A special formulation of alumina and low-fluxing clays developed to withstand the high kiln temperatures required for raking. Contains a dye which burns off when firing. An excellent smooth finish between the glass and kiln shelf. Hi-Fire Shelf Primer is also excellent for coating mandrels for beadmaking. 24 oz. (680g).
Mix 1 part powder to 5 parts water. Mix thoroughly. Apply evenly to shelf with Haik brush 4 or more times. Cure primed shelf at 550F(288C) for 20 min. Remove spent primer with 80 grit sandpaper or abrasive screen.
Hi Fire Kiln Wash MSDS