Biofuel Compatibility of Sealing Materials at Low Temperatures

Abstract

The combination of very good biofuel compatibility with excellent low-temperature properties is of major importance to the automotive industry. Changes in the regulatory framework and the tapping of new markets have increasingly led to new developments in this field. Parker has developed FKM compounds with TR10 values of −30°C, −35°C, −40°C and −45°C, which display only slight changes in physical properties upon storage in FAM B, E85 and KGS (VW first fill fuel). The sealing performance of these compounds at very low temperatures was investigated in compression set tests from −25°C down to −50°C.