Clear Fingernail polish as a superglue substitute?

If you don't like it shiny than spray it with a coat of mat sealer after you put the nail polish on.

Well I've been trying the nail polish and you're right, it is super glossy. I may end up sanding down the joints and ares where the parts meet and using the old super glue fix. Either that or end up with a super shiny figure. Maybe a layer of color on top of the polish? If it rubs the paint it may leave a shiny trail, but at least it would be the same color right?

I use nail polish quite frequently, but not for the joint problem you describe. The finish is usually super smooth (indeed, I find things coated with it slip out of your fingers easily, especially rounded objects), so I would think that would facilitate joint movement. I don't know if you can get clear nail polish in non-gloss or not (all of mine is gloss), which might not be desirable (I.e., if you have a matte-painted figure, you don't want its hips to be shiny for no reason).

I use finger nail polish on a regular basis. It works best of you use a hairdryer on it after you put it on. Otherwise it takes a very long time to dry. The best thing to use is epoxy but I'm to lazy to wait 15 minutes fore it to dry.