The latest wear- and corrosion-resistant coating from Bales Metal Surface Solutions, Downers Grove, Ill., is Diamond EN, based on electroless nickel with nano-diamond particles. According to a presentation at the recent Molding 2015 Conference in Rosemont, ill., this coating offers greater corrosion resistance than Bales' Diamond Chrome coating, though the latter has superior abrasion resistance. Diamond EN is similar in abrasion resistance to standard hard chrome. Its hardness is 57 RC as plated and 70 RC after heat treatment.
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