.~ Applying superposed diverse coatings or coating a coated base {6}
259
.~.~ Including a masking coating
DEFINITION
Classification: 427/259
(under subclass 258) Processes in which the base treated has applied to portions thereof a coating which masks or shields the portions so coated during further treatment of the exposed portions of the base.
(1) Note. The masking coating may be applied to selected areas or the entire base may be coated with the mask-forming composition and selected portions of the coating, thus formed, removed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154, for removable protective coatings not used as masks.
272, for processes utilizing preformed masks wherein there is surface deformation or selective removal of portions of a coating.
282, for other processes utilizing preformed masks to produce nonuniform coatings.
300, for processes of shielding entire surfaces during a coating operation wherein the shielding means is not a removable protective coating. SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
625+, for methods of etching and for combinations of etching and coating where the etching itself is intended as a manufacturing step and not merely a preparatory, perfecting step for the coating.
228, Metal Fusion Bonding,
215+, for processes of soldering, brazing or welding in which the metal parts have means for confining the fused filler metal to restricted areas.
