Reducing the cure temperature and time of a coating system has been an on-going issue for the automotive industry. This initiative is due to many factors including, but not limited to, meeting sustainability targets, energy cost reductions, and the ability to coat and cure plastic and metal parts at the same time. There have been limiting factors in the various coating layers that have caused issues in moving forward to the goal of an 800C temperature.
In this presentation we will review several resins that are new to the market that can help to aid in meeting these lower temperature goals. These resins represent both solventborne and waterborne technologies. A unique hyper-branched polyester polyol has shown the ability to reduce the cure temperature and/or cure time in a solventborne topcoat system. Testing shows this resin used as a co-binder in an acrylic polyol system can reduce the cure temperature by 10-15%. There are several options available for waterborne systems including self-crosslinking acrylics and a new self-crosslinking polyurethane dispersion (PUD). Use of these resins, either on their own or in combination, in basecoat systems have shown good adhesion over plastics and metal and desirable final film properties at these low cure temperatures.
Tony Neely is a Technical Specialist at BASF responsible for waterborne coatings in the Transportation, Industrial, Furniture and Flooring (TIF) business. His previous roles include Research Scientist at BASF as well as experience in organic/polymer synthesis as well as epoxy, urethane, and UV curable coatings and composites. Tony holds a BA in Chemistry from Furman University and a Ph.D. from the University of South Carolina, where his research was in the field of surface modification, nanocomposites, and controlled radical polymerization.
Susana Porzio is a Technical Specialist at BASF responsible for the solventborne and solvent free resins for industrial coatings. Her previous experience includes roles as chemist in the architectural coatings segment and as a research scientist and formulator for the automotive brake industry.
Susana earned her MS in Chemistry from the University of North Carolina at Charlotte and her B.S. in Chemical Engineering from the National Polytechnic Institute in Mexico City.