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<div class=Section1>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I would recommend using <span
class=SpellE>Sikaflex</span> 1A. It is about as environmentally sound as a
caulking comes. <span class=GramE>Moisture curing, as well.</span> One other
thought (if someone hasn’t already mentioned it): put this puppy at the bottom
of your string so that the potential difference to ground is a low as possible.
<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Peter<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<div>

<p class=MsoNormal><font size=1 color=navy face="Times New Roman"><span
style='font-size:9.0pt;mso-bidi-font-family:Arial;color:navy;mso-no-proof:yes'><span
style='mso-spacerun:yes'>                                                                               
</span></span></font><font color=navy><span style='mso-bidi-font-family:Arial;
color:navy;mso-no-proof:yes'><o:p></o:p></span></font></p>

<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt;mso-no-proof:
yes'> </span></font><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman";color:windowtext'><o:p></o:p></span></font></p>

</div>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Bill <span class=SpellE>Hoffer</span><br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, May 25, 2010 6:12
PM<br>
<b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] Rip in
panel backing</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Brian<br>
<br>
In my past life working for a module manufacturer, we used Dow Corning PV 804
silicone sealant. It comes in black and white flavors, usually not found off
the shelf at Home <span class=SpellE>Depo</span>.   I believe it is the
standard used by most module manufacturers and the only silicon sealant that
meets UL746 Polymeric materials for electrical applications (Insulating tabs
electrically).  We experimented with many types with similar results, but
when UL listing a module you can only use UL listed components (or you get to
pay to perform those tests on that material too!).  The price of PV 804
reflects the UL listing.  You would need to ask a chemist at Dow Corning
if it has a different composition than the common off the shelf
varieties.  It is great stuff, sticks to everything (especially opposite
colored pants!) and moves well between two materials that may expand and
contract at different rates with varying temperatures, like a module is often
exposed to.<br>
<br>
Bill<o:p></o:p></span></font></p>

<div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Tue, May 25, 2010 at 4:51 PM, Brian Teitelbaum <<a
href="mailto:bteitelbaum@aeesolar.com">bteitelbaum@aeesolar.com</a>> wrote:<o:p></o:p></span></font></p>

<div link=blue vlink=purple>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'>I like Blair’s idea, but I’ve always used a silicone sealant
that doesn’t use acetic acid as the curing agent. Dow #739 is one type, but any
silicone sealant that is rated as food-grade, or for aquariums, should work
fine. The 739 is a “moisture-cure”, 100% silicone, which uses moisture present
in the air as the curing agent. I was told many years ago that this is the
stuff that is used by module manufacturers to attach and seal module junction
boxes and the exit point in the laminate where the tabs come out. It would be
great if a module rep could confirm this with us.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'>Brian Teitelbaum</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'>AEE Solar</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 color="#1f497d" face="Times New Roman"><span style='font-size:12.0pt;
color:#1F497D'> </span></font><o:p></o:p></p>

<div>

<div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0in 0in 0in;
border-color:-moz-use-text-color -moz-use-text-color'>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face="Times New Roman"><span style='font-size:10.0pt;font-weight:bold'>From:</span></font></b><font
size=2><span style='font-size:10.0pt'> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Blair May<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, May 25, 2010 3:09
AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'RE-wrenches'<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] Rip in
panel backing</span></font><o:p></o:p></p>

</div>

</div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=blue face="Times New Roman"><span style='font-size:10.0pt;
color:blue'>I use a heat gun to remove moisture & smooth out the rip then
I've used some <span class=SpellE>bitchathane</span> w/ foil tape over that.</span></font><o:p></o:p></p>

</div>

<div>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=blue face="Times New Roman"><span style='font-size:10.0pt;
color:blue'>I am not sure about the possible corrosive effects of the silicone
during curing.</span></font><o:p></o:p></p>

</div>

<blockquote style='margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>

<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><font
size=2 face="Times New Roman"><span style='font-size:10.0pt'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <b><span
style='font-weight:bold'>On Behalf Of </span></b>bob<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, May 25, 2010 5:49
AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'RE-wrenches'<br>
<b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] Rip in
panel backing</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'>I have a customer
who just put a rip in the (<span class=SpellE>tedlar</span>?) on the back of a
Solar World 175 watt panel. For some reason he thought that he needed to move the
leg to a different hole on his RGM mount instead of just collapsing it.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'>What’s the best
way to seal it back up?</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'>There is no other
internal damage that is noticeable its about 1.5” long and ½” at the widest
end.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'>My first thought
is to use silicone caulk, but I thought I would pick the collective brain, so
to speak.</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'> </span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'>Thanks,</span></font><o:p></o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 face="Times New Roman"><span style='font-size:14.0pt'>Bob Ellison</span></font><o:p></o:p></p>

</blockquote>

</div>

</div>

<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
<br clear=all>
<br>
-- <br>
Bill <span class=SpellE>Hoffer</span> PE<br>
Sunergy Engineering Services PLLC<br>
<st1:Street w:st="on"><st1:address w:st="on">2504 Columbia Ave NW</st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on">East Wenatchee</st1:City> <st1:State
 w:st="on">WA</st1:State> <st1:PostalCode w:st="on">98802-3941</st1:PostalCode></st1:place><br>
<a href="mailto:SunEngSer@gmail.com">SunEngSer@gmail.com</a> (509)470-7762<o:p></o:p></span></font></p>

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