[AMRadio] AMRadio Digest, Vol 68, Issue 19

David Knepper collinsradio at comcast.net
Thu Sep 17 11:35:40 EDT 2009

Don, the paint manufacturers that I have spoken to attest to this

Missed you at Dayton this year - sure hope to see you soon.

The best wrinkle that I use is from England. 
David Knepper, W3ST-W3CRA
Publisher of the Collins Journal and 
Secretary to the 
Collins Radio Association
-------Original Message-------
From: D. Chester
Date: 9/16/2009 10:31:17 PM
To: amradio at mailman.qth.net
Subject: Re: [AMRadio] AMRadio Digest, Vol 68, Issue 19
> FYI - you need not apply a primer when using wrinkle paint.
> David Knepper, W3ST-W3CRA
I have seen old black-wrinkled equipment that had been left in a humid
environment for a long time. The wrinkled finish had blistered and peeled,
but beneath the wrinkle coat there was an unwrinlked black coat still
intact.  I don't recall if that sub-layer was gloss or  flat, but apparently
it was used as a primer under the wrinkle coad.
Maybe that's why the wrinlke coat blistered and peeled.
I have noticed that the wrinkle finish on1930's era pre WW2 gear has a
texture that is very different from post WW2 wrinkle  finishes.  I have
looked in vain for any information on how that 1930's finish was attained or
how to duplicate it.  The old-style wrinkle has a grainy texture, while the
more recent wrinkle finishes are very uniform, whether the wrinkles are
coarse or fine.
Don k4kyv
This message was typed using the DVORAK keyboard layout.
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