3M PIII MG vs Meguiar's #3 MG

Not too sure on the comparison between those two, but if you want to remove swirls, you might need to go a little more aggressive. 3M FI-II Machine Polish or Meg's #9 might suit you a litte better if you plan to get rid of the swirls. DACP might be a good candidate too.
 
No, 3M's PI-III Machine Glaze is quite a bit more aggressive than #3 and even #9. It is designed to remove swirl marks without adding fillers.



The #3 Machine Glaze is a glaze with very little cleaning ability. It is similar to Meguiar's #7 but is designed to be used by machine instead.



I have found that PI-III is between Meg's DACP and #9 in terms of aggressiveness. Meg's #3 is about a third (1/3) as aggressive of #9 (#9 is 3 times more aggressive).



I hope this helps!



Tim
 
2hotford and IndigoGTI have it right. The PI-III MG will remove swirls throuogh MILD abrasion and it does NOT leave fillers behind. The #3, IN MY EXPERIENCE (yep, that's a disclaimer) is VIRTUALLY non-abrasive (1/3 as abrasive as #9-good example- is MILD) and won't remove enough paint/clear to actually REMOVE swirls. It sorta hides them with oils/fillers.



Can't trust those manufacturers to name their products the same way. Meg's "machine glaze" is nothing like 3M's "machine glaze". Meg's is MORE like a "glaze", the 3M product under discussion is really a polish (as *I* interpret the terms).
 
Thanks for the info.



:mad: I get quite irritated at SMR (hides not REMOVES) and what you just said. I just wasted 10 bucks on the MEG MG.



Every time I do the alcohol test after the SMR I see no swirls but little curves or bananas. Any clue what they are?
 
outdoorsr said:
Every time I do the alcohol test after the SMR I see no swirls but little curves or bananas. Any clue what they are?
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Heh heh, isn't it fun :rolleyes: trying to convey what you mean about minor paint problems?! I'd GUESS that they are just another form of swirls/marring. Try going over them (with a non-filling polish) using linear motions (in a way that'll be noticeably different from the shape they are now) and see what happens.
 
Pats300zx said:
[How does PI-III MG compare to 3M SMR in terms of aggressiveness???
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*IMO* the PI-III is more aggressive. But it will almost certainly leave a ready-to-wax finish if you work it long enough.
 
KCPreki11 said:
I'm guessing 3M FI-II Machine Polish is less aggressive than DACP?
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I have found FI-II Machine Polish to be essentially the same as 3M SMR, so I would say it is less aggressive than DACP.
 
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