The Rub Out with Donna Thomas, September 28 & 29

The Rub Out with Donna Thomas, September 28 & 29



The creation of an image can be made by removing, rather than adding marks (or paint)—a strategy famously described by Jasper Johns as "additive subtraction". 

Most painters work in the positive mode by using additive techniques)—building up layers of marks, paint, or materials—one shape on top of the other. If you carve out major shapes of light and dark, you are taking a subtractive approach: constructing in the negative and using subtractive methods—erasing, removing.

The technique, also called "Imprimatura", is an initial stain of color on a ground, such as a canvas. The term comes from Italian and means "first paint layer". It is used as an ‘under painting’ which dates back to the Middle Ages. Painters of the Renaissance standardly used this approach. It enabled the painter to establish the values of a painting)—the relationships between dark and light. Successive layers of color were later added once the stain dried as a transparent or semitransparent glaze. 

In my two-day workshop, you will learn to pull oil paint off of the canvas with a rag or paper towel to create the lights of the subject. Students will continue to finesse their work by adding and subtracting oil paint. It is an excellent way to learn how to obtain accurate value.

Supply List:

Canvas, not less than 16 x 16"

Oil Paint: raw umber and ultramarine blue

Gamsol in container


Large brush (12) and sizes 8, 10


REMEMBER MEMBERS: You get ten percent off this class! Use your discount code at checkout. To join, CLICK HERE.

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