relacquering

Relacquering is the process of applying one or more new coats of lacquer to a surface that has already been finished with lacquer. It is commonly used on wooden furniture, musical instruments, decorative panels, and lacquerware to restore gloss, evenness, and protection after wear, scratches, or aging.

Before relacquering, an assessment of the existing finish is essential. Determine whether the current layer is intact and compatible with new coats, or if peeling, cracking, or contamination (such as wax or silicone) requires stripping and refinishing. Surfaces should be cleaned and, if necessary, scuffed or sanded to create a good key for the new lacquer. Avoid overcoating over residues that can prevent adhesion.

Application typically involves selecting a lacquer compatible with the existing finish (such as nitrocellulose, acrylic, or polyurethane-based lacquers) and applying multiple thin coats. Coats can be applied by spray, brush, or wipe-on methods, with light sanding between coats to remove dust and improve adhesion. Drying and curing times should follow manufacturer guidelines to prevent runs, sags, or clouding. A typical relacquer involves 2–4 coats, with final polishing or buffing after full cure if a higher gloss is desired.

Relacquering carries risks, including poor adhesion, discoloration, or clouding if the finish is incompatible or improperly prepared. When the existing finish is severely damaged or incompatible, full refinishing or restoration may be a more appropriate option. Proper ventilation and personal protective equipment are recommended throughout the process.