User Manual

2
How is HOLD*BLAST used?
In use with vapor or mist blasting equipment, it is recommended to start with a mix of 1 gallon of
HOLD*BLAST per 50 gallons of potable water in the holding tank. Lower concentrations may be suitable
depending on the circumstances and type of mist/vapor blasting equipment used. No rinsing is required,
but if the surface is to be rinsed, such as to remove particulate matter, the same 1:50 solution is
recommended. (Poorer quality water can be used, but may require a higher concentration of
HOLD*BLAST.) Do not mix with other chemicals. After the substrate has been thoroughly blasted, it
should be allowed to dry prior to coating application. Remove any excess or ponded water using
compressed air or other means.
Typical time for “holding the blast” is approximately 72 hours.
Don’t let salt contamination ruin your project and your reputation!
IMPORTANT NOTE about salts --
Before application of HOLD*BLAST, surfaces should always be tested to assure soluble salt levels meet or
are below the acceptable level. (Testing after the application of a passivation [flash rust prevention]
treatment may mask the presence of surface salts under the blanketing layer formed.) High levels of
soluble salts can cause premature coating failure and degradation of the substrate.
Should high salt levels be encountered, it is strongly recommended to perform the mist blasting with
CHLOR*RID added to the mist water in a 1:100 dilution, followed by a rinse down with HOLD*BLAST added
to the rinse water in a 1:50 dilution.
For more information, contact:
CHLOR*RID International
800-422-3217
P.O. Box 908
Chandler, AZ 85244
[e-mail]