Abstract: The invention relates to a mixture (a) of fatty acid triglycerides having a slip melting point above 500 C, the fatty acid composition of said mixture (a) comprising at least two different fatty acids and comprising from 20 to 95% by weight of saturated fatty acids and 80 to 5% by weight of unsaturated fatty acids, and wherein at least one fatty acid triglyceride (a1) from said mixture (a) bears the same saturated fatty acid residue on each position of the glycerol moiety and corresponds to at least 10% by weight of said mixture (a). This mixture is useful in the coating of medical devices to improve bio-compatibility, stability, and drug release.