This Watercolour Masking Fluid features an easy-to-use bottle applicator with 5 fine-point applicator tips for delicate to robust applications. It can also be applied with an inexpensive brush. Masking Fluid makes an impervious barrier to protect your watercolour paper and preserve the white areas by blocking watercolour washes from flowing into areas you don’t want, leaving crisp clean edges. Masking Fluid applies as an off-white colour and dries to a transparent caramel colour so that you can see where the applications are, but it remains unobtrusive while working on your painting. The dried Masking Fluid is easy to remove with a rubber eraser, a ball of dried masking fluid or even with your clean fingers. View our Speedball Best-Test Pik-Up Rubber Cement eraser - ideal to remove masking fluid. Be careful though, about leaving oils from your fingers when rubbing off the dried Masking Fluid, oils from your fingers can interfere with new applications of watercolour. Once the Masking Fluid had been removed, either keep the white areas white or add fresh watercolour onto the preserved white area to retain maximum watercolour luminosity. View our Daniel Smith Watercolor range.