Abstract: A method of masking and pretreating a plastic part prior to being spray-painted including the steps of providing a plastic part having one or more adhesive bond lines. The plastic part is typically an exterior automotive component having a painted show surface. Examples of plastic parts include but are not limited to lift gates, running boards, door trim pieces, spoilers, tail gates, front fascias and rear fascias. The method can also be used in connection with metal parts or any other application where a surface of the part will be painted and other surfaces on the part need to be protected from direct paint spray or paint overspray.

Abstract: A method of masking and pretreating a plastic part prior to being spray-painted including the steps of providing a plastic part having one or more adhesive bond lines (12, 12?). The plastic part is typically an exterior automotive component having a painted show surface. Examples of plastic parts include but are not limited to lift gates, running boards, door trim pieces, spoilers, tail gates, front fascias and rear fascias. The method can also be used in connection with metal parts or any other application where a surface of the part will be painted and other surfaces on the part need to be protected from direct paint spray or paint overspray.

Abstract: A primer containing graphene as an additive and a method of priming a filled polymer substrate for providing a Class A final paint surface. The method includes providing a substrate with reinforcement materials. A primer which includes from 0.5-5% by weight of graphene as an additive is applied to the substrate for coating the substrate. The primer is cured during heating of the resulting product for drying the substrate. The graphene acts to dissipate heat providing less differential of heat between the primer and the substrate and/or coatings applied on top of the primer which produces an improved final appearance of a paint over a fiber reinforced polymer material.