I have used tree pruning sealer before, but I cannot say whether it was beneficial
or not. After reading this thread, it does make some sense, specially for those
more fat than usual fig twigs.
I am currently experimenting with rooting some fat fig twigs (3/4 - 1 inch).
I have two garbage bags, one for the long twigs (2 foot plus)
and the other for short twigs (1 foot minus).
After reading this thread, I opened both bags to apply (grafting) wax
on the fat twigs apex as recommended in that thread.
I started with the bag containing the shorter twigs,
Wala, roots!!! Now, I already potted some.
The shorter ones were just sitting loosely on a moist
newspaper inside the bag - success.
The longer ones had some moist newspaper wrapped
around the bottom - no roots. Actually after
removing the newspaper, I noticed some (mushy) rotting.
This is also consistent with later posts in this same thread.
I cut off ~2 inch from the bottom and put back in the
bag with similar conditions as the shorter ones had.
I'll see what happens now...