[T3] Beauty Rings

[Dave Hall]

Yes, we put the extra 'i' in aluminium, but it's one of the easier
differences to work out!

The anodising (anodizing!) is to protect the metal by making it oxidise.  I
don't know why it does a better job than letting the metal ozidise
naturally, but maybe other elements contaminate the layer if so.

I don't know if both sides are anodised.  It would make sense, but I'm sure
only the outside would be polished.  The ones I have here looked like
aluminium inside, but polished anodised on the outside.


Dave
UK VW Type 3&4 Club
===================

 

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Gary
Forsmo
Sent: 30 June 2013 23:53
To: type3 at vwtype3.org
Subject: [T3] Beauty Rings

The original VW beauty ring has an average anodised layer thickness of 6.6
microns, according to a contemporary motor industry test report on a '69
automatic Fastback. I guess the after market ones will be less, but it might
be interesting to find out.

That's equivalent to 0.26 thousandths of an inch (assuming I'm converting
millionths of a meter into into thousandths of an inch correctly!

Dave
UK VW Type 3&4 Club

Thanks, Dave.

If your conversion math is correct ... and I have no reason to doubt that it
is .... am I reading your comment as:

The aluminum (aluminium, did I spell the U.K. version correctly?) has a
dimension AND THEN the anodizing adds 0.26 thousands on top of the base
metal?

IF (big if) I would decide to have a skilled "metal banger" do his magic,
are there companies who re-anodize aluminum.  I haven't researched that yet.
1)  And what's the #1 purpose on anodizing in the (OE) first place?
2)  Corrosion resistance?
3)  And do both sides of our Beauty Rings get anodized?

Gary "Frito" - '69 Variant, FI, MT
Rockport, TX (winter)
Lake Geneva, WI (summer)
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