US 12,378,675 B2
Conversion coating application system including hydrogels and methods of using same
Alexander Evan Westre, Carson City, NV (US); and Sjon Westre, Carson City, NV (US)
Assigned to Chemeon Surface Technology, LLC, Minden, NV (US)
Filed by Chemeon Surface Technology, LLC, Minden, NV (US)
Filed on Jun. 6, 2024, as Appl. No. 18/735,845.
Application 18/735,845 is a division of application No. 18/209,123, filed on Jun. 13, 2023, granted, now 12,037,690.
Claims priority of provisional application 63/351,771, filed on Jun. 13, 2022.
Prior Publication US 2024/0327989 A1, Oct. 3, 2024
Int. Cl. C23C 22/30 (2006.01); C23C 22/53 (2006.01); C23C 22/56 (2006.01); C23C 22/57 (2006.01); C23C 22/73 (2006.01); C23C 22/34 (2006.01)
CPC C23C 22/57 (2013.01) [C23C 22/53 (2013.01); C23C 22/56 (2013.01); C23C 22/73 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for treating a metal substrate with a conversion coating application system, the conversion coating application system comprises a conversion coating applicator and an activation applicator, the conversion coating applicator comprises a first liner, a first hydrogel attached to the first liner, and a first cover removably attached to the first hydrogel, the first hydrogel comprises a trivalent chromium conversion coating solution comprises: a trivalent chromium compound, a zirconate compound, and a dye compound, the conversion coating solution is an aqueous solution, the activation applicator comprises: a second liner, a second hydrogel attached to the second liner, and a second cover removably attached to the second hydrogel, the second hydrogel comprises an activation solution, the method comprises:
placing the conversion coating applicator on the metal substrate such that the first hydrogel contacts the metal substrate.