X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from yw-out-2324.google.com ([74.125.46.30] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3597975 for flyrotary@lancaironline.net; Mon, 27 Apr 2009 08:57:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.46.30; envelope-from=wdleonard@gmail.com Received: by yw-out-2324.google.com with SMTP id 9so1409727ywe.7 for ; Mon, 27 Apr 2009 05:57:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=H7xURPMhu450LrovbWhHNevkWLU3WvoXqkb8LNVWdDM=; b=fGsE8doqv48GRmY5xHtVJ1GvxVFibLj2OrqDkzO4A9VnrbKDMW9a5dhhELgPEq7VhP kI7jZdgH/oCHUfi0XSswja9Hemm/XaNQ3MC7AnQJEvx5lTpY52xBv6pKEEi9HdCML+Zx 1U/3eNBfS5JPF3lin2eozqFWF24n3SdtaWu+k= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=vAWGHYKOwb4xDVQAuD4i55sTsIXgiFyR/x93YXGS4FMd94o1OMTo+B5r4mLR2cQ0ma raIWfU38O3WGqMyn7+kumebneF124fJCYYaaJuzzctODZUhiiuCifWHAZUvCMhmUV3j5 PKu1ecE4bsyDBy8UmYNgM3R+c/ZwahscqqZpU= MIME-Version: 1.0 Received: by 10.151.72.6 with SMTP id z6mr8849895ybk.218.1240837023801; Mon, 27 Apr 2009 05:57:03 -0700 (PDT) In-Reply-To: References: Date: Mon, 27 Apr 2009 05:57:03 -0700 Message-ID: <1c23473f0904270557o141f107cjdeb611a30a13a0d9@mail.gmail.com> Subject: Re: [FlyRotary] Re: Epoxies vs welding From: David Leonard To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001e680f0e2407209f046888e28b --001e680f0e2407209f046888e28b Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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 --001e680f0e2407209f046888e28b Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable JB is good for sealing pinholes and the like, but I would not use it to hol= d tubes together or anything structural like that.=A0 It does get old and b= rittle with time and heat cycles.=A0

I used some of those putties a= s a type of tac weld on occasion.=A0 It would hold complex pieces together = long enough to get to the welder.=A0 But you have to use something else whi= le the actual welding is being done.=A0 The epoxy melts right off soon afte= r 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 machine= d
manifold. =A0Or possibly joining tubing together. =A0The ability to contour= and
smooth this product would seem suited here where air flow is an issue. =A0B= ut
I don't know if it would stand up to all the rigors (vibration, heat, e= tc.)
Just throwing it out there since JB Weld is smoothing the ports on several<= br> 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. =A0I saw some in HD that claims good for=
temps up to 450. =A0I'm hesitant, but this stuff seems to be a cousin t= o JB
Weld.
Bryan

JB weld ( and similar) is wonderful stuff that adheres to almost anything,<= br> and is amazingly strong. =A0So if need things to hold together and make a g= ood
seal - great. =A0But if you need real strength, anything that just adheres = to
the surface is not going to be as strong as a good weld. =A0So consider you= r
application, and what it has to do, and then decide.

FWIW,

Al G


--
Homepage: =A0http:/= /www.flyrotary.com/
Archive and UnSub:
http://mail.lancaironline.net:81/lists/flyrotary/List.html


--
Homepage: =A0http:/= /www.flyrotary.com/
Archive and UnSub: =A0 http://mail.lancaironline.net:81/lists= /flyrotary/List.html



--
David Leona= rd

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
h= ttp://RotaryRoster.net
--001e680f0e2407209f046888e28b--