Crucible Shield will be your crucible's best friend! Specifically formulated to provide a non-stick coating for crucibles, thereby extending the life of one of the most used consumables in dental casting. Works with most dental alloys. Just paint it on and let it dry. Crucible Shield is blue so it's easy to see if any areas were missed when applying. Clean up is a breeze with water. Crucible Shield comes in a 2oz jar with 2 padded applicators.