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Question for Tom K.: strength of CP'd wraps
Posted by:
rich margiotta
(---.hsd1.tn.comcast.net)
Date: December 04, 2012 08:26PM
Tom:
I know you'vre done tests of CP vs No-Cp wraps and concluded that the CP wraps were only slightly less strong (10%) and that difference was within the margin of error for your tests. (Right?) Two questions: (1) were the wraps finished with epoxy and (2) would you expect the same results if spar varnish were used? Thanks! Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Tom Kirkman
(Moderator)
Date: December 04, 2012 08:42PM
Not sure if there was any margin of error for the test, but that should have been much less than 10%. I'd have to go back and look up the original article which I think was in one of the first few issues. I think the 10% difference was the same with or without epoxy.
............. Re: Question for Tom K.: strength of CP'd wraps
Posted by:
ernest sebastian
(---.fast.net.id)
Date: December 05, 2012 02:30AM
sorry to jump in and ask Tom with another question
if i would wrap fuji KB/KT micro(without forhan's lock) is the 10% could be more essential to guide holding strength ? for now i always avoid regular nylon, but in some shop they offer regular thread kit with good price thanks Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Tom Kirkman
(Moderator)
Date: December 05, 2012 07:09AM
What we found, was that you will destroy the guide frame before you will tear the guide out of the wrap, with or without CP. It's just not an issue.
As far as straight single foot pull outs, that's a different story but is also independent of CP. The only thing that can stop that is some sort of security wrap. ..................... Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Chris Phillips
(62.103.98.---)
Date: December 06, 2012 05:09AM
Tom i also apologize for jumping in and asking another one.
Some people say that if you use CP then the finish does not quite reach the blank satisfactorily. Thus they avoid using nylons and go only with colorfast thread. True or False? Phillips Hot Rods C Y P R U S [phillipshotrods.wix.com] Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Tom Kirkman
(Moderator)
Date: December 06, 2012 07:54AM
The point of CP is to seal the thread so the epoxy cannot penetrate into the thread. The epoxy does not need to reach the blank - the CP will reach the blank.
............... Re: Question for Tom K.: strength of CP'd wraps
Posted by:
ernest sebastian
(---.fast.net.id)
Date: December 06, 2012 11:10AM
Tom Kirkman Wrote:
------------------------------------------------------- > The point of CP is to seal the thread so the epoxy > cannot penetrate into the thread. The epoxy does > not need to reach the blank - the CP will reach > the blank. > > ............... how about to fill the tunnel if epoxy can't penetrate trough the thread to the blank? Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Chris Phillips
(---.netrun.cytanet.com.cy)
Date: December 06, 2012 11:21AM
here we go.....
Sorry Tom !!!! Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Tom Kirkman
(Moderator)
Date: December 06, 2012 11:27AM
If you read the original article, you'll note that the ability of a guide and wrap to prevent twisting (stability) was a direct result of getting something, whether it be CP or epoxy, in the tunnel. This creates a sort of "shelf" so that the guide foot sits on a wider, flatter area instead of a just a round rod blank.
.............. Re: Question for Tom K.: strength of CP'd wraps
Posted by:
rich margiotta
(---.hsd1.tn.comcast.net)
Date: December 07, 2012 09:58PM
Tom:
How can I get a copy of the original article? --Rich Re: Question for Tom K.: strength of CP'd wraps
Posted by:
Robert A. Guist
(---.nmci.navy.mil)
Date: December 10, 2012 06:48AM
Hello Rich.
I think the articule is in volume 4, issue 2, pages 10-15.(actually 2 articules). Go to RodMaker Magazine on the left and inquire there about obtaining the articule or the 4/2 magazine. Good Luck and Tight Wraps. Bob, New Bern, NC. Sorry, only registered users may post in this forum.
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