Coating composition with easy-clean performance

A coating composition, comprising:

• (a) 0.1 to 10 wt. % of a hydroxyl-functional polyester containing a perfluoropolyether block, wherein the hydroxyl-functional polyester is prepared by a method comprising the following steps:
• (a) subjecting a carboxyl-terminated perfluoropolyether C to a reaction with an epoxy-functional compound D, wherein the epoxy-functional compound D is a glycidyl ether or glycidyl ester, and
• (b) subjecting the reaction product of step (a) to a reaction with a lactone E,
• (b) an OH-functional or epoxy-functional resin, and
• (c) a hardener comprising groups reactive to the OH or epoxy-functional groups of resin (b).