Used Chemical Guys Wheel Guard on my matte black powder coat wheels today and then gave them a wash with Megs NXT soap and water. After the wash there was a white residue left behind, didnt notice the haze before the wash. I was able to get some of it off with some heavy scrubbing, but it got dark outside so had to stop.

Is this likely bc I didnt buff the CG Wheel Gaurd off good enough (my wheels finish isnt really smooth so buffing off was more difficult than my chrome wheels)?

And any ideas/products/techniques (powder coat safe) to get rid of the rest of this haze in the morning?

TIA