Button-Lac is a traditional form of shellac derived from the secretion of the Kerria lacca insect. After a handcrafted refining process in India, it is pressed into the characteristic button-shaped discs. Available here in 100 g packs.
In lutherie, button-lac is used in traditional varnishes for its ability to provide warmth to the wood’s tone and a durable finish. Unlike fully refined shellac flakes, it retains part of its natural waxes, giving it a warmer, deeper appearance.
It is especially valued in the restoration of antique instruments and in the preparation of historical finishes, making it an essential material for luthiers seeking authenticity in their recipes.
Technical Specifications
Product type: Shellac in button form
Origin: India
Botanical: Secretion of Kerria lacca
Color: Amber brown
Uses in lutherie: Traditional varnishes, restoration, warm and resistant finishes