Duct tape has a tendency to shrink if stretched tight when applying. I have not done this yet but to me a good filament tape that uses fiberglass strands would be the best bet.
...try the Kyosho (better) or the Tamiya 'aluminium tape used for body fixes or heat guarding or whatever...Should have a small roll at your LHS...works great, IMHO better than duct tape too...pliable so as to hold a shape but the fibers work great at keeping it all together...pretty sticky too...one full loop with 1 or 2 cms overlap and you're good to go...
Packing tape with glass fibre strands. Very strong, I used them to tape my mulchers, and they don't balloon when I was running a 6S 1700kV truggy setup.
Somebody on the Traxxas forum has done this mod and claims to have had great succes with it:
He used phaltlines on his E Revo BE, in these tires there are two grooves, he turned kevlar strings in those grooves a few times untill they're almost filled up, and then let some CA glue soak in there.
Packing tape with glass fibre strands. Very strong, I used them to tape my mulchers, and they don't balloon when I was running a 6S 1700kV truggy setup.
I've done this many times and it is a sure fire tire fix !!!!
Duct tape is questionable at best.
Just my 2cents.
I retired from RC, now life is all about guns and long range shooting.
yea, you gotta make sure your cleaning the inside of the tire with some sorta soap. i use denat. alcohol. then wipe dry with lint free towel. i found that gorilla duct tape is the best. ive tried the 3m strapping tape with string fiber but the gorilla duct tape last longer. but i think its heavier though.
and instead of wrapping tape twice...once is good enough. but make sure you overlap the end with 1 inch of tape.
make sure you have the tape spot on in the middle and press down on the tape every few inches while your taping around the tire.