Paintbrushes are expensive. Protect your investment by cleaning them immediately after use. A paintbrush used with oil-based paints can wear out quickly if not cleaned and stored properly.
Pour approximately 1/2 qt. paint thinner into a clean bucket.
Dip the bristles into the paint thinner and swish around.
Comb paint from the bristles with a wire brush.
Dip the bristles into the paint thinner again and swish.
Throw out the used paint thinner and clean out the bucket.
Repeat this process two more times.
Place the handle of the paintbrush in the palms of your hands and rub hands back and forth to shake out residual moisture. Do this over a paper bag or bucket to keep the liquid from spraying on you.
Place the paintbrush back into its cover or wrap with plastic.