Mailing List flyrotary@lancaironline.net Message #45849
From: <wrjjrs@aol.com>
Subject: Re: [FlyRotary] Epoxies vs welding
Date: Mon, 27 Apr 2009 12:23:49 -0400
To: <flyrotary@lancaironline.net>
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Al,
Many engine builders use JB weld or an equivelent to fill low spots in the intake ports! I never liked the idea but I have seen a couple of engines using epoxy in the intake, in the head itself on an air cooled engine with no problems. Nobody was more impressed than I. Better living through chemistry.
Bill Jepson 


-----Original Message-----
From: Al Gietzen <ALVentures@cox.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sun, 26 Apr 2009 11:25 pm
Subject: [FlyRotary] Epoxies vs welding


On another note, has anyone contemplated using the two part puttys in areas
like intake manifold construction.  I saw some in HD that claims good for
temps up to 450.  I'm hesitant, but this stuff seems to be a cousin to JB
Weld.
Bryan  

JB weld ( and similar) is wonderful stuff that adheres to almost anything,
and is amazingly strong.  So if need things to hold together and make a good
seal - great.  But if you need real strength, anything that just adheres to
the surface is not going to be as strong as a good weld.  So consider your
application, and what it has to do, and then decide.

FWIW,

Al G


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