Harris 101091008 Essentials Block Brush 4 Inch The Harris 101091008 block brush is for use with all paints. For best results, rinse brush head before use to remove any dust. This is a general brush which can be used with all paints. After painting with water based emulsion, first remove the excess paint then wash in warm soapy water ensuring all paint is removed. Finally allow to dry naturally with the brush head flat. After painting with oil based paints, such as gloss satin and eggshell, a specialised cleaner may be required, please refer to the paint tin for further guidance.  Features: For use with all paints