Ok. I am working on a 2004 Chevy Silverado with stock wheels. There is a white stain on the wheels that cannot be removed with any wheel cleaner nor can it be felt with your fingernail. It seems like it is under a clear coat. What is this and can you do anything for it?
From the pictures, the problem looks pretty extreme, if you can't feel anything at all on the surface then it's probably some kind of corrosion problem under the clear coat.
Is this a daily driver? If so,
major on the majors and minor on the minors. Let you customer know there's nothing you can pour or spray out of a bottle that will fix the problem as the cure is a lot more complicated and expensive and would require stripping the wheel and then re-clearing it with new paint.
If this is just a daily driver then it probably hasn't been a priority problem in the past for your customer and thus if you could fix it the problem would just re-occur.
When you're done with the truck your customer is going to look at the
big picture, that is, is the
entire truck, (big picture), clean and shiny. If they want to focus on the little picture then maybe let them know that you're not a painter and recommend they stop by a body shop and see if they can get a quote to have the wheels re-cleared. Chances are all of a sudden it won't be a big enough deal for them to want to hassle with or pay for.
Again, is this a daily driver or a show truck? From the look of the wheels, I'm guess it's a daily driver.
Keep your customer's expectations real.
