Sr. Technical Manager
Bob is a Sr. Technical Manager with Evonik Corporation’s Coatings Additives Business Line. He has twelve years of coatings experience in both polymers and industrial coatings with DeSoto, Inc. and Valspar Corporation. He has worked on the application of silica and carbon black in coatings for over twenty years. He received his B.S. in Chemistry from University of Illinois.
Powder coatings have continued to broaden their application to protect a greater range of substrates. With this expansion, more chemistries are being developed for differing substrate compositions. These include lower-temperature cure to address heat-sensitive substrates and/or lower energy consumption to reduce cost. These applications also require aesthetics that require consistent matte finishes. Although there are several additives technologies being employed, the stringent need for greater uniformity in the final coating is still a challenge.
In this study, the presentation reviews the range of available additive technologies that are currently being employed for matting powder coatings, then introduces a novel synthetic silica technology and examines its impact on matting in powder coatings. The study will look at how this influences processing of powder, usage of the novel synthetic silica, main effects on matting and other performance characteristics of the final powder coating. The results will provide a comparable overview of how the new novel synthetic silica performs versus current available technologies.