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  #31  
Old 06-14-2013, 03:36 PM
Buggsy2's Avatar
Buggsy2 Buggsy2 is offline
 
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Location: NorCal
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Quote:
Originally Posted by kevinl4000 View Post
Love the paint/polished aluminum combo - but how the heck do you polish bare aluminum up next to the paint line?? Mask off the painted parts before polishing? That's a lot of masking!
I had the same question. See http://www.vansairforce.com/communit...7&postcount=32
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Ralph Finch
RV-9A QB-SA
Davis, CA
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  #32  
Old 06-16-2013, 06:03 PM
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YellowPeril YellowPeril is offline
 
Join Date: May 2012
Location: Bowdoinham
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This is a little off topic, but..

I just came into possession of an old (50s-60s era) rotating beacon, and the housing of the thing is cast aluminum.

For a guy who always wanted a disco ball hanging from the ceiling of his hangar, this is the score of the century.

My question is: Can one do that magic-polish thing you guys do to sheet stock to cast aluminum?

My -8 is painted, so my ignorance knows no bounds...
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Nick "Hairball" Knobil
RV8 N80549 (First Flight 2003)
Aerosport O-360A1A, Dual LS CDIs, WW200C
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  #33  
Old 06-17-2013, 12:43 PM
mlwynn mlwynn is offline
 
Join Date: May 2005
Location: San Ramon, CA
Posts: 402
Default Disco Ball Polishing

Hi Nick,

I just polished the intake rings for a James cowling. Cast or machined aluminum, probably the same thing as your beacon.

I used a Harbor Freight polisher ($39). This is a two ended motor with relatively soft pads and a stick of white rouge. Polished them up to a mirror finish in just a few minutes. I tried using Nuvite on the polishing wheels and it just got flung off by the centrifugal force.

Micheal Wynn
RV 8 Polishing
San Ramon, CA
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  #34  
Old 06-17-2013, 01:00 PM
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YellowPeril YellowPeril is offline
 
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Micheal,

This thing's been sitting (or spinning) in the coastal salt air of Maine for the past 50 years or so...so it's got quite a bit of "character".

My current plan (feel free to give me advice on how I should really approach this) is to attack the barnacles, oakum and bottom paint with an air-fired grinder and some Scotch-Bright wheels (fine-medium coarseness), then to get a polishing pad, put some special sauce on it and spin it with an electric drill until done.

So far it's been very cool cleaning up the Corningware Fresnel Lenses...

However, if I can't get the thing to a reasonable level of shiny then my efforts will be for naught....
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Nick "Hairball" Knobil
RV8 N80549 (First Flight 2003)
Aerosport O-360A1A, Dual LS CDIs, WW200C
Bowdoinham, Maine
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  #35  
Old 06-17-2013, 07:10 PM
mlwynn mlwynn is offline
 
Join Date: May 2005
Location: San Ramon, CA
Posts: 402
Default Now that's a beacon

Okay, I thought you meant a rotating beacon off an airplane. That thing is a little bigger. Probably go with what you had described and then polishing pads mounted on a drill.

If you could disassemble the beast, it might be a lot easier to do in parts.

Good luck,

Michael Wynn
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  #36  
Old 06-25-2013, 10:26 AM
DaAV8R DaAV8R is offline
 
Join Date: Jul 2009
Location: Lee's Summit, MO
Posts: 741
Default Perfect Polish

I ordered some Nuvite last evening from Perfect Polish. I received a message this morning stating that they do not charge freight for domestic or Canadian orders. Hats off to Perfect Polish. Thought I would post here in the event others didn't know this was part of their service and price structure.

Now I fee guilty for not placing a larger order
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