Naturally Repair Wood With Vinegar and Canola Oil. So, for a super cheap, use 3/4 cup of oil, add 1/4 cup vinegar. white or apple cider vinegar, mix it in a jar, then rub it into the wood. You don’t need to wipe it off; the wood just soaks it in.courtesy of S. Glavic
Note: Clean any dust on the wood and test a small portion to see on how it will react before applying all over the wood furnishes you are trying to restore.
