When sprayed on our metal railing it took the finish off... What can we do to restore the finish on the railing ? Wm Dalton

Hi, We are sorry to hear your finish came off. To set your mind at ease, Concrobium Mold Control has no chemicals in the product that would strip finishes. That being said, if the finish on a surface is already cracked, flaked or deteriorating applying any amount of liquid can make the situation worse. At this point, you may need to repaint to restore the finish. We hope this new information is helpful. We apologize again for the experience and we hope this does not prevent you from trying or using our products again in the future.