Scratch-off tape

Scratch tape is a masking liquid that is used in painting to cover (mask) parts of the picture that are to remain unpainted on watercolor or drawing paper . It is a milky-white or colored liquid that becomes transparent after drying and can then be removed ("rubbed off") without leaving any residue. To do this, first apply the scratch-off tape, after a short drying time, the colors are applied over it. After these have also dried, the masked area is exposed again. Rub-off tape can be applied with a brush , cotton swab or nibs . In addition, special masking pens are available that enable particularly precise application.

In addition to scratch-off tape, permanent masking fluids that remain on the image and assembly adhesives such as Fixogum are also used.