Mask for coated glass

Details Mask for coated glass Mask for coated glass

B - Operations, Transporting

05

C

B05C 21/00 (2006.01) B05B 15/04 (2006.01) B05D 1/32 (2006.01) C03C 17/00 (2006.01)

Patent

CA 2156883

A reusable mask to be used in a coating operation to cover selected portions of a substrate from being coated and minimize ghosting about the periphery of the coating. The mask includes first member having a configuration which generally approximates the area of the substrate to be covered and an edge portion which closely follows the desired peripheral shape of said coating, and a second member underlying at least a portion of the first member and having an edge portion which precisely corresponds to the desired peripheral shape of the coating. In one particular structure the edge portion of the second member is no greater than 0.030 inches thick, and preferably no greater than 0.010 inches thick to minimize any ghosting of the coating about its periphery caused by the second member. In addition, the distance between the edge portions is sufficient to eliminate any shading of the coating about its periphery caused by the first member.

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