I was getting ready to put the fins on my Talon 2 kit and started thinking there had to be a better way to get epoxy in the body tube faster and more efficiently. YES, I’m impatient inventor/builder type person. 😯

I grabbed a 12 cc syringe from my wife’s stash (She’s a housecall Veterinarian), trimmed the protective housing that it comes in so the body sets upright in it with the plunger removed. I mixed up a batch of 15min epoxy and pored it in. Long story short, I had 14 minutes to spare. There will be an air space when you put the plunger in, but it makes no difference IF YOU PUT THE PLUNGER IN SLOW AND BE READY FOR IT TO COME OUT THE OTHER END! 😛

You can monitor the amount going in, it is forced through the cuts so that you have some on the outside and inside of the body tube, plus the bulk lands on the motor tube.

By the time I got the fins in and taped I could flip it to where the fins were down and have the epoxy run down the fins inside and make a nice fillet on the inside. There was plenty of epoxy on the motor tube (I looked inside) to coat the motor tube and run back on the fin. I didn’t have any leak back out either.

The next two sets of fins I did with 5 minute epoxy. I had way more time than was needed to get everything aligned. IMO that sure beats the 30 min epoxy, build up the contact point one line at a time thing!!!!
I figure if I feel a need to add more to make a fillet from the fin to motor tube, I can drill a little hole on either side of the fins and pump in some more epoxy and let it run down from fore to aft of the fins.

If you want to get way inside the body tube, I was thinking you can CA glue a straw or hose on the syringe. The only problem with that is you need to make sure there is enough epoxy in it to fill the straw/hose and then expel the proper amount of epoxy needed. Most jobs shouldn’t need that much though.

This technique should work equally well with fiberglass resin and resin with micro balloons in it.

Joebob says check it out… 8)