| I Per Cent | II Per Cent | III Per Cent | IV Per Cent | V Per Cent | |
|---|---|---|---|---|---|
| Shellac | 14.5 | 6.5 | 13.5 | 6.3 | 8.3 |
| Mastic | 6.0 | 2.0 | — | — | 1.1 |
| Sandarac | 6.0 | 13.0 | — | 1.3 | 1.1 |
| Camphor | 1.0 | — | 0.5 | 1.5 | — |
| Benzoin | — | — | — | — | 13.7 |
| Alcohol | 72.5 | 78.5 | 86.0 | 79.2 | 75.8 |
Scent with oil of benzoin, of lavender, or of rosemary. Other authors give the following recipes:
| VI Per Cent | VII Per Cent | VIII Per Cent | IX Per Cent | |
|---|---|---|---|---|
| Blond shellac | 11.5 | 13.0 | 9.0 | — |
| White shellac | 11.5 | — | — | — |
| Camphor | — | 0.7 | — | — |
| Powdered sugar | — | 0.7 | — | — |
| Sandarac | — | — | 18.0 | 6.6 |
| Mastic | — | — | — | 13.0 |
| Venice turpentine | — | — | 2.0 | 6.6 |
| Alcohol | 77.0 | 85.6 | 71.0 | 73.8 |
All solutions may be prepared in the cold, but the fact that mastic does not dissolve entirely, must not be lost sight of.
Bottle Varnish.
Amber-colored bottles for substances acted upon by the actinic rays of light may be obtained from almost any manufacturer of bottles.
Can Varnish.
Copal Varnish.
I.—Melt 8 pounds best copal and mix with 20 pounds very clear matured oil. Then boil 4 to 5 hours at moderate heat until it draws threads; now mix with 35 pounds oil of turpentine, strain and keep for use. This varnish dries rather slowly, therefore varnishers generally mix it one-half with another varnish, which is prepared by boiling for 4 hours, 20 pounds clear linseed oil and 8 pounds very pure, white anime rosin, to which is subsequently added 35 pounds oil of turpentine.
II.—Mix the following two varnishes: