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Sealing-wax Impressions

Sealing-wax is a very handy and useful substance for obtaining any particular impression to be afterwards inclosed within or attached to a pattern for moulding in sand. The wax must be of good quality and melted in a metal vessel over a lamp, after which the pattern can be pressed down upon the wax just before it congeals, and a beautiful impression will result if the pattern is thoroughly clean. Sealing-wax impressions make good moulds for plaster.