Speedball Transparent Extender Base For Block Printing Ink, 8 Ounces

This Speedball Transparent Extender Base Block Printing Medium is used for maintaining viscosity while making ink less opaque. It may be used for overlapping different colors to create new colors. Exclusively for use with water-soluble block printing inks. You can start with a ratio of about 1:1 and then adjust accordingly. This product is AP Non-toxic, and can be safely used in an Elementary School classroom, or with young children. One 8 ounce jar.