Easily add contrast to your project with Nuvo Masking Fluid such as highlights, edges, snow spots and white lines. Preserve areas of untouched paper with the precision nozzle that would be too tiny or complex to work around. Apply to a clean dry surface and wait for the fluid to be thoroughly dry. Can be used with a large variety of mediums including inks and watercolours. Simply remove the masking fluid from the paper with a soft rubber or gently rubbing with your fingertips to reveal an untouched pristine section below. Masking fluid can we used in a variety of techniques with fantastic results.