A chemical storage tank fire inaMid-Atlantic ( US ) galvaniz- ing plant required quick cleaning of heavy accumulation of burned plastic, char, soot and aged contaminantsfrom concrete walls and ceilings. Plant management hired Maintenance Contract Services,Inc. ( MCS ) to clean and restore 50,000 ft 2 ( 4,645m 2 ) in the pickling area of the plant while many manufacturing operations safely contin- ued. After considering other cleaning and abrasive blasting technologies, MCS chose to use the Sponge-Jet Sponge Blasting TM System and gentle Green Sponge Media TM abra- sives to complete the project, which was based on a few key process characteristics: ¦ Speed of Cleaning - Manufacturing operations had to continue during the cleaning process. As a result, a fast technology was required. The

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