Schmincke scratch crepe 250 ml 50 300 027 colourless masking liquid for covering non-processing images on clear cardboard paper or other airbrush surfaces. Apply undiluted with cotton wool or wooden sticks, writing or drawing feather. The colour scheme takes place only after completely drying. Then rub off the scratch crepe with finger or an eraser. Do not leave on the carrier for more than two days and completely remove because the remaining product may yellow. Clean work tools immediately with soapy water. Close the glass well and protect it from frost. Includes: Ammonia * resin dispersion