Author Topic: Aluminum Alloy used for GMC 4106 skins?  (Read 1798 times)

Offline Darkspeed

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Aluminum Alloy used for GMC 4106 skins?
« on: December 30, 2012, 07:37:37 AM »
Anyone know the Aluminum Alloy used for GMC 4106 skins?
4106 6V92TA MUI + V730 8" Lowered Floor & Polished > http://www.busconversions.com/bbs/index.php?topic=24673.0 QuietBox > http://www.busconversions.com/bbs/index.php?topic=29946.0
It's all math and metal...

Offline Boomer

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Re: Aluminum Alloy used for GMC 4106 skins?
« Reply #1 on: December 30, 2012, 09:36:38 AM »
Anodized aluminum with a special clear coat.  Don't know the alloy makeup.  If you remove the factory clear coat from the siding, beware; you will not be able to duplicate it.  BTDT with my Silverside.
'81 Eagle 15/45, NO MORE
'47 GM PD3751-438
'65 Crown Atomic, NO MORE
Vancouver, WA USA

Offline Utahclaimjumper

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Re: Aluminum Alloy used for GMC 4106 skins?
« Reply #2 on: December 30, 2012, 04:02:24 PM »
 2024T3 is the most commonly used in aviation for making panels of all sorts,,available at Aircraft Spruce.>>>Dan
Utclmjmpr 
 EX 4106 (presently SOB)
Cedar City, Ut.
 72 VW Baja towed

Offline Darkspeed

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Re: Aluminum Alloy used for GMC 4106 skins?
« Reply #3 on: December 30, 2012, 06:36:24 PM »
2024t3 is what I have used to repair / rebuild a number of airstreams from - https://www.airpartsinc.com/shopdisplayproducts.asp?id=28&cat=Aluminum+Sheet+%26+Coil.

The lower skins on my 4106, some PO took a disc sander to in areas and there is no way to re ano. it

my plan is to sand smooth and polish.

I have about 400hrs of aluminum polishing experience so i know what i am in for.

I polished a test spot on the bus and left it outside for a few months and so far so good.

I was just curious the purity of the alloy used in the 4106.

I sure wish the endcaps were aluminum on the 4106... but that is what gloss black is for i guess

I polish my 2024t3 airstream - about 5 hours - once a year and am very happy with it.
« Last Edit: December 30, 2012, 06:38:25 PM by Darkspeed »
4106 6V92TA MUI + V730 8" Lowered Floor & Polished > http://www.busconversions.com/bbs/index.php?topic=24673.0 QuietBox > http://www.busconversions.com/bbs/index.php?topic=29946.0
It's all math and metal...