Wax coating over phosphate coating for vehicle components
AssigneeMagna International Inc.
InventorKevin Dale Smith
Life of this patent
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Abstract
A coating for vehicle components, such as frame assemblies and cradle assemblies formed of steel, is provided. The coating includes a first layer including a high phosphate composition applied to the substrate, and a second layer including wax applied to the first layer. For example, the first layer can include a first inorganic acid, an inorganic salt, a second inorganic acid, nickel salt, and ammonium bifluoride; and the second layer can include petroleum, carbon black pigment, and a corrosion inhibitor, the corrosion inhibitor including magnesium. The coating has been found to improve corrosion resistance when applied to steel substrates, compared to wax coatings which are currently applied to steel substrates.
Claims20
A coating for a vehicle component, comprising:
- a first layer including phosphate, and a second layer including wax applied to the first layer, wherein the first layer has a weight of 900 mg/ft2 to 2400 mg/ft2.
A coating for a vehicle component, comprising:
- a first layer including phosphate, and a second layer including wax applied to the first layer, wherein the second layer has a thickness of 75 to 125 microns.
A coating for a vehicle component, comprising:
- a first layer including phosphate, and
- a second layer applied to the first layer,
- the second layer including wax and a corrosion inhibitor,
- wherein the second layer includes the corrosion inhibitor in an amount of 55 to 70 wt. %, based on the total weight of the second layer.
A method of manufacturing a coating for a vehicle component, the method comprising the step of:
- applying a second layer including wax and a corrosion inhibitor to a first layer including phosphate, the second layer including the corrosion inhibitor in an amount of 55 to 70 wt. %, based on the total weight of the second layer.
A method of manufacturing a vehicle component, comprising the steps of:
- applying a first layer including phosphate to a substrate, and applying a second layer including wax and a corrosion inhibitor to the first layer, wherein the second layer includes the corrosion inhibitor in an amount of 55 to 70 wt. %, based on the total weight of the second layer.
Dependencies are inferred from the claim text.