SKTN Shellac

SKTN Shellac is a high-quality machine-made shellac produced using the heat process, where Seedlac is melted using steam heat and purified via hydraulic filtration. The molten shellac is then rolled into sheets and broken into flakes or pieces. Known for its reliable consistency, relatively low impurity levels, and moderate color tone, SKTN Shellac is well-suited for a wide range of industrial and commercial applications. It strikes a balance between purity and performance, making it one of the most popular choices among lac-consuming nations. The SKTN grade offers flexibility in formulation and meets essential international quality norms, making it a dependable resin for surface coatings, food, and pharmaceutical uses.

Specifications 

Property Specification
Matter Insoluble in Hot Alcohol Basic Limit: 0.75% Relaxed Limit: 1.00%
Color Index (Gardner Scale) Max. 12
Rosin and Orpiment Normally free unless otherwise agreed
Volatile Matter ≤ 2%
Wax Content ≤ 4.5%
Ash Content ≤ 0.3%
Matter Soluble in Water ≤ 0.5%
Flow As per agreement between buyer & seller
Heat Polymerization Typically agreed at 150°C
Acid Value As agreed between buyer & seller
Lead Content As agreed between buyer & seller
Iodine Value As agreed between buyer & seller

Key Features

  • Moderate Color Clarity: With a color index up to 12, SKTN has a warm golden-amber hue, suitable for general-purpose applications.

  • Good Purity Levels: Maintains a balanced impurity range, ensuring effectiveness in industrial and food-safe formulations.

  • Stable Heat Resistance: Withstands typical processing temperatures up to 150°C.

  • Enhanced Film Properties: Offers good gloss, film-forming ability, and adhesion to diverse substrates.

  • Customizable Parameters: Some chemical parameters like acid value and iodine value are adaptable per buyer specifications.

Applications

Food Industry

  • Edible coating for fruits (apples, citrus), confectionery, and chocolates.

  • Moisture barrier in chewing gum and bakery items.

Pharmaceuticals

  • Tablet and capsule coating for controlled release and gloss.

  • Used in enteric formulations due to its resistance to gastric fluids.

Wood & Surface Coatings

  • Protective finishes for furniture, musical instruments, and handicrafts.

  • Base coat in traditional French polishing techniques.

Printing Inks & Varnishes

  • Binder in specialized inks for eggs, cheese, and food packaging.

  • Component in eco-friendly varnishes and lacquers.

Cosmetics

  • Binding and film-forming agent in mascara, nail polish, and hair sprays.

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