Fisket Masking Fluid
DEMCO liquid frisked is commonly used with watercolours, drawing inks, India ink and coloured pencils to conserve areas on the paper. Applied with a paintbrush, it dries within 15 minutes. Simply remove by rubbing masked areas with a finger or white eraser without ripping the paper. The masking fluid is tinted a pale blue to help the artist distinguish the masked-off areas.