Product name: Shellac

CAS No.: 9000-59-3

Product Description：
Shellac is a resin secreted by the female lac bug to form a cocoon, on trees in the forests of India and Thailand.It is processed and sold as dry flakes (pictured at right), which are dissolved in denatured alcohol to make liquid shellac, which is used as a brush-on colourant, food glaze and wood finish much like a combination of stain and polyurethane. Shellac functions as a tough all-natural primer, sanding sealer, tannin-blocker, odor-blocker, stain (pigment), and high-gloss varnish. Shellac was also once used in electrical applications as it possesses good insulation qualities and it seals out moisture. It is also often the only historically-appropriate finish for early 20th-century hardwood floors, and wooden wall and ceiling paneling
 
Application:
Shellac is edible and it is used as a glazing agent on pills (see excipients) and candies in the form of pharmaceutical glaze (alternatively, confectioner's glaze). It has the food additive E number E904.