Masking tape, also known as painter’s tape, is a type of pressure-sensitive tape made of a thin and easy-to-tear paper, and an easily released pressure-sensitive adhesive. It is available in a variety of widths. It is used mainly in painting, to mask off areas that should not be painted. The adhesive is the key element to its usefulness, as it allows the tape to be easily removed without leaving residue or damaging the surface to which it is applied. The tape is available in several strengths, rated on a 1–100 scale based on the strength of the adhesive. Most painting operations will require a tape in the 50 range. Household masking tape is made of an even weaker paper and lower-grade adhesive. Masking may be employed in dry and wet processes. An example of a dry process where masking may be employed is a blasting cabinet, where defined areas are to be exposed to the media. Masking is also popular in brush plating, where defined areas are covered with the plating brush. Hard chromium and electroless nickel plating operations often utilize masks. Masking may also be employed to limit anodic coatings to specific areas or to apply multiple anodic coatings over the same part. For example, an aluminum part may be type II anodized in one area and type III anodized in another.