Two technical papers focus on the use of Poly bd resins in adhesives and electrical applications, respectively. The Poly bd resins from Sartomer Co. (Exton, PA; 610/594-7360) provide formulation flexibility, extremely high water repellency, good low- and high-temperature properties, and excellent adhesion to all substrates. Each technical paper is written for composite formulators, featuring in-depth technical data and useful findings that they can immediately apply to improve both processes and products. Illustrative tables and figures make it easy to scan for key information.