Patent ID: 11874604
Assignee: nan
Field: Surface technology, coating (Chemistry)
Classification: CPC G  A  B | IPC A  B  G

Claim 10:
11. A method of forming a design on a helmet, comprising:
providing a photoresist mask having an open area in the shape of a design;
without disassembling trim and hardware of a helmet, adhering the photoresist mask to an area on the helmet and applying tape to edges of the photoresist mask, the helmet having an existing clear topcoat and paint layer;
securing a protective cover around the helmet except over the photoresist mask and applying tape to edges of the protective cover surrounding the photoresist mask;
sandblasting/abrasive-blasting the photoresist mask to etch only portions of the helmet clear topcoat and paint layer underneath the open area to a predetermined depth at least into the clear topcoat on the helmet, portions of the existing clear topcoat and paint layer covered by the protective cover not being etched;
applying a layer of bonding agent to the etched portions;
applying paint mixed with a hardener over just the etched portions of the helmet within the open area followed by a clear coat layer/hardener over the paint, the existing clear topcoat and paint layer other than the portions that have been etched being unpainted, and wherein an amount of paint added matches an amount of material that has been removed during the sandblasting/abrasive-blasting process so that a final surface of the helmet is even and smooth from unpainted to painted portions; and
removing the protective cover and photoresist mask from the helmet.