I have a telescopic rod that I need to turn into a one piece rod and all I can think of to do this is with little bit of rod bond. If I do it this way will I lose  any sensitivity.  This will be a flipping rod / frog rod so a little lose of sensitivity is not going to be such a bad thing.

Glenn McMurrian

So you're going to bond the two sections with rod bond, right? Now you have a friction fit and a certain level of sensitivity. If you bond it you will have the same section to section contact you have now but the two sections will not be able to move relative to each other because of the rod bond. The weight will go up a tad. But one could argue it will be more rigid.

If a little loss of sensitivity is not a bad thing, why worry about it?

I predict you'll never be able to tell the difference.

I'm not sure why you "need" to turn it into a one piece rod, but there are a lot of things I don't understand.

From a purely technical standpoint if you add weight with no proportional increase in stiffness, there will be a sensitivity decrease. From a practical standpoint - you will never feel any difference.

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Flipping sticks (Florida versions as I know them) are 2 piece rods where the butt end is relatively short and extremely stiff and lines used are in the range of 30 to 60 lb. The joint is at the stiffer part of the blank which does not flex and offers no sensitivity value to the rod. Bonding the two sections together will present no problem.

To put the added weight of the epoxy in perspective, I did a really rough calculation (assuming conservative values) and I didn't make any mistakes, the weight of the epoxy would be roughly 0.06 grams (0.0021 ounces). Considering a drop of water is approximately 0.05 grams (0.0018 ounces) I feel safe stating the effect of the added weight of the epoxy is non existent, especially if the bonded joint is a friction fit as Michael stated.

My fishing habits are such that at times I stick the tip of the rod under water to alter the presentation of the lure, the rod and guides accumulate loads of water, grass and other debris during the retrieve, and I also on occasion handle the rod with wet slimy hands. Many times it rains and soaks the rod, reel and line, with all this going on and all the "added" weight to the rod I am not conscience of any change in the performance or sensitivity since I am too intent concentrating on fishing and when I hook a fish, I am oblivious to everything.

Glenn, sorry to ramble on but to answer your question about bonding the sections together, I wanted to share my experience to support Toms comment "From a practical standpoint-you will never feel any difference".

Go for it and have fun.

Monofilament lines stretch 10% and more. Braided gel-spun lines stretch in the 1% range. If you are using mono now switch to gel-spun and increase "sensitivity" by a factor of ten. You won't notice the extra weight the glue adds.

Glenn,
I suspect that one could take 100 two piece rods and build them up and fish with them.

Then, those same 100 rods could be glued together and fished with them again.

I would doubt very very much that the person who fished with the rods before and after the gluing would notice any difference in any of the rods.

Good luck