Glueing stuffing tube. Epoxy or jb weld?

[Heaving Earth]

Ok so I need to glue in a new tube cause my old one had a kink. When I glued it I used epoxy, and it came out easy with a heat gun. Before I put in a new one, which is better? If it needs replacing does jb weld ever let go? Should I stick with epoxy? Thanks

[Rumdog]

I use epoxy with microballoons, and a little bit oc cf, or fg cloth. JB works well too, I just think its ugly.

[longballlumber]

Like Rummy, I prefer epoxy and fiberglass cloth. Make sure you scuff the area of your brass stuffing tube with 60-80 grit paper to make sure the bonding agent to grab onto.

Another to think about is acutally bonding in tube that is one size bigger and use it as a sleeved system. That way if you ever damage your stuffing tube you just slide out the damaged one and put in another with out needing to re-glue the stuffing tube.

Later,
Mike

[Basstronics]

If you go with JB weld you will have to cut and grind it out.

[Heaving Earth]

I ended up going with epoxy in case it ever needs to come out again. ImageUploadedByTapatalk1361411560.469190.jpg

[madmikepags]

I use JB weld, I CA a rubber O-ring on the bottom of hull where the tube goes thru (cats and Hydros) and pour the JB in there when the tube is in place. It actually looks pretty neat and is very strong, I also use a sleeve type system in most boats.

[iamandrew]

you mean polyester resin ? and not epoxy resin? because if youve mixed up epoxy right, it does not go that soft when its hot

[Heaving Earth]

No I mean epoxy. And yes it does go soft when heated up hot, and yes I mix it right.

[jcald2000]

JB Weld will take temps of over 300 F, normal epoxy about 150 F.

[martin]

Just about every epoxy ive used will soften if you use a soldering iron on the stuffing tube to heat the tube, makes changing the stuffing tube a doddle. As said JB Weld goes to much higher temps, thats why i dont use it for stuffing tubes as its dosnt make getting the tube out as easy re heating it.

[electric]

Just about every epoxy ive used will soften if you use a soldering iron on the stuffing tube to heat the tube, makes changing the stuffing tube a doddle. As said JB Weld goes to much higher temps, thats why i dont use it for stuffing tubes as its dosnt make getting the tube out as easy re heating it.

100 percent Agree! You WANT the glue to go soft with heat on the stuffing tube. It will make your life easier as sometimes they get damaged. It also is convenient when you are trying to rip out old stuff and re-do a hull.

[T.S.Davis]

I found JB weld to be too brittle. I always have epoxy on hand so I stick with that.

[madmikepags]

I have actually melted the epoxy on stuff tubes with high rpm setups, tube temps can get above 150 and have taken out the mounted tube. Yes these are a couple of rare cases but I've never had a prob w a jb mounted tube. Epoxy is fine though it easier to work with too.

[T.S.Davis]

If you want higher thermal properties you can mix in aluminum or graphite powder. Bullet proof.

[tlandauer]

I used Epoxy for my Mono, but JB for the Cat hull, I have been told that it will be a pain in the *** when time comes to change the stuffing tube. I haven't earned that status yet, meaning that I am relatively new to building boats, so this is educational for me to read every thread by experienced boaters!
I do however want to say that maybe I was not mixing the JB weld correctly, the impression I got was that it is Not as brittle as epoxy? I tried to snap a thin strip of JB, it will actually bend, where as the epoxy would have been snapped. Any input is greatly appreciated.