X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 05 Jan 2012 16:58:44 -0500 Message-ID: X-Original-Return-Path: Received: from imr-db02.mx.aol.com ([205.188.91.96] verified) by logan.com (CommuniGate Pro SMTP 5.4.3) with ESMTP id 5339018 for lml@lancaironline.net; Thu, 05 Jan 2012 14:24:49 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.91.96; envelope-from=Sky2high@aol.com Received: from mtaomg-ma04.r1000.mx.aol.com (mtaomg-ma04.r1000.mx.aol.com [172.29.41.11]) by imr-db02.mx.aol.com (8.14.1/8.14.1) with ESMTP id q05JO6CL016526 for ; Thu, 5 Jan 2012 14:24:06 -0500 Received: from core-mta002a.r1000.mail.aol.com (core-mta002.r1000.mail.aol.com [172.29.234.133]) by mtaomg-ma04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 39C86E000095 for ; Thu, 5 Jan 2012 14:24:06 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <6130.6250453e.3c3752d6@aol.com> X-Original-Date: Thu, 5 Jan 2012 14:24:06 -0500 (EST) Subject: Re: [LML] Tygon vs Nylaflow X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_6130.6250453e.3c3752d6_boundary" X-Mailer: AOL 9.7 sub 19 X-Originating-IP: [24.1.9.48] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:352285728:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d290b4f05f8d60311 --part1_6130.6250453e.3c3752d6_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Bob, Thanks for the info. I will certainly look into it. Scott In a message dated 1/5/2012 12:59:51 P.M. Central Standard Time, n103md@yahoo.com writes: Scott: You may want to reconsider the Tygon + Nylaflow combination. Tygon (vinyl) tubing has a lot of plasticizers to make it flexible. Even the "food grade" has a bunch of phthalates in it that I would not consider "food". Where Tygon has been laying in contact with other materials, such as plexiglas (acrylic), the plexiglas is discolored and more brittle. My Nylaflow tubes were sheathed where necessary with a polypropylene tubing that I believe to be less damaging. After ten+ years, the Nylaflow felt brittle and could be shattered with a hammer (after removal). New Nylaflow should not crack when crushed. A few years ago, I replaced all the Nylaflow with DHI Kevlar-wrapped instrumentation tubing. Search the archives for "DHI" For example: http://lancaironline.net/lists/lml/Message/20601.html http://lancaironline.net/lists/lml/Message/39754.html http://lancaironline.net/lists/lml/Message/52689.html > Brake lines are the original Nylaflow, also encased in > clear food-quality Tygon tubing for protection, properly > supported near the brakes and with an ample curve so > that gear retraction will only slightly twist them when > everything is sucked up. I see no reason to replace > them at this time. -bob -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html --part1_6130.6250453e.3c3752d6_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Bob,
 
Thanks for the info.  I will certainly look into it.
 
Scott
 
In a message dated 1/5/2012 12:59:51 P.M. Central Standard Time,=20 n103md@yahoo.com writes:
= Scott:
You may want to reconsider the Tygon + Nylaflow=20 combination.
Tygon (vinyl) tubing has a lot of plasticizers to make it= =20 flexible.
Even the "food grade" has a bunch of phthalates in it that= =20 I
would not consider "food". Where Tygon has been laying in
contact= with=20 other materials, such as plexiglas (acrylic),
the plexiglas is discolo= red=20 and more brittle.
My Nylaflow tubes were sheathed where necessary with=
a=20 polypropylene tubing that I believe to be less damaging.
After ten+ ye= ars,=20 the Nylaflow felt brittle and could be shattered
with a hammer (after= =20 removal). New Nylaflow should not crack
when crushed.

A few yea= rs=20 ago, I replaced all the Nylaflow with DHI
Kevlar-wrapped instrumentati= on=20 tubing. Search the archives for "DHI"
For=20 example:
http://lancaironline.net/lists/lml/Message/20601.html
http= ://lancaironline.net/lists/lml/Message/39754.html
http://lancaironline.n= et/lists/lml/Message/52689.html

>=20 Brake lines are the original Nylaflow, also encased in
> clear=20 food-quality Tygon tubing for protection, properly
> supported near= the=20 brakes and with an ample curve so
> that gear retraction will only= =20 slightly twist them when
> everything is sucked up.  I see no= =20 reason to replace
> them at this time.


-bob

--For=20 archives and unsub=20 http://mail.lancaironline.net:81/lists/lml/List.html
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