Oh next time I will try this. I usually use Iwata-Medea cleaner, it's also very good. It removes stubborn acrylic paint residues and stains. In addition, it blends well with a variety of paintbrushes and art supplies, including technical pens and paintbrushes made of natural and synthetic hair. Furthermore, watercolors, inks, dyes, gouaches, and more can all be removed with this all-purpose cleaner.