Hard vitreous coating applied to pottery to make it smooth and watertight

Let's find possible answers to "Hard vitreous coating applied to pottery to make it smooth and watertight" crossword clue. First of all, we will look for a few extra hints for this entry: Hard vitreous coating applied to pottery to make it smooth and watertight. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.