Question -are there problems with putting another layer of a thread epoxy like Flexcoat over an older layer done a few years back?

I was looking at an older 3 wt that I did and, looking at it from today's perspective, thought that I'd do another coat if I were presently working on it.

So curious when I have some epoxy mixed for another project if its a bad idea to run out another coat.

David

Fish-eyes (FE's) are always a possibility.
And - if you rough-up the surface to eliminate FE's- and you hit the thread - thread fuzzies are always a possibility. That risk is minimal if you originally applied a lot of (too much) finish. Which you will add to with another coat.
If you decide to go for it - if you are not happy with outcome - just rip it out and re wrap ad finish.
Herb

Additionally, if it is best if there is no loss of adhesion of the old coat. Epoxy will not run under a loose edge, so if it has loosened, carefully take it off. Thumbnails work well.

Once you have a solid base a coat or two should make it look pretty good.

I have done a few and never had fish eyes. It should go without saying that you want to clean any contaminants off the old surface.

If the current wraps and epoxy coat are in good shape, clean them with DNA then scuff with a fine 3M pad then apply a new thin coat. Shold be OK

David,
Now that a few years have gone by, why don't you strip off the guides and rewrap with some new colors and fresh finish. I have done this with many rods over the years. It is always fun to give the rod a fresh look.

You might also take the time to put on one of todays new type guides as well.

Good luck