Advance is molded out of high-quality glass-filled Noryl® , which gives it many advantages. It has good resistance to most acids, alkalis and inorganics. Noryl® has excellent tensile strength, very low water absorption, and a continuous temperature rating of 90°C. We also offer the Advance line in polypropylene. The design of the pump, coupled with the chosen resins, produces a strong, durable, versatile unit. When used with the patented Impenatra® seal, the fluid pumped does not contact any metal parts. This allows it to properly handle many applications at a fraction of the cost of exotic alloys. Engineered for high efficiency, Advance impellers are available as semi-open or enclosed to accommodate a wide variety of flows, pressures and fluids.