Non-Asbestos Paper Flask Liner, Round, 101.6mm dia.

This asbestos-free absorbent flask paper effectively wicks away moisture from platinum-casting investment, helping to ensure thorough, even curing of the investment around your patterns. The material is ideal for both high-temperature investments and for any metals that must cool to room temperature before devesting. This 4"-round, 1/16"-thick paper can be trimmed as needed to fit into the base of a variety of flask sizes, up to 4"; for larger flasks, set the square in the center of the flask base or use two or more squares to line the flask bottom (trim to avoid overlapping). Package contains 20 pieces.