Which paint defect is associated with contamination on the surface, appearing as small craters?

Which paint defect is associated with contamination on the surface, appearing as small craters?

• A. Orange peel
• B. Runs
• C. Fisheye
• D. Overspray

Answer: (C)

This defect is fisheye. It happens when something on the surface—like oil, wax, silicone, or moisture—prevents the paint from wetting the area around the contaminant, so the coating pulls away and forms small crater-like openings. The result looks like little craters or “fish eyes” in the film.

This is distinct from orange peel, which is a bumpy, orange-skin texture caused by film formation issues or spray parameters; runs, which are sagging or dripping of too-thick film; and overspray, which is unwanted coating on adjacent surfaces. To prevent fisheye, ensure the surface is thoroughly cleaned with a compatible degreaser, wipe with tack cloth, avoid silicone-containing products, and control temperature and humidity during painting.