Lid Wax Recipe
To stop lid sticking when firing Earthenware
Add 60ml (1/8 cup or 2 tablespoons) Alumina Hydrate to 125ml wax to create a special wax for firing lids on pots. When the wax burns off, the powdered, refractory alumina hydrate will stay behind, leaving a chalky resist.
This can also be applied to clay props (wasters) to avoid sticking to pots.