I have a piece of slip-casted (not by me) greenware that is now fired into bisque. It had a small patch of slip and it appears that during the firing process this little patch fell out, or evaporated, or some such. Anyway, it has a small irregular gouge about 1/16" deep by about 1/16" to 1/18" long. I’d like to somehow patch this before I glaze/fire it. Suggestions?
Is Bisque-Fix my best option? And if so, do I need to refire it before I glaze it?