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Old 07-25-2011, 02:52 PM
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Best Color Sanding Abrasives (final clear coat fine grits)

I've been trying all kinds of paper over the past year. So far I've tried:

6" Hook and Loop discs:
3M Trizact 1500g (works well but expensive)
3M Gold 216u (good for leveling at 400g)
Klingspor PL36 Similar to 216u but not quite as good/fast but cheaper by far.
SunMight Green Film - works great and in fine grits. Cheap. dry sanding
Eagle Abrasives Yellow Film - works maybe a little better than the Sunmight. used dry
Klingspor PS11 (PS14) - works similarly to 3M's Imperial WET/DRY Silicon Carbide

and in sheets (Black wet/dry) on a block:

3M Imperial - works pretty good at first but goes dull fast (I use a pink eraser as my block and a sheet lasts maybe 1 sq foot before it's dull).
3M TriMite - terrible
Klingspor PS11 (now PS14) - works about as good as the 3M Imperial but less than half price.

So far I'm happy with the Sunmight. Good for the price. Very good.

What I'm not the happiest with is the wet/dry product. Seems like it goes dull fast. Anything better out there?

Also, maybe part of my problem is my sanding schedule. I have been using the fine DA to level at 400, then 600, 800, 1000, 1200. Then I switch to hand sanding at 1200 (again) and work up to 2000 grit by hand. This seems to get the DA swirls out. Then I buff. I have heard of people using the DA up to the end but I haven't had much luck with this. It works but buffing out the swirl marks is a bear and I'd doubt it's saving time.

Curious what you've found to work. I've been doing lots of testing but sometimes we have more power if we share our experience. That's what a forum is all about right!

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Old 07-25-2011, 06:57 PM
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For clearcoat hand sanding with fine grits, Meguiars Unigrit seems way better
to me than anything I've tried. it is expensive though.
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