Schmincke Colored Masking Liquid 20ml Liquid rubber to temporarily cover spaces on a canvas, notebook or paper and paint over it without fear of covering areas that you want to leave blank. Prevents the adhesion of watercolor or paint on the parts where the masking liquid has been applied. Can be used with watercolors, gouache or water-based and spray inks. Once dry, it is easily removed with your fingers or a soft eraser. For application, preferably use old brushes. Let it dry for about 10 minutes. Composition: natural rubber in dispersion. How to use: - Draw, write or use a stencil with masking fluid. - Let it dry. - Use your inks or watercolors on the canvas or paper, you can paint without fear on the mask you have created. - Once dry, remove the mask with your fingers, the drawing or phrase that you made with the previous background color will remain. It is free of ammonia. Blue color. Contains 20 ml. Brand: Schminke.