Amalgam For Plaster.
Plastic Metal Composition.
II.—Bismuth, 5.5 parts; lead, 3; tin, 1.5.
III. Alloy d’Homburg.—Bismuth, {66} 3 parts; lead, 3; tin, 3. This alloy is fusible at 251° F., and is of a silvery white. It is employed for reproductions of medals.
IV. Alloy Valentine Rose.—Bismuth, 4 to 6 parts; lead, 2 parts; tin, 2 to 3 parts. This alloy fuses at 212° to 250° F.
V. Alloy Rose père.—Bismuth, 2 parts; lead, 2; tin, 2. This alloy fuses at 199° F.
The remainder are plastic alloys for reproducing cuts, medals, coins, etc.:
VI.—Bismuth, 4 parts; lead, 2 parts; tin, 1 part.
VII.—Bismuth, 3 parts; lead, 3 parts; tin, 2 parts.
VIII.—Bismuth, 4 parts; lead, 2 parts; tin, 2 parts.