Schmincke Masking Fluid

Making Fluid is a liquid medium used for watercolour painting.

You apply masking fluid where you don't want to colour the paper, and get some white, untouched areas in your watercolour drawing. Masking fluid dries to a shiny rubbery mass and can be rubbed off with your finger afterwards.

Do not leave Masking fluid for more than 1 day, do not use a brush to apply it as this will destroy it, and never paint on the watercolour before Masking fluid is completely dry.