Polyester for Interior & Exterior 3 Piece Brush Set for Paints Stains & Varnishes (02517): In cleaning the brushes, for Latex Paints, wash brush thoroughly with soap and warm water. Rinse. Remove excess water. Comb brush and hang to dry. For Oil Paints, wash brush thoroughly with solvent recommended by paint manufacture. Remove excess solvent. Comb brush and hang to dry.