As with all art forms, encaustic paintings should not be exposed to direct sunlight or extreme temperatures – they do best in temperatures between 40–125° Fahrenheit ( 5–52° Celsius ).The surface of a painting can get scratched, dented or chipped, and the edges of encaustic paintings are especially vulnerable to chipping.Encaustic paintings can be buffed to a high gloss using a soft, lint free cloth. This sheen dulls over time and can be brought back by repeating the process.
An encaustic painting may develop a naturally occurring hazy white residue during the first six to twelve months as the wax cures. It may also occur if a painting is exposed to cold.This can easily be removed by wiping the surface of the painting with a soft cloth or if the painting is more textured, the use of a hair dryer will remove it. Buffing or use of a hair dryer can be repeated as necessary. Occasional dusting and buffing of the surface of an encaustic painting with a soft cloth will help maintain the unique patina of the wax.