1z Polish Choice for removing deeper scratches?

C

CDR

New member
A mix of a 1z and newbie question ...



I've decided to get 1z Metallic Polish and Paint Polish for use by hand and by a future PC in removing light scratches/swirls from a Honda and a 3 month old Acura. I also have a few deeper scratches in clear coat -- the kind you can easily feel with a fingernail. Will the PP likely take those out, or do I also need to get Ultra PP?



Obviously I can buy it, but I'm running out of space and want to keep the number of polishes to the absolute minimum for what I need to do.



FYI, I chose 1z (rather than other popular types) because I liked the flexibility to apply by hand or by machine. A downside is I'll have to strip off the fillers to put Zaino back on.
 
I recently had to remove some sorta bad scratches from an Audi. Now Audis have *VERY* hard clear (probably harder than yours), but *I* had to not only use the Ultra, but had to use a rotary! I tried various stuff by hand and PC, but the Ultra/Lake cutting pad/Makita combo was what it finally took. So I wouldn't expect the Paint Polish to work in your case.



I sympathize with your desire to NOT purchase unnecessary additional products, but I'd recommend that you have the Ultra on had for when you DO need it. Note that *I* always have to follow it with the Paint Polish, as the Ultra leaves some micromarring of its own (and I work it a long time).



Note that sometimes deep scratches are SO deep that you really shouldn't try to fix them lest you compromise your clearcoat. Generally, removing more than .1mil (which sure isn't much!) can cause premature clearcoat failure. So be careful about pursuing perfection on a regularly driven car.
 
I finally ordered the three 1z polishes: red, green, yellow given I have a BLACK Audi. Now I have to wait till Friday to get them :(



Hey, has anyone heard of/used 8000 and 10,000 grit sandpaper when repairing scratches? I've read some good stuff about them, seem like a good thing to have in the arsenal, now I'm looking to see how much they are and who sells them.
 
Bill D said:
Hey, has anyone heard of/used 8000 and 10,000 grit sandpaper when repairing scratches? I've read some good stuff about them, seem like a good thing to have in the arsenal, now I'm looking to see how much they are and who sells them.
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CDR, Accumulator posted good advice. Paint Polish is not sufficient if the scratch passed the fingernail test.



If using a rotary, just remember to apply moderate pressure and keep the RPMs low (800-1000) and then as it dries decrease pressure and increase rpms (1200-up).



BillD, regarding the super grit sandpaper, I wouldn't purchase it. This is my personal opinion. In the shop, we never used or needed anything over 1500-2000 grit.... ever. Sounds to me like grit glutony :)



Regards,
 
Mike @Einszett said:
..If using a rotary, just remember to apply moderate pressure and keep the RPMs low (800-1000) and then as it dries decrease pressure and increase rpms (1200-up).



BillD, regarding the super grit sandpaper, I wouldn't purchase it. This is my personal opinion. In the shop, we never used or needed anything over 1500-2000 grit.... ever. Sounds to me like grit glutony :)



Regards,
Click to expand...



Yep, that's EXACTLY how I used 1z with the rotary (little 4-5" pads for a localized repair). Followed up with more PP, then MP, with the PC in case I'd inflicted any holograms (could't pull it out into sunlight to check).



Yeah, the extremely fine grit papers have their uses, but I sure don't think those uses include car paint. My painter would agree with Mike, he thinks I'm silly to use 3K grit. He uses 2K then just follows up with compounds/polishes.
 
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