(extended definition) Paint defect due to the incorporation of air bubbles into applied coating films during the application process and holding air bubbles inside the film due to a sufficiently high film viscosity. Air entrapment can be suppressed by introduction of substrate wetting agents or by the reduction of application viscosity.
The inclusion of air bubbles in liquid paint or a paint film.
Occlusion of air in a resin or resin glass system, giving rise to blisters, bubbles or voids in the system.
The capture of air bubbles in resinous coatings systems.