Nope, I've rinsed the hell out of it.
If you wipe it with your finger a film will come off but that's it. It's thick on there. I tried scrubbing what I could with a wire brush and wiping that off but it's still there. It's like it needs to be chemically removed.
WD40 soak had little to no effect. Brake parts cleaner isn't doing anything either.
*EDIT* I forgot to add I read online the yellow might be due to hydrocarbons?
