Cleaning plate etch off from concrete

Discussion in 'Ink' started by pjnestor, Nov 7, 2019.

  1. pjnestor

    pjnestor Member

    Apr 2014
    anchorage, alaska
    Things are slow at the shop so we take time to oil and detail clean our machines. I am now onto cleaning and rearranging my work area. I have noticed some white stains on the concrete that are from the plate etch I use for our photo direct image silver master plates. I have tried every chemical in the shop to clean this up, nothing has worked. Some say to use a fine grade of sandpaper and then soak the spots in vinegar which is another acid that I'm uncomfortable using. I have tried deglazers, calcium eliminator, WD 40, plain soap and water, Windex, blanket wash, etc. Nothing seems to work. I'll try the sandpaper/vinegar thing next because I haven't tried that. Of course it stands to reason that another acid will remove an acid so maybe that will work. If any of you have any advice I would be happy to hear it.