User Manual

1
CHLOR RID International, Inc.
P.O. Box 908 Chandler, AZ 85244
Toll Free 800-422-3217 Office 480-821-0039 Fax [phone]
www.chlor-rid.com
HOLD*BLAST
FAQ when used with mist blasting
Why use HOLD*BLAST?
Steel surfaces, when wetted, typically flash rust due to a variety of reasons, yet a flash rusted surface often
is not acceptable. HOLD*BLAST is an easy to use, economical product that stops flash rust from occurring,
yet does not leave a film or residue to interfere with coating adhesion.
How does it work?
HOLD*BLAST is formulated specifically to passivate a metal surface. HOLD*BLAST’s biodegradable
formulation temporarily changes the active surface of metal to a less reactive state for long periods of time,
often several days. It does this by forming a temporary monomolecular layer, preventing the metal
surface from reacting with the atmosphere above the substrate; hence stopping the oxidation of steel.
Will it leave a residue?
Unlike other products on the market, HOLD*BLAST passivates the surface and is not a film-former. Its
chemical components are biodegradable, non-hazardous, and it is a safe and effective alternative to film-
forming chemicals. Surfaces treated with HOLD*BLAST do not need to be rinsed. The thin, temporary
hydroxide layer formed on the metal substrate will not interfere with coating performance or adhesion.
Is HOLD*BLAST compatible or approved?
Because HOLD*BLAST does not leave a residue on a surface there are no compatibility concerns. There
simply is no residue or concern with regard to compatibility. Coating manufacturers like our products
because they provide cleaner surfaces for coating application.
Will HOLD*BLAST remove salts from a surface?
Industry professionals are becoming increasingly aware of the importance of removing salt contamination
from surfaces prior to coating. Abrasive blasting alone is insufficient to remove chlorides, sulfates, nitrates
and other problematic soluble salts which have become adsorbed on the surface. Though water alone will
remove some minor amount of salt, HOLD*BLAST is an alkaline treatment for passivation of surfaces, not
for salt removal. CHLOR*RID, a mildly acidic product when applied, is functionally specific for disbonding
and removing salt contaminants.
Why use HOLD*BLAST versus other passivation products?
HOLD*BLAST is more economical to use than other products, and does not need to be combined with more
costly reverse osmosis or De-ionized water to work effectively. Also, unlike other passivators in the
marketplace, HOLD*BLAST will dissolve minerals (such as Ca and Mg) commonly found in potable water.
This feature allows many contractors to regularly use our product in HP and UHP equipment with great
success.
When is HOLD*BLAST typically not recommended?
A surface which has been passivated with HOLD*BLAST will flash rust if wetted by rain or condensation, for
example. Therefore, if the passivated object will be in a wet environment it may not be advisable to use
this product. If a surface is heavily contaminated flash rusting may occur.