WR® 300 is a carbon-fiber reinforced compression molded PEEK™ often selected by pump manufacturers and users for pump bushings and case or impeller wear rings. Maximum service life is achieved in clean. lubricated and/or moist environments. WR 300 allows the pump user to increase pump effiency by running tighter wear ring clearances while decreasing potential pump damage when pumps are cavitated or experience radial bearing failures.

WR ® 525 is a thermoplastic composite consisting of carbon fiber in a PEEK matrix. Because of its unique thermal expansion properties, WR ® 525 is ideal for use as impeller wear rings, bushings and case wear rings. WR ® 525 allows the pump user to increase pump efficiency by running tighter wear ring clearances, while decreasing potential pump damage when pumps are cavitated or experience down-line bearing failures. WR ® 525 is API 610 approved for (stationary/stationary and rotating) wear applications.