This is the easiest silk-screen art-masking project you'll find. Absolutely no emulsions or solvents! Just cut a picture directly into a special plastic sheet using any cutting blade, then apply the sheet to the screen fabric. The spaces cut out and removed will provide the "windows" for squeegeed paint. Compatible with water-based paints. Cleans up easily with water. Includes one 20" x 30" sheet. MA20