Preferred Rubber offers Custom Rubber technical support through four degreed chemists on staff. These experienced rubber compounders have a combined total of 117 years of experience in several key rubber industry segments: power transmission, electrical applications, automotive sealing, and potable water applications. They have five compounds certified by Underwriters Laboratory as meeting the specifications of the National Sanitation Foundation's Standard 61 for Drinking Water System Components. A further resource is Preferred's partnership with Gummiwerk KRAIBURG, a leading German custom mixer, that gives Preferred access to over 3,000 cost-effective recipes, as well as compounding advice for complex applications.