Would this even be a clear coating option?

Most finishes are already a two-part conversion varnish, known as CV. It is comprised of a resin and a also catalyst to promote rapid curing. It’s just sprayed on and self-levels instead of being poured on screed-off like in the video
 
Has numerous issues, among other things that type of application only works on a dead flat surface, which is a limited subset of guitar styles/shapes.

Which is not to say that we don't have folks finishing with epoxy - just not that type of low-viscosity bartop epoxy. As far as I recall there's a good bit of epoxy finishing (epoxy as sealer, epoxy as the finish itself) discussion in one or more of mapleglo's Devil Bass build threads.
 
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Here on the Luther's Corner, as a group we have tried just about every finishing method that exists, in the endless search for some process that's super easy and foolproof. We're still looking....Most of us will agree that finishing basses is much harder than building them.
 
Here on the Luther's Corner, as a group we have tried just about every finishing method that exists, in the endless search for some process that's super easy and foolproof. We're still looking....Most of us will agree that finishing basses is much harder than building them.

I agree with that. I'm finishing a guitar body right now and clear coating is the part I dread the most. Currently I'm using a wipe on poly mixture that seems to be working well.

BnB
 
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On my current project I just moved into the step of straight Minwax wipe on poly. Up to now I was using a 50/50 mix of poly and mineraa spirits.
IMG_20180409_202808233.jpg

One wet coat. It went on pretty level.
BnB