Product Description Liquid, colorless gum emulsion for masking specific fields, which should remain white, on watercolor paper, smooth drawing carton, photographs or films. Apply undiluted with writing pen, cotton- or wooden stick. To be colored only after drying. Rub easily off with finger or eraser. Do not leave liquid frisked longer on the grounding than 2 days. Remove completely as soon as possible. According to paper quality is slight yellowing possible. Clean equipment immediately with water and soap. Close bottle properly and avoid frost. Contains: Synthetic resin dispersion without ammonia.