Coloured Masking Fluid Pen

From Schmincke, this Coloured Masking Fluid Pen is designed for use with watercolours & allows for fine areas to be easily blocked out during work with a rubbery, water-insoluble layer that can be removed afterwards. Quick-drying (dependent on thickness, between a few minutes to an hour) & completely ammonia-free, this synthetic resin product can be precisely dispensed directly from the fine-tipped applicator bottle. Once dry, you're able to paint over these layers using watercolour before carefully rubbing (not peeling!) them from the surface to leave a clean, un-touched area. Schmincke: Masking Fluid Differences