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Superior Kusmi Buttonlac is a high-grade, hand-made shellac crafted through the traditional Indian process that preserves the natural purity and quality of lac resin. Produced from select seedlac, this grade is formed by heating lac in a cloth bag over a charcoal fire and pressing the molten lac through the fabric. The lac is then skillfully molded into button shapes or thin flakes. This artisanal technique, passed down through generations, ensures superior product integrity with a high gloss, stable flow characteristics, and an attractive appearance.
The “Kusmi” type is derived from seedlac harvested in Kusmi regions, known for its light color and finer quality. With a low percentage of insoluble matter and no added rosin or orpiment, Superior Kusmi Buttonlac is used extensively in applications that demand high purity, excellent film-forming capacity, and natural origin. It is particularly valued in food coatings, pharmaceutical glazes, wood finishes, cosmetics, and electronics.
| Parameter | Specification |
|---|---|
| Matter Insoluble in Hot Alcohol | Basic Limit: 0.75% / Relaxed Limit: 1.0% |
| Colour Index (Max) | 6 |
| Volatile Matter | = 2% |
| Rosin & Orpiment | Free |
| Matter Soluble in Water | = 0.5% |
| Ash Content | = 0.5% |
| Wax Content | = 5.5% |
| Flow | As agreed between buyer & seller |
| Heat Polymerization | As agreed (typically at 150?C) |
| Acid Value | As agreed |
| Lead Content | As agreed |
| Iodine Value | As agreed |
Hand-Made Excellence: Produced using a time-tested manual process for exceptional purity and appearance.
Natural & Non-Toxic: 100% natural resin with no artificial additives; safe for use in food and pharmaceuticals.
Superior Film-Forming Properties: Produces clear, hard, glossy coatings with strong adhesion.
Free from Rosin & Orpiment: Ensures stability and safety in sensitive applications.
Customizable Parameters: Flow, heat polymerization, and acid value can be tailored upon buyer-seller agreement.
Low Insoluble Matter: Enhances clarity and smoothness in final applications.
? Food Industry
Confectionery glaze and coatings (chocolates, sweets)
Fruit coating (citrus, apples) for extended shelf life
Edible wax substitute
? Pharmaceuticals
Tablet coating for controlled release
Encapsulation of active ingredients
Enteric coatings
? Wood Finishing & Polishing
French polish and varnishes
Furniture and musical instruments finish
Traditional handicraft coatings
? Cosmetics
Nail polish and mascara binder
Lipstick film-forming agent
Hair styling formulations
? Electrical & Industrial
Insulating varnishes
Printing inks and dyes
Adhesive and sealing applications
