Northstar Turbo Cobalt – COE 33 Borosilicate Frit NS-33
Turbo Cobalt is the most intense cobalt blue in the Northstar palette. It is great for stringer application, and stretching out thin. If kept moderately thick, Turbo Cobalt is an excellent faux black. Because of its intensity, NS-33 Turbo Cobalt must be worked in a highly oxidizing flame to prevent graying. If however you are looking for a battleship gray, it can be achieved by working Turbo Cobalt in a heavily reducing flame. For a nice color combination try layering NS-26 Double Amber/Purple over NS-33 Turbo Cobalt.
Northstar Glassworks is a Tigard, Oregon based manufacturer of Borocolour® rod, frit, powder, tube, cane and Precision 104 soft glass for glass artists.
Frit Sizing: Large = 25 mesh; Small = 38 mesh; Fine = 70 mesh; Powder = 100 mesh.