New Technology Plastics stocks a wide selection of reinforced high-performance plastics in sheet, rod, and tube. The property profile of a plastic can be selectively altered by introducing additives or fillers to achieve specific characteristics. The resulting plastic compounds allow for different (usually increased) thermal, mechanical, electrical, optical, or other characteristics beyond what is typically seen in the unmodified base polymer. The most common fillers and additives, besides colorants, are reinforcement fibers, stabilizers, and friction reducing additives.