Parker's Centralizers are used in Measure While Drilling (MWD) tools. Parker offers all major elastomeric materials. If a custom compound is required our experienced materials group will develop a compound to meet customer needs. Rubber and metal reinforced rubber Centralizers are available for a variety of MWD systems. Metal reinforced Centralizers require the rubber component and metal to be bonded together. Parker's material group will evaluate bond strength between elastomer and metal for each part. All Centralizers Parker Engineered Seals Division manufactures are custom manufactured, Parker has the capability to design rubber Centralizers to meet exact tool requirements.