Black Jack COE 33 Trautman Art Glass Rod Special unfocused flame to prevent surface

unfocused flame to prevent surface scarring

Green and Super Dark Green-looks like black

why we wear glasses

Now one of our most popular colors

Gold Aventurine Filigrana 4-6mm

Black Jack COE 33 Trautman Art Glass Rod Special unfocused flame to prevent surface622005 TAG Black Jack COE 33 Borosilicate Trautman Art Glass Rod Black Jack goes almost clear when hot, but self strikes back through brown to near black depending on how thick you use it. Black Jack likes an oxidizing flame, but does not reduce with gray streaks like most black boro colors. In the curls shown here, we had to get the glass right on top of the light to see the brown where its thinner. Black Jack is not suitable for thin stringer work