Liquitex Pen Cleaner
Liquitex Pen Cleaner is designed for cleaning acrylic inks from paint brushes, airbrush parts, technical and dip pens. Use the clear, low-odor formula to rinse your tools after use and before the ink has dried. If the ink has already dried, soak the tool and leave it to work for a few minutes, then test to see if the crusted color comes off and then rinse with water. Pen Cleaner usually does the trick.
FLAX art & design is a genuine Oakland institution. Opening their first store in 1938, they're now on their 3rd generation of family ownership and have recently relocated to a beautiful new Downtown location that could best be described as a "toy store for artists." 80 years in and they're still putting art and community front and center. You can visit them at their own site here, or find more of their products right here on Keep Oakland Alive.