Whip Mix Crucible Former #4390, Conical, 2-1/2" Diameter, Plastic

Whip Mix Crucible Former #4390 is a conical plastic crucible former designed for use with 2-1/2" diameter casting rings. This durable, reusable plastic former features a reinforced base and tapered design for easy removal of molds. The former allows for maximum expansion of investment material and eliminates the need for ring liners, providing clean burnout of wax shapes and preventing porosity in castings.