With Nordson Xaloy PC Molding System, injection molders of optical-grade polycarbonate, acrylic, and similar polymers can produce high-clarity parts. System delivers homogenous melt with minimum level of shear that can cause yellowness or discoloration. It also avoids polymer sticking points or dead spots where blemishes such as black specks can form. System comprises Pulsar® II mixing screw, barrel with X-800® inlay, valve for free-flowing melt delivery, and nickel-plated end cap.