Preformed sprues that enhance control by eliminating suckback. Low 0.002 ash content: lowest known ash content of any known dental wax; leaves a cleaner mold cavity after burnout. Lower melting temperature: sprues melt 180°F to 200°F. Unique wax composition: reduced investment cracking; does not impregnate investment. Consistent quality: more uniform castings; consistent location.
Direct Sprues with Single Copings:
Small: precious metals
Medium: nonprecious metals
Large: nonprecious metals, heavier pontics, full-cast units
Indirect Sprues:
Multiple units, bridgework