Penguin Pottery - Clear Glaze Dry Powder. Mid Fire Glaze for Clay, Pottery Glaze, Cone 5 and Cone 6 - Ceramic Glaze for Pottery (Dry Glaze | 3 lbs | 1.4 kg)

Penguin Pottery offers lead-free, non-toxic, food-safe mid-fire glazes with a zinc-free, glossy finish. They come with instructions for proper firing and a lifetime warranty.

• The description claims the glazes are lead-free, non-toxic, and food-safe.
• The description claims the glazes have a zinc-free, glossy finish.
• The description claims the glazes require proper firing in a calibrated pottery kiln.
• The description claims all products are backed by a lifetime warranty.