Duncan Bisq-Stain Opaque Acrylics - OS 476 - Black - 4 Ounce Bottle Duncan Bisq-Stain Opaque Acrylics can cover your pieces in a wealth of rich vibrant colors Use them with stencils, sponging, dry brushing and other decorative painting techniques. Bisq-Stain Opaque Acrylics provide solid coverage for your pieces and are water-based for easy cleanup. Can be mixed to create even more tones, tints and shades. AP Certified Non-Toxic. Not safe for use on food containers. Made in USA!