Retouching varnish is high-gloss, protective liquid. Once the surface of your art works is dry, you can varnish. It can give a thorough gloss as well as brightness to apply a layer of the your colors. Retouching varnish is also call ’temporary protecting varnish.’ Once an oil art work is finished for a month and needs to be revised, you may find the surface hard and additional colors can hardly apply. A solution is to apply a thin layer of retouching varnish, which can soften the original paints on the work and make surface again easy to paint.

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