Sealing the Corks.—If the bottles are stored in a damp place where the corks are liable to rot, and also if they are to be kept more than two years, it is well to cover the ends of the corks with wax. This also prevents attacks by insects.

The Sealing Wax used should be sufficiently adhesive, but not too hard and brittle. Various receipts are given for its preparation, and the following is given by Boireau: Melt common pitch or turpentine over a slow fire, taking care not to allow it to boil over. When it is well melted, remove whatever impurities it contains, add a little tallow—a little less than an ounce of tallow to a pound of pitch. Its natural color is reddish, and is used without addition of coloring matter. Rosin may be substituted for the pitch. Instead of making this preparation, the fruit wax of commerce may be used. About the same quantity of tallow, however, should be added, if sealing wax is used, or otherwise it will be too brittle. The tallow may be replaced by beeswax with advantage.

An excellent bottle wax is said to be made by melting together two pounds rosin, one pound Burgundy pitch, one-fourth pound yellow wax, and one-eighth pound red wax. The wax may be replaced by three ounces of tallow. If too much tallow is added the cement will be too soft.

The Cement is Applied Hot.—It must be melted, and the bottle reversed and dipped into it, so that the wax will cover the end of the cork and a small part of the neck of the bottle, say down to the ring. It is entirely unnecessary to cover more of the neck of the bottle.

Coloring Matter may be added to these different cements, and any desired color produced. A little more than half an ounce of the following named substances is stirred in to one pound of the melted wax.

A brilliant red is produced by vermilion, a duller red by red ochre, black with animal black, yellow with orpiment, dark yellow with yellow ochre, and blue with Prussian blue. Green is made by mixing equal parts of blue and yellow, and other shades may be made by mixing the different colors to suit the taste.

Fig. 34.

Pincers for
Removing Wax.

Fig. 35.