Perform chemical and physical analysis on samples (processing and non-processing batches) using established procedures, to include but not limited to viscosity, thixotropic index, gel, interval, peak, appearance, color, acid number, monomer percent, water percent, and barcol development. ALTA Performance Materials is the global leader in a broad range of general-purpose and high-performance grades of unsaturated polyester and vinyl ester resins, gelcoats and low-profile additives for the plastics industry.