Bronze Varnishes.
Brown Varnish.
Copper Varnishes.
I.—One hundred and ten parts of sandarac and 30 parts of rosin, dissolved in sufficient quantity of alcohol; 5 parts of glycerine are to be added.
| II.— | Sandarac | 10 parts |
|---|---|---|
| Rosin | 3 parts | |
| Glycerine | 1/2 part | |
| Alcohol, a sufficient quantity. | ||
Dissolve the two rosins in sufficient alcohol and add the glycerine.
Decorative Metal Varnishes.—
| I Per Cent | II Per Cent | III Per Cent | IV Per Cent | |
|---|---|---|---|---|
| Seed lac | 11.5 | — | — | — |
| Amber | 7.6 | — | — | 13.5 |
| Gamboge | 7.6 | — | — | — |
| Dragon’s blood | 0.18 | — | — | — |
| Saffron | 0.16 | — | — | — |
| Sandarac | — | 11.2 | 15.9 | 16.6 |
| Mastic | — | 6.5 | 14.0 | 3.4 |
| Elemi | — | 3.3 | — | — |
| Venice turpentine | — | — | 1.0 | 3.4 |
| Camphor | — | 1.5 | — | — |
| Aloe | — | — | 7.0 | — |
| Alcohol | 72.96 | 77.5 | 66.1 | 63.2 |
As will be seen, only natural colors are used. The so-called “gold lacquer” is composed as follows: Sandarac, 6.25 parts; mastic, 3 parts; shellac, 12.5 parts; Venice turpentine, 2.5 parts; aloe, 0.75 parts; gamboge, 3 parts; alcohol, 72 parts. The solution is filtered. Applied in a thin coating this varnish shows a handsome golden shade. Other metal varnishes have the following composition:
| V Per Cent | VI Per Cent | VII Per Cent | |
|---|---|---|---|
| Shellac | 17.5 | — | 18.0 |
| Yellow acaroid gum | 13.1 | 25.0 | — |
| Manila | — | 8.0 | 9.0 |
| Alcohol | 69.4 | 67.0 | 63.0 |