The Poly Split (PS) CEMA rotary shaft seal by CinchSeal is maintenance-free and designed to seal screw conveyors as well as mixing and blending equipment. It is manufactured from polypropylene and stainless steel to handle dry powders and slurries in the food, pharmaceutical, and chemical industries where stainless steel is required. Poly Split seals can be rebuilt with inexpensive repair kits and are designed to handle ¼” total radial shaft runout.