Cosmic Shimmer Masking Fluid is ideal for protecting areas of your project before adding ink or paint. Brush or flick a thin coat of masking fluid onto your project, and allow to dry fully before applying ink, paint or pixie powders. Once your work is completely dry use a clean finger to rub away the masking fluid, which will reveal "clean" areas of your project. Also great for applying over stamped images to protect them before adding paints or inks to your project.