A non-hardening protective coating for the kiln bottom and tops of shelves. It is easy to apply and remove. It can be used in all kilns through 2400°F.
HOW TO MIX AND APPLY CERAMIC SHELF PRIMER
Mix portions as needed with water to the consistency of thick cream. Stir thoroughly. Apply a thin, even coat to the kiln bottom and tops of shelves with a soft brush and let dry. The wet mixture may be stored in a jar for future use. Any powder, kiln wash has an unlimited shelf life. Easily removed by brushing or scraping.
For more information on preparing your kiln for firing check out this link.