Midnight Frit 4oz Northstar Glass COE 33 Borosilicate

Northstar Midnight is a deep opaque blue. It is great for stringers and thin cane work and can be stretched out far! It is heat and flame sensitive. It must be warmed up slowly and once glowing, heat gently. Because the color is so intense it must be worked in an oxidizing flame. If the flame is not oxidizing enough, the color will develop grayish brown streaks.   

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