Dewaxed Bleached Shellac

Dewaxed Bleached Shellac
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Dewaxed bleached shellac is a refined, natural resin prized for its non-toxicity, clarity, and film-forming properties. Produced by dissolving seedlac in an alkaline solution, bleaching, and dewaxing, it is widely utilized in the pharmaceutical, food, cosmetic, and woodworking industries
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Here is a breakdown of its primary uses, production science, and specifications:
Key Applications:

  • Pharmaceuticals: Its moisture-resistant and non-toxic profile makes it an ideal binder for slow-release tablet and capsule coatings.
  • Food & Confectionery: Used as an edible surface coating for fruits (e.g., apples, citrus) and confections to enhance gloss, prevent blocking, and extend shelf life.
  • Woodworking: In furniture finishing, dewaxed shellac creates a clear, non-yellowing glossy topcoat that adheres well and brings out the natural wood grain.
  • Industrial & Cosmetics: Serves as an additive in hair sprays, nail lacquers, and a binder for specialty adhesives, electronics, and pyrotechnics.
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Specifications:
  • Color: Pale yellow to off-white, powder or granule form.
  • Wax Content: Maximum 0.20%.
  • Insolubility in Hot Alcohol: Maximum 0.10% to 0.20%.
  • Acid Value: 65 to 90.
  • Saponification Value: 200 to 260.
  • Melting Point: 75°C - 91°C (Capillary Method).
  • Moisture Content: Maximum 5.0% to 6.0%.
  • Ash Content: Maximum 0.50%.
  • Rosin Content: Nil.
  • Heavy Metals: Maximum 10 PPM (Arsenic Nil, Iron Nil)

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