Nylon (PA) is a versatile resin that is tough, strong, and stiff. It resists fatigue and repeated impact. There are several types of Nylon polymers, PA6, PA66, PA610 PA 612, PA10 and PA 12 which are all tough and chemically resistant. PA10 and PA12 grades have a lower moisture absorption, are softer and more flexible than PA6 and PA66 grades. Nylons can be glass reinforced for improved heat stability, stiffness and mechanical resistance. Nylons have excellent abrasion resistance and UV stabilizers can be added to prolong the life of molded parts used outdoors.