Professional's Art Supplies Store
Demco Frisket Masking Fluid is used to mask areas of paper making them resistant to watercolour.
The liquid frisked is commonly used with watercolours, drawing inks, India ink and coloured pencils to conserve areas on the paper.
Applied with a colour shaper, stylus or paintbrush, it dries within 15 minutes. Simply remove with a cement rubber or by rubbing finger without ripping the paper.