Any suggestions on how to remove rust stains from concrete..smooth walls?
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If nobody comes around with a poultice or remover, ask here: http://www.kuhlman-corp.com/ Alot of experience in this concrete company. There are all sorts of graffiti removers, the trick is to remove it, not dilute it and make it bigger.
Remodeling Contractor just outside the Glass City.
Quittin' Time
unluckeyjeff
Need more info. You can convert rust into iron phosphate with acid. Oxalic acid will remove some stains. Could you be a little more descriptive on your situation.
Mac
Sorry..I was describing interior concrete walls..finished product..very elaborate house..rust stains from the anchor bolts has bled onto the walls..the bolts are now primed and trem cladded but the stains are now the problem?
Oxalic acid.