Take apart your 3M Scrapbookers Glue container. Soak empty glue container and parts over night and rinse all parts well until glue is removed. Fill with artist grade fluid acrylics, make sure your caps are on properly, and test. It takes practice to be apply to keep the right and steady pressure as you squeeze the barrel. It’s okay as a paint marker but not exactly what I’d hope for since I want precision control without having to squeeze the marker barrel with just the right amount of pressure.