1 286.0 lbs.
35287 55 gal. 1 521.0 lbs.
STOCK NO. SIZE PACKING WEIGHT/CASE
cryo-tek AG
35282 1 gal. 6 54.0 lbs.
35285 5 gal. 1 46.9 lbs.
35288 30 gal. 1 286.0 lbs.
35289 55 gal. 1 521.0 lbs.
SIZES AND PACKING
†
For special applications which may not be covered on this or other Hercules literature, please contact Hercules Technical Services Department by phone at
1-800-221-9330 or send a fax to 1-800-333-3456.
STOCK NO. SIZE PACKING WEIGHT/CASE
ALSO AVAILABLE
35271 Test Kit - 6-10 packs 0.3 lbs.
35290 Refractometer 1 0.25 lbs.
35272 pH Meter - 1 0.3 lbs.
35276 Inhibitor 8 oz. 24 17.8 lbs.
35279 Protection Tags Free/available upon request