of the block polymers 41 constituting the polymeric coating 39 acts as a shield in protecting the metallic outer surface 40 from such abrasions in order to enhance the abrasion resistance of the block polymer each of the aforementioned polymer chains may be advantageously fluorinated such that a u201c teflon u201d like counterpart of the polymer is created a silver surface was prepared by sputtering a layer of silver onto a glass microscope slide the silver surface was spin coated with a 5 solution of the reaction product of pentaerythritol triacrylate and ethyl mercaptan 1 1 molar equivalents in methyl isobutyl ketone containing 0 5 michler 39 s ketone as a photosensitizer when dry the coated slide was exposed to 120 units of radiation from a nu arc high pressure quartz halogen lamp to effectively polymerize the acrylate groups when cured a drop of water was placed on the surface which showed a very high contact angle when the microscope slide with the drop of water was tipped on its side the water drop ran off cleanly without wetting the surface example 1 was repeated but the metal used was a mixture of palladium and platinum the polymer used was vinyl terminated polydimethysiloxane obtained from the aldrich chemical company no radiation cure was needed when the spin coating solvent had dried the.