Chloride Contamination on Abrasive

  • Published 1996 in


It may be true that some commercially available blast cleaning abrasives will reveal the presence of soluble chlorides or sulfate salts. Such abrasive contamination may originate from various sources. One potential source could be the raw material process water containing chloride or sulfate salts in solution. Contamination may also occur during the transportation of the abrasive along the seacoast via open hopper car or barge where it is subjected to salt contaminants from the atmosphere. Another source may be contaminants on or in the blasted surface that transfer to the abrasive and, upon recycling of the abrasive, can be transferred to the substrate.


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