Definition
A finish material made by dissolving an acrylic resin in a solvent. When sprayed onto a surface, the solvent evaporates and leaves behind a hard, glossy, weather-resistant film. Acrylic lacquer is used as a topcoat on aircraft because it dries quickly, retains its colour, and resists ultraviolet light, fuel, and weather exposure.
Plain English
A type of fast-drying paint, often used on aircraft, that hardens as the liquid part evaporates and leaves a tough, shiny coating behind.
Context Anchor
Seen in aircraft maintenance and refinishing work, especially when discussing paint, surface protection, and finish materials.
Derivation
Acrylic comes from the Latin acer (sharp or pungent) — early acrylic compounds had a sharp odour. Lacquer comes from the Portuguese lacca, a resin originally used to make varnish in Asia. Together the term means a varnish-like finish made from acrylic resin.
Why Pilots Care
Creates a smooth aerodynamic surface that reduces drag while protecting against corrosion and weather damage.
Intuition Check
Do not assume acrylic lacquer means any glossy aircraft paint. It specifically refers to a lacquer-type finish made with acrylic resin and dried mainly by solvent evaporation.
Example Sentence 1
After the repair was completed, the technician sprayed acrylic lacquer over the patch to match the surrounding finish.
Example Sentence 2
Acrylic lacquer allowed the aircraft to return to service the same day after the paint job.