Non Yellowing Varnish For Oil Paintings. Varnishing a painting has multiple benefits. Since 1974, oil painting restoration professionals have used gainsborough products' supplies to reveal color and detail that has been obscured over the years. Varnish brings out the rich colors and the brilliance they had when you first applied them.
When would you want to although the regular craft product can do the work pretty well, there is a chance it might yellow over.
They yellow and they become more brittle. Gives temporary protection to recently completed oil paintings. Use walnut oil made especially for oil painting. The definitive guide to artists' materials, by the advantage is that it is optically clearer than, and yellows less than, dammar. Portrait oil painting (circa 1860) cleaned, rips and cracks fixed. Varnish brings out the rich colors and the brilliance they had when you first applied them. We explain how both stains and varnishes work so that you can see when and why you should use them. It is important and it is a must.