This pliable blue wax can be used for build up or spruing. Classic Ferris Blue Wax Wire formula
Spaghetti Wax Wire-8 Gauge (3.25mm) Diameter 1/2lb. Spool
Spaghetti Wax Wire 12 Gauge 2.0mm) Diameter 1/2lb. Spool
These are wax lengths for bronze casting that come cored or solid, and red (standard) or green (harder). For creating the gating system to use with the los wax method. It is often used to easily correct any mistakes by "blending-in" with the original wax part or substitute damaged sprue.
Plus, you can also use it as the armature when sculpting directly in wax for lost wax casting. ...