X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp123.sbc.mail.re3.yahoo.com ([66.196.96.96] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with SMTP id 3597977 for flyrotary@lancaironline.net; Mon, 27 Apr 2009 09:00:58 -0400 Received-SPF: neutral receiver=logan.com; client-ip=66.196.96.96; envelope-from=bryanwinberry@bellsouth.net Received: (qmail 45373 invoked from network); 27 Apr 2009 13:00:21 -0000 Received: from unknown (HELO acer7fbfa7e2f7) (bryanwinberry@68.215.143.58 with login) by smtp123.sbc.mail.re3.yahoo.com with SMTP; 27 Apr 2009 13:00:21 -0000 X-YMail-OSG: u2Muoq4VM1lknpi05hOwJFvGQq.DImo05EwvsdpLt9CHHt38nTqqMI57aRabB4F4IGR0a6ZmYrX1VI1tJX9sQFNk6kEcpIwu2q0v01v48G7J6hD48U3c5s7cdW3i4GZYxnYPV16uz70inW0EB1MvN8Nr686VmYuc4HCZgx0porFoQF0npJQnknNt4xuFFMoI8a1meHYQc0tnu0_A0S9raRrN5vbVYqMK6iyMqZzPkOxK9hX16P_gnDQjlR73pn3UK0mYSGU66fYnOXoY5QBUFJAsf7bqrxSkh7rjfYVrfhBuoO31qYhl7vUtXSM- X-Yahoo-Newman-Property: ymail-3 From: "Bryan Winberry" To: "'Rotary motors in aircraft'" References: Subject: RE: [FlyRotary] Re: Epoxies vs welding Date: Mon, 27 Apr 2009 09:00:20 -0400 Message-ID: <3C23E9044D7748D381F910F38D3F47F5@acer7fbfa7e2f7> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C9C716.9845A9C0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcnHN8BKJPObqS3VTuqqYUN/aYwGNwAACUEg In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C9C716.9845A9C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dave, Great idea. I hadn't thought of that. It will help me get the thing to the welder with pieces aligned. You're up a little early, no? Bryan _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of David Leonard Sent: Monday, April 27, 2009 8:57 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Epoxies vs welding JB is good for sealing pinholes and the like, but I would not use it to hold tubes together or anything structural like that. It does get old and brittle with time and heat cycles. I used some of those putties as a type of tac weld on occasion. It would hold complex pieces together long enough to get to the welder. But you have to use something else while the actual welding is being done. The epoxy melts right off soon after welding starts. Dave Leonard On Mon, Apr 27, 2009 at 5:34 AM, Bryan Winberry wrote: Thanks Al, I was thinking of an application like holding seated runners in the machined manifold. Or possibly joining tubing together. The ability to contour and smooth this product would seem suited here where air flow is an issue. But I don't know if it would stand up to all the rigors (vibration, heat, etc.) Just throwing it out there since JB Weld is smoothing the ports on several intakes out there. Bryan -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen Sent: Monday, April 27, 2009 2:25 AM To: Rotary motors in aircraft 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 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net ------=_NextPart_000_0012_01C9C716.9845A9C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dave,

Great idea.  I hadn’t = thought of that.  It will help me get the thing to the welder with pieces = aligned.

You’re up a little early, = no?

Bryan

 

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of David Leonard
Sent: Monday, April 27, = 2009 8:57 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Epoxies vs welding

 

JB is good for = sealing pinholes and the like, but I would not use it to hold tubes together or anything structural like that.  It does get old and brittle with = time and heat cycles. 

I used some of those putties as a type of tac weld on occasion.  It = would hold complex pieces together long enough to get to the welder.  But = you have to use something else while the actual welding is being done.  = The epoxy melts right off soon after welding starts.

Dave Leonard

On Mon, Apr 27, 2009 at 5:34 AM, Bryan Winberry <bryanwinberry@bellsouth.net> wrote:

Thanks Al,
I was thinking of an application like holding seated runners in the = machined
manifold.  Or possibly joining tubing together.  The ability = to contour and
smooth this product would seem suited here where air flow is an issue.  But
I don't know if it would stand up to all the rigors (vibration, heat, = etc.)
Just throwing it out there since JB Weld is smoothing the ports on = several
intakes out there.
Bryan


-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Al Gietzen
Sent: Monday, April 27, 2009 2:25 AM
To: Rotary motors in = aircraft
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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Homepage:  http://www.flyrotary.com/
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David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net http://RotaryRoster.net

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