Shellac or shell-lac is a natural resinous substance derived from the excretion of the tiny lac beetle (Laccifer lacca) found in Southeast Asia and India. It is obtained by scraping the secretions from the trees where the insects reside. Shellac has been used for centuries as a versatile varnish, adhesive, and coating material due to its unique properties.
In its raw form, shellac is a yellowish-brown, brittle material that can be easily dissolved in alcohol to form a solution known as liquid shellac. This solution has been widely utilized as a wood finish, providing a glossy and protective coating when applied and dried. Shellac is also coveted for its ability to enhance the natural appearance of wood grain, highlighting its beauty.
Apart from its applications in woodworking, shellac is commonly used in various industries. It serves as an ingredient in traditional furniture polishes, sealants, printing inks, and even in the manufacturing of phonograph records. Additionally, shellac is extensively employed in the food and pharmaceutical industries as a glazing agent for candies, pills, and other confectionery or medicinal products.
Shellac is highly regarded for its eco-friendly and non-toxic nature, making it a preferable alternative to synthetic coatings. It is biodegradable, making it environment-friendly, and it has a long shelf life. Due to its versatility, durability, and resistance to heat, water, and mild chemicals, shellac remains a valuable substance in various crafts and industries.
