Button Shellac

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Seedlac are filled into long sausage-shaped cloth bags about 2″ diameter and 30′ long. This long bag is passed gradually in front of a charcoal fired hearth hot enough to melt the lac and by twisting the bag the molten lac is squeezed out through the cloth and stretched with the help of a glazed ceramic cylinder.

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Specification of Machinemade  Button Shellac

Acid Value 65-76
Ester Value 110-175
Saponification Value 175-240
Wax Content 5.50% max.
Moisture 2% max.
Rosin Content Nil
Orpiment Nil
Arsenic 1.5 PPM max.
Heavy Metals as Pb 10 PPM max.
Insolubility in Hot Alcohol 0.75%-1.00%
Flake Structure Thin
Weight N/A
Quantity

1Kg, 5Kg, 10Kg

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