How To Clean An Oil Painting. Use saliva and a cotton swab to clean the painting. Gently roll the cotton swab back and forth instead of scrubbing over the surface of the painting.
Do not use paper towel because little pieces will rip off where the paint has texture. Softly swipe away dust and accumulated soil off the artwork. Make sure the brush you use is made of soft bristles.
Dampen a clean soft sponge with plain water and wipe gently to remove the sodium carbonate solution and allow to dry.
Make sure you havent had anything to eat or drink at least 30 minutes before cleaning your canvas. Here is a home-ready technique that will get rid of the average accumulation of house dust on your oil paintings. Clean the painting 2 square inches at a time. Be gentle with paintings with thick impasto as you do not want to break hardened paint.