lakiperusta

Lakiperusta is a Finnish term used to describe a lacquer base coat or primer in finishing systems. It serves as the foundational layer on which lacquer topcoats are built, aiming to improve adhesion, seal the surface, and provide a smooth, uniform base for subsequent coats.

Commonly, lakiperusta is applied to materials such as wood, metal, or certain plastics. It can be formulated as water-based or solvent-based, and in some cases tinted to help balance undertones or reduce color showing through from underlying materials. Key properties include enhanced adhesion between the substrate and the topcoat, sealing of porous substrates, partial filling of minor irregularities, and improved leveling of the finish.

Preparation and application follow standard finishing practices. Surfaces are typically cleaned, degreased, and sanded to create a good mechanical key. The lakiperusta is then applied in one or more coats, with light sanding between coats as needed for a smooth result. Drying and curing times vary by formulation and environmental conditions, and some systems may be compatible with UV, infrared, or bake-assisted curing.

Lakiperusta is used across various industries, including furniture making, cabinetry, automotive refinishing, and musical instrument construction, wherever a reliable, adhesive base is required for lacquer finishes. It is generally selected to be compatible with the chosen lacquer topcoat, and to fit the desired final appearance and performance characteristics.

See also: lacquer, primer, undercoat, base coat.