Shellac is a natural resin refined from Lac, the secretion of the tiny red Lac insect, Kerria lacca, which is parasitic on certain host trees in India. Wax-Containing Shellac is refined from Seedlac using the Heat Melting process, which does not remove the naturally occurring wax contained in the Lac. It is usually machine-made and is extracted from the Seedlac by melting it using steam heat and then squeezing the molten Lac through a fine metal filter using hydraulic presses. The molten Lac is then stretched by stainless steel rollers into a long thin film before being broken into flakes once cooled.
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