Black Lightning is a very dense black with silver. Black Lightning can yield a mirror like blue metallic finish or if over-reduced an organic earthy tone. To keep Black Lightning most vibrant, work in a super oxidizing environment until you are finished with the piece. Then, turn the flame down and bathe the piece in a super reducing flame for several seconds to produce the mirror like sheen. For another great effect, encase Black Lightning with clear. This color can be stretched out and is great for blown work. If heavily encased, be sure to anneal thoroughly. This is the bigger brother of Alaskan Thunder.
Available in Rod, Frit, Fine Frit, and Powder.
Northstar Glassworks Borocolour Colored Rods & Frit
Northstar Borocolour has a COE of 33 and may be combined with Simax, Northstar and any other glass with a similar coefficient of thermal expansion.
Northstar Glassworks Borocolour Colored Rods are an average length of 18" with a diameter of 5-9 mm diameters. Hand pulled tubes vary in length from 8-22 in. with a diameter of 15-38 mm and wall thickness range of 2-6 mm. Northstar Rods and Tubes are sold by the pound with a 1/4 pound minimum purchase per color.
Northstar Borocolour frits are available in five grain sizes. Large frit is coarse 25 mesh - approximately .055 inches or 1.397 mm. Small frit is finer 38 mesh - approximately .024 inches or .6096 mm. Fine frit is 70 mesh and and powder is 100 mesh. These four frits come packaged in 4 oz. containers. Some colors are available in 16 oz. The fifth product size - called fore powder is between fine and powder in grit size and comes in a 16 oz. container.
Pound and 1/4 Pound Minimum Items
Items labeled in this manner are sold by weight at a price per pound. The price you see is the pound price. You will be charged for the actual weight of the product you receive. If you wish to order a specific number of rods, tubes, sticks or the like, enter that information in the comment box upon checkout. We will do our best to accommodate you knowing how many pounds you want (from the shopping cart) along with how many tubes/items you want from the comment box.