Aqueous two-component or multicomponent aqueous epoxy resin primer composition

摘要

The invention relates to two-component or multicomponent aqueous epoxy resin primer compositions comprising a first component, a second component, and an optional other component. The first component contains at least water and an epoxy resin while the second component contains at least one polyamine. The composition also comprises carbon black and/or epoxy silane and/or epoxy siloxane and/or an amino silane and/or an amino siloxane and/or mercaptosilane. The aqueous epoxy resin primer compositions improve adhesion of moisture-curing polyurethane adhesives or sealants on various bases.