ASTM D784-99 PDF

1.1 This specification covers the requirements and methods of test for three types and four grades of orange shellac and other lacs, typically used as bonding agents for mica splittings and reconstituted mica paper and as coating for other materials, as follows:

1.1.1 Type I -Orange Flake Shellac, Grades A, B, C, and D,

1.1.2 Type II -Button Lac, and

1.1.3 Type III -Garnet Lac.

1.2 Stick-lac and seed-lac are not covered by this specification.