Cobalt Frit 4oz Northstar Glass COE 33 Borosilicate

NS-01 Cobalt: Can take a lot of heat and can be worked in a wide range of flame settings. Stay out of reducing flames to prevent dulling or gray streaking to occur.

CAUTION: AVOID EXPOSURE TO GLASS DUST. ALWAYS USE A DUST MASK AND EXHAUST HOOD WHEN HANDLING FRIT AND POWDERS.