In celebration of our 155th year manufacturing shellac, we have revised this booklet, which was first published in 1913 and reprinted seventeen times throughout the years.

278 Technologic Papers of the Bureau of Standards. [Vol. 17 A brief summary is given in this paper of the source, preparation, and uses of shellac, together with a description of certain methods which …

Methods Preparation of the Raw Material Ground shellac was prepared by milling shellac flakes in sieving through a 400-μm mesh sieve. Ground shellac was used for the preparation of shellac …

have no idea of what shellac is or where it comes from. Shellac is a natural, organic resin that comes from an insect, Laccifera lacca that is about the size of an apple seed. This bug alights on certain …

66 Shellac is hard, tough, amorphous resin that has good water resistance and produces high lustrous finishes.

Shellac is a resin secreted by the female lac bug. It is processed for both industrial and food uses in four grades; orange, dewaxed orange, regular bleached and refined wax-free bleached. Commercial …

Shellac is the refined, hardened, resinous secretion of the lac insect known as Laccifer Lacca (Kerr). It has the distinction of being the only commercial resin of animal origin, thus being a true natural resin.