I'm in a never-ending all-out war on brake dust. Recently, I tried several coats of TTGP - IMO, it was not as effective as KSG. Unfortunately, TTGP washed *less well* than KSG with my pressure washer. Just didn't like it on wheels.
Then, I tried several coats of
PGP - Bingo! It cleans up much easier with a pressure washer than both KSG and TTGP!
That's the good news... But is it not a no-touch PW-only cleanup. I still need to brush/wipe a bit, but PGP makes a noticeable difference.
About a week later, for kicks, I cleaned well and misted FK1 425 over the PGP - It seems to lessen the buildup and cleans even easier!
So, PGP once/twice a week + 425 other times seems to be the best I've come across. (My brakes make a ton of dust... So I'm still open to experimenting with anything that will help!)
On TTGP's behalf, it is the best dressing I've found for tires - I like the finish (matter not shiny), no sling-off, and it makes cleaning tires much easier.