Posted 02 October 2014 - 03:49 AM
If I understand this correctly you have painted drywall; but you did not say what kind of paint was used. Last year I walked thru a facility that had just put in brand new drywall because they got a deal on it and they also used "dry cleaning". Guess what?... the majority of drywall is not impervious, thus drywall by and of itself would normally not be acceptable and it doesn't matter what kind of cleaning you use, the code is pretty clear as to what is expected... However there are finishing coatings that could be used and as long as those coatings or materials are "approved" for use in a food factory you would be good to go. Frankly, the upkeep however would seem to be an excessive waste of labor when it would be better to have thought it thru and installed the correct wall material to begin with. Should have just used FRP to begin with.
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