Tag Archives: cas 9000-59-3

Shellac Flakes

Shellac is a kind of non-toxic natural gum resin dissolves in a wide variety of alkaline or rapidly drying alcoholic solvents but is resistant to a number of other solvents particularly hydrocarbons. The low thermal conductivity and a small coefficient of expansion cause shellac to lead to a powerful bonding material. Our Machine made shellac products are produced in heat process by machine. Under heat process the separation of pure lac is achieved by melting. The molten lac is then stretched by means of rollers into long continuous sheet.


The seedlac was crushed and washed frequently to remove the bug bodies and a portion of the coloring matter. After drying the washed sticklac, we get the commercial variety of seedlac. It contains around 3~5% impurity.