Any water-based medium is fine to use with our stencils. We sell the primary colors of Speedball Screen Printing Fabric Inks so you can mix your own custom colors, and we also sell Coco's Chalky Powder so you can turn any acrylic paint into a chalk paste. Choosing which paint, ink or paste to use for which project can feel overwhelming, so make sure to check out our Paint & Ink Selection Guide for our recommendations.