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  #1  
Old 05-16-2009, 06:06 PM
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cjensen cjensen is offline
 
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Default Okay all you polish guru's...I have a question

Calling all polish guru's!! I have Nuvite F7, C, and S. Here's what my skins look like to start...I roughed up the rivet lines with maroon scotchbrite long ago because I thought I would paint.



Here are several pics after two passes with F7...see the problem? These are all pics of the same spot...







Close up...



Nuvite sent me some sample sizes of other grades. The next course grade down from F7 is F9. So I tried that, and pretty much got the same result...



Everything but the rivet lines looks fantastic so far...I need some help here because I really want to polish...
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  #2  
Old 05-16-2009, 07:05 PM
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Default

It looks like you need to
do the compounding step.

See 'step one', below:

http://www.perfectpolish.com/QuickGuide.htm

The PerfectPolish web site has a lot of good info,
Tom
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  #3  
Old 05-16-2009, 07:11 PM
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I had similar areas and what I found helped was to get to the point of wet sanding with 1500 grit sandpaper then use the F9 abrasive polish, then F6, then S. It really made a difference but I still cannot get it perfect.
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  #4  
Old 05-16-2009, 07:20 PM
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That is the compound step...F7 and F9 with the compounding buffer-straight from the perfect polish website...
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Last edited by cjensen : 05-16-2009 at 08:51 PM. Reason: spelling
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  #5  
Old 05-16-2009, 07:44 PM
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Wes Hays Wes Hays is offline
 
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Chad,
I am certainly no guru, but I did stay at a Holiday Inn last night.
I just helped a friend polish a hummelbird. We had to wet sand the grain out of the aluminum (not alcad) and get rid of some deep scratches. Some of it we did rough up with some scotchbrite and in order to get it to polish, we had to sand the scratches out with 400, then 600, then 1500 then 2000 before it would polish. It was extremely labor intensive as you can imagine, but it did finally polish out.

I feel your pain, it is not fun.
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Old 05-16-2009, 07:49 PM
n144sh n144sh is offline
 
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Eventually it will come out but takes work. I did exactly the same dumb thing many years ago - scotchbrite rivet lines. It will come out.

Steve
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  #7  
Old 05-16-2009, 08:54 PM
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Quote:
Originally Posted by n144sh View Post
Eventually it will come out but takes work. I did exactly the same dumb thing many years ago - scotchbrite rivet lines. It will come out.

Steve
Any thoughts on what grade to use? F7 over again several times?
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  #8  
Old 05-16-2009, 09:21 PM
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Hate to have to tell you this Chad, but after two passes of F7 you are just getting started. 6 or 8 is usually a bare minumum, and 10 or 12 is closer to the mark.

Occasionally I have used coarser grades, but at this point I have pretty much settled on compounding with F7, cyclo'ing with F7, and finishing with S on the cyclo. I pretty much don't use anything else, and even after the F7 cyclo the finish is pretty good.

The plane Grady just finished on Friday is mine.

Pat
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  #9  
Old 05-16-2009, 10:29 PM
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Quote:
Originally Posted by 4kilo View Post
Hate to have to tell you this Chad, but after two passes of F7 you are just getting started. 6 or 8 is usually a bare minumum, and 10 or 12 is closer to the mark.

Occasionally I have used coarser grades, but at this point I have pretty much settled on compounding with F7, cyclo'ing with F7, and finishing with S on the cyclo. I pretty much don't use anything else, and even after the F7 cyclo the finish is pretty good.

The plane Grady just finished on Friday is mine.

Pat
This is great info Pat!! Being that this was my very first shot at this, I was worried that this wouldn't come out. I'll give it another 4 or five passes with F7 and go from there.

How much are you using? I'm putting about a fingertip's worth on each side of the pad, then smearing over the area, then an inch per second at 1650 rpm. Haven't run the cyclo over it yet...

Also, how often are you reapplying? After each section? Every two sections? I've just about memorized the info on the Nuvite website, but first hand info is always best!

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  #10  
Old 05-16-2009, 10:31 PM
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Default Polish?

Sorry I'm English so I can't help...
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