Technical Specifications

7. TEST THE SYSTEM
Once installed and fully operational, use Hercules Refractometer with Refractometer Reading Adjustment Chart and pH Meter
or Cryo-tek Test Strips to test fluid to assure proper freeze and corrosion protection. Note: An automotive coolant tester will not
work with cryo-tek or other propylene glycol anti-freeze mixtures.
8. MAINTENANCE
Systems with cryo-tek products installed should be tested annually for product concentration and inhibitor levels using Hercules
Refractometer with Refractometer Reading Adjustment Chart and pH Meter or cryo-tek Test Strips. If cryo-tek product
concentration levels are low, add cryo-tek product using the following formula:
If the corrosion inhibitor tests low, add one 8 oz. container of cryo-tek Inhibitor for every 20 gallons of fluid capacity of the system.
If the total system capacity is less than 20 gallons, add one 8 oz. container of cryo-tek Inhibitor. If after inhibitor addition and
thorough system mixing the corrosion inhibitor still tests low, add another 8 oz. container of cryo-tek Inhibitor for every 20 gallons
of system capacity. If after this addition the inhibitor still tests low, the system should be drained, cleaned, and recharged with fresh
cryo-tek.
ADDITIONAL APPLICATIONS
FOR TOILETS: Drain tank and bowl then add 1 quart or more of undiluted cryo-tek Original to each toilet bowl to prevent freeze-up.
FOR BOATS AND TRAILERS: For boats and trailers with pressurized hot water systems, see TABLE III. For these systems,
disconnect water tank and join inlet and outlet to form a bypass. Drain water tank thoroughly and add cryo-tek Original (diluted to
desired freeze protection, see Table III) to displace possible water pockets.
TABLE III (Boats and Trailers)
Size of Boat/Trailer Add Cryo-tek Original to capacity of water tank
Under 18 ft. 2-3 gal.
18 ft. - 23 ft. 3-4 gal.
23 ft. and over 4-5 gal.
Hercules Chemical Company, Inc.
111 South Street, Passaic, NJ 07055-9100
Phone: [phone] • Fax: [phone]
e-mail: [e-mail]
http://www.herchem.com
©2007 HCCI / KA / EW / 0207 / 2000
For Delivery by Fax Call 1-800-942-4636
Internet See MSDS section of
www.herchem.com
Mail Contact Hercules at address below or any
Hercules representative
MATERIAL SAFETY INFORMATION
FOR MORE INFORMATION ON THIS PRODUCT,
REQUEST MATERIAL SAFETY DATA SHEET (MSDS) #41 cryo-tek Original,
(MSDS) #40 cryo-tek -100,
(MSDS) #42 cryo-tek AG.
HMIS Hazard Warning 0-0-0-A.
INGREDIENTS CAS#
PROPYLENE GLYCOL 57-55-6
NJ-T.S.R. #31348300 5018P, 5002P
4
*For special applications which may not be covered on this or
other Hercules literature, please contact Hercules Technical
Services Department by phone [phone],
or fax [phone], or visit our technical database
web-site at www.herchem.com.
TOTAL SYSTEM CAPACITY (gal) X
= Number of gallons of cryo-tek product to be added.
(% cryo-tek - % cryo-tek in system)
(% cryo-tek used - % cryo-tek in system)
ISO 9001: 2000 Certified