Oil Painting Directory

For recent paintings, your problem is more probable a build-up of dirt, smoke, pet hair, dander, and as well bacterial or any fungal growth. In this case, ensure none of the paint is prepared to come off the canvas or board, meaning that it doesn't show any cracks or any flakes. Then you could cautiously dust the surface with an extremely spongy and dry bristle brush, such as a baby toothbrush or shaving cream brush.