Scumbling

What I find so compelling about painting with oils is that there are so many ways to apply it. To make a strong statement, you can lay it on thickly like impasto. Thick paint goes hand in hand with coarse brushwork, often using bristle brushes to create a raised effect. The result immediately draws the viewer’s attention, and the three-dimensional strokes can evoke strong emotion. Oil paint applied thinly is equally great for portraits and realistic styles because you can softly blend areas while the paint is still wet, thus creating a subtle transition from one color to another. Another method of paint application that involves a “blend” of two colors is scumbling.

Scumbling is a painting technique that can be used to modify the color on a canvas, using a thin layer of paint. The under layer must first be dry. Using a dry bristle or synthetic brush or a clean lint-free rag, dip the brush or rag into a slightly thinned, semi-opaque color and loosely brush or scrub it on over the under layer with a circular or back and forth motion, only partly covering it. The scumble color should be lighter than the under layer to be most effective.

 A unique look can be achieved by using a complementary color as the scumble color, for example, a cadmium red over a viridian green. When it dries, you will notice that the green will resonate through the red layer. Similarly, you can cool down a hot color by scumbling over it with blue or green mixed with a little titanium white.

Here's the final result of my Composition painting with a scumbled background.

It’s a great technique that is worth investigating. I’ve applied a scumble layer to dark backgrounds with great results. Give it a try!