The polymer properties give nylon(PA) brushes superior abrasion resistance, high heat tolerance, great chemical resistance and bend recovery. Nylon(PA) is one of the most commonly used polymers in brushes. The stiffness of a nylon(PA) brush is directly related to bristle diameter, length and grade. Nylon(PA), depending on the grade, is more costly than lower grade polymers; however, the advantages justify the higher price. Some of the many advantages of nylon(PA) include low to moderate water absorption, an excellent fatigue life and the ability to work in both dry and wet environments. For industries such as semiconductor, aerospace, medical, food processing, automotive, commercial, industrial, textiles and electronics, nylon(PA) brushes are vital components in many processes due to extensive application-specific configurations. There are also a variety of colors of nylon(PA) filament, which is available in its natural milky clear color, or in dyed colors such as black or yellow.