Step 1
Dip a paintbrush into a can of lacquer thinner. Brush a moderate coating of the lacquer thinner onto the spray paint spots.
Step 2
Let the lacquer thinner sit on the fence for 10 minutes. Scrub off the spray paint with a rag, rubbing the rag in the same direction at all times to prevent the paint from smearing.
Step 3
Wash the affected area of the fence with a sponge and a solution of hot, soapy water. Rinse well with water from the garden hose.
Step 4
Scrub any remaining spray paint from the fence with acetone. Moisten a rag with acetone and gently scrub away the paint. Wash the fence again with the soapy water solution and rinse well.