(See also Leather.)
Acid-free Blacking.—
| Lampblack | 27–36 parts |
| Bone black | 3 parts |
| Syrup | 60–70 parts |
Put in a kettle and under gentle heat stir together until a smooth, homogeneous mass has been attained. In another kettle put 3 parts of finely shredded gutta percha and warm over an open fire until it begins to run, then add, with constant stirring, 5 parts of olive oil, continuing the heat until the gum is completely dissolved. When this occurs dissolve in 1 part of stearine, and add the whole while still hot in a slow stream, and under diligent and constant stirring, to the mixture of syrup and blacks. Continue the agitation of the mass until it is completely homogeneous. Now dissolve 4 parts of Senegal gum in 12 parts of water, and add the solution to the foregoing mass. Stir well in and finally add sufficient mirbane (about 1/5 part) to perfume.
Blacking Pastes.
| I.— | Marseilles soap | 122 parts |
|---|---|---|
| Potassium carbonate | 61 parts | |
| Beeswax | 500 parts | |
| Water | 2,000 parts |
Mix and boil together with occasional stirring until a smooth, homogeneous paste is obtained, then add, a little at a time, and under constant stirring, the following: {632}
| Rock candy, powdered | 153 parts |
| Gum arabic, powdered | 61 parts |
| Ivory black | 1,000 parts |
Stir until homogeneous, then pour, while still hot, into boxes.
The following makes a very brilliant and durable black polish for shoes: