Lc 252 is designed to be used for “passivating” open &
Closed loop systems to prevent corrosion. It is a liquid blend
Of nitrite and other corrosion preventives which protects not
Only steel surfaces but also copper and other metal as well.
The high concentration makes it a cost effective nitrite based
Passivating agent with the added advantage of being multimetal
Compatibility and thus do not require separation of
Non-ferrous parts from a system during passivation.
Application
Normally injected into the system that is previously filled with standard industrial
Grade water and circulated continuously under required pressure for about 1-2
Hours with hourly monitoring of the nitrite concention. A higher temperature help to
Accelerate the passivating process and therefore reduce operation time. An
Appropriate temperature suitable to the system and available resources is choosen
Between 35 – 950c
Dosage
Initial : 1 : 400 is suitable in most cases of passivation processes operating at
Optimum temperature between 50 – 700c. Depending on the quality of water used
Some adjustment in the amount may be required to maintain the ph of the solution.
An increase in concentration of lc 252 is necessary in badly soiled systems.
Additional amount of lc 252 may be required to be added during the circulation for
The passivation process in order to maintain the required control parameters while
Monitoring.
Handling & precaution
Avoid contact with acid, ammonium salts and activated carbon. No respiratory
Protection. Is required, however, maintain adequate ventilation. Use rubber gloves
And safety goggles when handling.
Packaging
Available in pail of 20 lt.. Can also be custom packaged.
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