BESQUAL Castingr Sprue Wax with Reservoir - 12ga , (2mm) GREEN 50pk . Used - #749-12
Description
Casting SPRUE WAX WITH RESERVOIR - 12 gauge, green 50/Pk. Used to connect the WAX model WITH the casting mold's opening. During burnout, the WAX is eliminated to leave channels through which molten metal flows into the mold cavity. Using a Casting SPRUE WITH RESERVOIR prevents localized shrinkage porosity. The RESERVOIR a piece of WAX attached to the SPRUE former approximately 1mm from the WAX pattern.