Profile: Penn Plastics, Inc. provides plastic injection molding services. We offer plastic boxes, pulley and optical products. We render custom manufacturing, contract molding, injection molding, insert molding and moldmaking services. We work with materials such as polymer, resin, thermoplastics, polypropylene, polyethylene, ABS, nylon, polycarbonate and penn plastics. We serve the aerospace, automotive, consumer, industrial and medical industries. Our Everlast® Pulleys feature a spoked wheel of impact resistant copolymer and a deep groove helps retain line.