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Author Topic: 4D Upper Spreader and a Sail Repair  (Read 2060 times)
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Trade Count: (+3)
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Posts: 43

Location: Central New Mexico

« on: November 13, 2010, 06:37 PM »

My 4D US decided to go live somewhere else. I need the length if anyone can post. Also, Prism lists the rod as .098" high modulus carbon. Nearest thing on-hand is .101" carbon - I assume not high modulus. It does not seem quite as stiff as the Prism rods but should work. Anyone see any problems here?

Unrelated repair question - I have a 2" rip in a sail that I've prepared for glue up with CA - close butt the sides and tape on the front, glue from the back side. I also have some Tedlar repair tape. Is glue only the preferred method? What are the reasons for avoiding Tedlar, if any?

Thanks for any suggestions.
Ca Ike
Trade Count: (+28)
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Posts: 1965

Location: Stockton, CA

« Reply #1 on: November 13, 2010, 08:20 PM »

The .101 should work but it will change the balance a  bit and on a no wind kite a small bit makes a big difference.  Use it to get you up and flying but I would get the right one asap.  As for your repair, I have had bad luck with ca glue only repairs.  If its a small tear in a low stress area either teldar or CA will work.  So far I haven't had any issues with teldar tape except when I didn't use a big enough piece on a tear near the standoff the tear opened back up a bit. The other issue with teldar taps is that it doesn't form well if you have to tape over a sewn seam.  The thread tends to leave bubbles in the tape and a small gap at the edge that can be a weak point for water and dirt to get into.  IF you can post a pic of the tear I can give you better repair advice.
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