Northstar Cobalt Blue Rod

Northstar's Borosilicate COBALT BLUE Rod. This is First Quality Glass Rod approx. 7mm in Diameter with a 20"Length. All colors shown after being flameworked. Cobalt Blue is well suited for small blown work, as well as sculpture when a medium transparent blue is desired. This Cobalt Blue can take a lot of heat and can be worked in a wide range of flame settings. To avoid any dulling or Greying, stay out of reducing flames. This item is available by the pound (LB), 1/2 lb., or the Piece (PC).