Powder coating system for coating an in particular metallic substrate, method for applying such a powder coating system to an in particular metallic substrate and substrate, in particular metallic substrate which is coated with such a powder coating system and / or to which a powder coating system is applied with such a method

摘要

The invention relates to a powder coating system (12) for coating an in particular metallic substrate (10), comprising a first powder coating layer (14), which is formed as a primer (18) based on an epoxy resin (20) and with a first hardener (22) or is formed as a primer composition (30), the primer composition (30) being a catalyzed carboxyl-functional polyester resin (32) and an epoxy resin (34) in the ratio of 80:20 wt.% to 45:55 wt.% comprises or consists of these, and - a second powder coating layer (16) applied to the first powder coating layer (14), which is designed as a top coating composition (24), the top coating composition (24) carboxyl-functional polyester resin (26) and a second hardener (28) based on ß-hydroxyalkylamide in a ratio of 98: 2 wt .-% to 92: 8 wt .-% or consists thereof. The present invention further relates to a substrate which mi t is coated with such a powder coating system and / or to which a powder coating system is applied using such a method.