To be honest I've never heard of this being done before but, going by the video, it looks like it does a good job.
Man that's gotta be hard on the brain cells.... yikes,
I used super glue a lot but only in very small doses and it stinks.
I can't imagine doing a whole guitar with it.
In the video he does mention that it doesn't smell bad. I guess this is a specially made type that doesn't have as strong a smell as regular superglue.Don’t do it - this stuff if nasty. The fumes are terrible - wear a mask and your eyes will water like crazy.
This has a tendency to turn white once it dries. Superglue is used to stabilize certain woods (like spalted maple) and fill small voids. As an actual topcoat, there are soooo many better options available.
I haven’t watched the video yet; I suspect if you were to try this as a topcoat you will end up regretting it.