In 10 minutes you can process all your gloves.
Let it dry (you may use radiator).
Your are done. Take your phone and try, good luck!
1) Not as responsible as your finger, but sufficient to make and receive calls on the frost.
2) Sometimes your finger may become a little gray with graphite after wearing a glove, like if you touch pencil lead. It is easily washed off.
3) I didn't try it on white or light gloves, it may spoil their look, so be careful.
Thank you for attention!