CHECKİNG
Description: Fine cracks which do not penetrate the topcoat of a paint system. Some checking can be sominute that it is impossible to see without magnification.
Probable Causes: Typically a formulation and/or a specification problem. As with cracking,stresses are developed which cause the surface of the paint film to become brittle and crack. Limited paint flexibility.
Prevention: Use a correctly formulated coating system.
Repair: Abrate and clean surface then apply an undercoat/topcoat to suit.