Took a pic yesturday after cleaning the wheels.
Brake dust is still coming off needing no more than gentle agitation with a MF under a running hose.
Still beading as can be seen 2 months after sealing.
Bored now and also going through withdrawal symptoms not waxing/sealing my Nismos.
So in conclusion I reckon Chemical Guys wheel Gaurd is OK for at least a couple months.
No need for any harsh wheel cleaning solution with regular washing (if all i used was water, shampoo is more than adequate).