So well in fact that it can be used as an alternative to stitches. Medical grade cyanoacrylate is a bit different (less irritant) but in an emergency, the regular household kind can be used.
Yeah, I added one to my first-aid kit just for really emergency emergencies.
I also love cyanoacrylate because it stops sticking when you apply water to it. I don't worry about my fingers, because whenever I work with this family of glues, I just keep a glass of water on my workbench, into which I dip the fingers if I notice I spilled some glue on them. The glue immediately polymerizes, and you can pull/scratch it off.
No. Even fully cured cyanoacrylate can be picked off without taking skin off. It's actually kind of fun, like picking a scab. It doesn't come off easily though.
I did that after a metalworking incident (large greasy shaft with a burr slipped through my fingers), you can't even see the scar and my finger was cut open all the way to the bone.
It's also one of the few things that readily stops a bleeding nail if you are clipping a pet's nails and hit the quick (blood vessel region). Corn starch is supposed to, but I find CA is faster for deep cuts.
So well in fact that it can be used as an alternative to stitches. Medical grade cyanoacrylate is a bit different (less irritant) but in an emergency, the regular household kind can be used.