Use your palette knife to take as much Dorland's Wax Medium as you need out of the jar. You will want to use at least 10 percent Dorland's to 90 percent paint for the first coats and possibly as much as one part Dorland's to two parts paint for subsequent coats.
Squeeze paint out of its tube to your easel tray or other mixing surface.
Use your palette knife to mix the wax medium into the paint.
Paint with the mixture using a brush or palette knife, depending on your painting technique and the thickness of the layers you are applying to your canvas. You can also use squeegees and other soft or hard application tools, as the mixture is very pliable and forgiving while wet.
Allow the surface to dry to the point that it feels semi-dry to the touch before applying subsequent coats of paint and wax mixture as desired.
Allow the painting to dry before buffing it with a soft cloth or using other finishing techniques. However, a varnish or glaze is not necessary, as the wax adds a pleasant gloss finish to the painting.