SFCR said:
I am a definite car enthusiast and have enjoyed reading the information posted in this site. What are your thoughts regarding using 3M Finesse-It II?
In a word, "YUCK!". Seriously. I tried that stuff years ago after some members here posted about it and I think it's lousy. Mediocre cut at best, worse-than-medoicre finish, not all that user friendly either. I literally threw it away and I hardly ever do that.
I normally use GG's 6" random orbital on a low speed.
I'd crank it up to 6 for most correction, maybe dial it back to 4.5 for finishing depending on the product (but I seldom do that myself).
Also, what glaze do you recommend to fill any remaining imperfections in the clearcoat? I don't want to over-buff.
My fave is something that's hard to find these days, 1Z WaxPolishSoft. Autoglym's Super Resin Polish is another one I like and it's what I use on my '85 Jag (no more correction for that one!). But I hear the hot ticket is something called Bilthambler (?sp?) AutoBalm, see if a
search can bring up some info.
A guy I know likes Griot's Paint Glaze, but eh....his car doesn't look all that great and I can't say anything based on it.
Note that most glazes/etc. really only fill *very* minor imperfections anyhow.
The car is a 2010 Impala LTZ Summit White CC. I have no garage, but it has been well kept and cleaned on a weekly (7 days or so) basis.
White's pretty easy to keep looking OK; my horrificaly beat Crown Vic is white and while I think it's simply awful most normal people see it and think "wow, nice car!"
I don't bother with glazes on the Crown Vic. With a decent polishing it looks good enough; even though the residual marring does refract light instead of reflecting it, just having white looking "clean and glossy" makes it good enough for me (and that's saying something

).
On your Impala, I'd do a good decontamination, then one good correction, a final polishing to bring up the gloss *really* well, put on a good LSP, and then work on the wash technique so it doesn't get marred up (and the gloss diminished) again for a good long time.
I've used GG's machine polishes, but they seem to be less aggressive.
That was my experience as well, though their mildest ones (Machine Polish #3, let alone #4) can give a nice gloss. If you already have them you could do worse for the final polish. But you could do better too
Note that most GM clear is pretty hard, sounds like yours is that way.
I've had excellent results with 3M Finesse-It (not the Finesse-It II) when used by hand in the old days.
Don't put too much stock in what worked well back in the day. The stuff I used back in the '70s-'80s would be *terrible* on most of my current vehicles (different paint technology), and even on old-tech-paint cars like my Jag there's usually something more modern that does everything better.