I have a prefinished bedroom door and it appears to have developed a grey patch that looks like grease. The patch isn't grease, however it just appeared by itself. Any help as to how I can get clean it off?

  • Do you have pets? Any explanation at all as how it got there? Usually discoloration happens for a reason. Is the location damp? maybe it is mildew.... – Jack Mar 1 '14 at 21:31
  • 2
    I wouldn't mess with a magic door. – DMoore Mar 2 '14 at 20:00

I would try, in order of escalating cleaning function, these series of things until a suitable result has been obtained:

  • Wiping with a clean dry cloth.
  • Apply a little (15 ml/1 Tbsp) white vinegar to a paper towel and wipe. Rinse with a wet (water) paper towel.
  • Combined with vinegar or dish detergent (for hand washing), use a rough cloth or mild scrub brush (pink or white Scotch brite).
  • Green Scotch bright and soap. Repainting might be necessary afterward.
  • 220 grit sandpaper
  • 150 grit sandpaper
  • 100 grit sandpaper
  • woodworking plane
  • replace the door
  • 3
    You forgot move out – bib Mar 1 '14 at 22:39

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