Glass fibers are the most frequently used reinforcing fibers in reinforced polymers. Glass filled nylon and other polyamides offer good mechanical, chemical and dielectric properties, and are also low in price. The mechanical characteristics which are predominantly improved by these fibers are tensile and compressive strength. In addition, thermal dimensional stability also increases. However, for sliding friction applications, glass filled nylon should usually be avoided, as the glass fibers tend to exert a highly abrasive effect and can quickly cause the mating component to wear.