What is an adhesion promoter?
An adhesion promoter is used as an additive or as a primer to promote adhesion of coatings, inks, or adhesives to the substrate of interest. An adhesion promoter usually has an affinity for the substrate and the applied coating, ink, or adhesive. Without the adhesion promoter, the properties of the applied coating may not be sufficient to meet the performance requirements needed for the end product such as a painted automotive plastic surface. In automotive coatings, the term adhesion promoter refers to the primer, which achieves adhesion of the subsequent paint layer to TPO substrate. This adhesion promoter is usually comprised of chlorinated polyolefin (CPO) as the active adhesion-promoting component, other resins, and pigment.
Related Questions
- Is there a universal adhesion promoter that is good for a variety of plastics such as polyethylene, polypropylene, thermoplastic polyolefin, ABS, nylon, PVC, and other plastic polymers?
- To obtain adhesion for one-step coatings for polyolefin plastics, can the adhesion promoter be simply postadded to the existing coating formula?
- What is a common adhesion promoter for automotive plastics?
