Last month, PolyOne Corp., Cleveland, introduced Geon SF, a family of rigid vinyl compounds utilizing patent-pending technology to expand PVC’s injection molding processing window while maintaining physical properties. They boast 25% greater spiral melt flow and 75% greater dynamic thermal stability, as well as reduced shear burning. The five initial grades are aimed at laundry appliance housings, decorative railing spindles, molded shake siding, and other large or thin-walled applications. In jobs where standard vinyl compounds exhibit marginal processing performance, Geon SF reportedly can reduce both scrap rates and cycle times.
The Need for Generalists: Part 3
In failure analysis, there is a tendency to gravitate to a few common test protocols. But this approach can result in a mismatch of techniques to the problem.