Natural-derived / Biomass Thermosetting Resin 'Shellac' (Koyo Chemical product)
Shellac is a natural resin obtained by refining a resinous substance secreted by insects (lac scale insects). It is used in industry, pharmaceuticals, and food.
Shellac is obtained by extracting and refining the raw material "seedlac" through methods such as heat melting, alkaline extraction, and solvent extraction. We offer a variety of products, primarily focusing on "refined shellac," which is highly purified through solvent extraction, and "white shellac," which is bleached during the alkaline extraction process. 【Features】 ■ It is a thermosetting resin unlike any other natural resin. ■ It can be easily thermally melted (also possesses thermoplastic properties). ■ It readily dissolves in alcohol at room temperature and does not dissolve in other organic solvents. ■ It produces a smooth, glossy film with excellent adhesion and abrasion resistance. ■ Once thermoset, it becomes a tough film that is resistant to heat and solvents. ■ It can be easily dissolved in water. ■ It has excellent oil resistance. ■ It is an electrical insulator. ■ There are formulations that dissolve food additive grade products in ethanol. 【Applications】 Paints, insulating varnishes, electrical insulating adhesives (mica, coils, transformers), release agents (adhesive tape, masking tape, protective paper for synthetic resin sheets), adhesives, printing inks, tablet coatings (enteric), protective coatings for fruits, glossing (chocolate, citrus fruits). *For more details, please refer to the PDF materials or feel free to contact us.
basic information
**Basic Properties of Shellac** ■ Specific Gravity: 1.143–1.207 ■ Specific Heat: 10–40℃ 0.35–0.38 45–50℃ 0.42–0.56 ■ Softening Point: 65–80℃ (Ball Ring Method) ■ Thermal Curing: Heating at 170℃ for 1 to 7 minutes results in insoluble and infusible material. (Transparent shellac and bleached shellac at 150℃ for 30 seconds to 5 minutes) *For more details, please refer to the PDF document or feel free to contact us.*
Price range
Delivery Time
Model number/Brand name
Koyo Chemical Company
Applications/Examples of results
【Main Uses】 ■ Paint: Alcohol varnish (woodworking primer) ■ Electrical insulation materials: Insulating varnish, electrical insulation adhesive (mica, vacuum tubes, coils, transformers) ■ Paper: Release agents (adhesive tape, masking tape, protective paper for synthetic resin boards) ■ Adhesives: Fixing during cutting and polishing of lenses, gemstones, etc. ■ Printing: Printing inks ■ Pharmaceuticals: Tablet coating (enteric-coated) ■ Food: Protection and glossing of confections and fruits (chocolate, citrus fruits) ■ Cosmetics: Hair lacquer, nail polish *For more details, please refer to the PDF document or feel free to contact us.
