GRAFX Masking Pen is filled with a water-based colored masking fluid. Simply apply the masking liquid on the surface to be masked and wait a few moments to dry before applying color. When ready to remove masking fluid, rub down with a finger or an eraser within two days of application.
The exchangeable nib is available in two sizes, 2mm and 4mm, which allows for clean, precise application on multiple surfaces. This gives a more controlled application than traditional masking fluids and is particularly suited to fine detailed work.