A single coat lasts about three to four before first signs of nail tip wear but if you do two coats and seal it with a top coat, these easily wear upto eight days without any chipping. (theinstylejournal.com)
If you do use a clipper, trim only nail tips to avoid cutting into the quick — the vein that runs into your dog's nails. (fox19.com)
This is a good time to end the session - but not before applying styptic powder to the bleeding nail tip. (pets.webmd.com)