<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">You are correct John. You can find low density polyethylene tubing in homes, as overflow tubing for water softeners for example. Nylon tubing is also used in a variety of applications in the home. However, most of the remainder piping is poly vinyl chroride or PVC for short, including the piping for hot water.<BR>
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Perfluorinated polymers such as FEP, PFA or PTFE (all Teflons, BTW) will practically never find their way in regular homes, due to expense primarily. They are very high performance materials used in extreme environments. Hot water is an inocuous application for PTFE, but steam, highly corrosive and hot chemicals, <BR>
and many petroleum based chemicals including most fuels
, would be typical applications.<BR>
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Matt K<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:<B>Re: What type of Teflon for headers? </B><BR>
Date:9/14/2003 10:46:36 PM Eastern Daylight Time<BR>
From:<A HREF="mailto:johnferrell@earthlink.net">johnferrell@earthlink.net</A><BR>
Reply-to:<A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>
To:<A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>
<I>Sent from the Internet </I><BR>
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I thought the plumbing tubing is polyethylene. </FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">The older, gray stuff was polybutylene and deteriorates with chlorine. My house has both. </FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
John Ferrell<BR>
6241 Phillippi Rd<BR>
Julian NC 27283<BR>
Phone: (336)685-9606<BR>
<A HREF="mailto:johnferrell@earthlink.net">johnferrell@earthlink.net</A><BR>
Dixie Competition Products<BR>
NSRCA 479 AMA 4190 W8CCW<BR>
"My Competition is Not My Enemy"<BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">----- Original Message ----- <BR>
<B>From:</B> <A HREF="mailto:cone.man@verizon.net">Dennis Cone</A> <BR>
<B>To:</B> <A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A> <BR>
<B>Sent:</B> Sunday, September 14, 2003 6:48 PM<BR>
<B>Subject:</B> RE: What type of Teflon for headers?<BR>
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</FONT><FONT COLOR="#000080" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Teflon tube,</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000080" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Just so every one knows this tubing is used for water line services mostly to and inside of house services. It has a high burst pressure and has a high temperature rating making it ideal for hot water use. Some municipalities allow this tubing to be used to plumb whole houses. It comes in several sizes and normally joined using a tool that expands the tubing and then is inserted onto the fitting. It has a high memory which when heated to the point that it turn’s clear and tied into a knot will when reheated return to it’s original shape. It is true it is available at Mc Master Carr but they do not sell to the modeling public but instead to the industrial trade. It may also be available at the local industrial plumbing store but they may not have the size you need in stock as the size modelers use is smaller than most water lines in homes. The largest size I have seen is ¾”. I have lots of this tubing in my drawer but never use it as 2-cycles don’t need it. Just thought a little history behind the source of this tubing would be of interest. Of course there may be many more uses that I am not aware of.</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000080" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> </FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=4 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Dennis Cone</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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