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COATING CAPABILITIES Black Oxide Steel & Stainless Steel Coatings Zinc Phosphate Coatings Nickel Platings Tin & Alloy Platings Gold Platings

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		Black Oxide Steel & Stainless Steel Coatings Black Oxide on wrought iron, cast/malleable iron, low carbon alloy STEEL. 300-Series, 400-Series, and 17-4 PH STAINLESS STEELS. Black oxide is a conversion coating formed by the chemical reaction with the iron in a metal to form an protective surface. Oxidizing salts react with the iron to form magnetite (Fe304), the black oxide of iron. It must be impregnated with oil or wax. Advantages: No buildup. Mild corrosion resistance Improved appearance A uniform black coating for ferrous metals that is used primarily as a decorative finish; only limited corrosion protection under mild corrosive conditions. Black Oxide coatings should be given a supplementary treatment; (ie. ...




		Zinc Phosphate Coatings Zinc Phosphate for medium and low alloy, cold- & hot-rolled STEELS. Zinc Phosphate is a corrosion resistant coating for metal surfaces. A seeding agent such as sodium pyrophospahte is used as a pre-treatment to create a crystalline structure. Provides a grey-black coating for medium- and low-alloy steels. Supplemental coatings are added to impart moderate to medium corrosion protection.




		Nickel Platings Nickel Plating for coating any metallic substrate material. BRIGHT NICKEL & SULFAMATE NICKEL Nickel appearance can range from color of stainless steel to white, dull or bright; hardness range 150-500 Vickers. Corrosion resistance is a function of coating thickness. Has low coefficient of thermal expansion; is magnetic. DEPOSIT THICKNESS CLASS 1: for corrosion protection Grade A 0.0016" minimum thickness Grade B 0.0012" minimum thickness Grade C 0.0010" minimum thickness Grade D 0.0008" minimum thickness Grade E 0.0006" minimum thickness Grade F 0.0004" minimum thickness Grade G 0.0002" minimum thickness CLASS 2: for ...




		Tin & Alloy Platings Tin & Alloy Plating for coating any metallic substrate material BRIGHT ACID TIN Tin and its alloys are light grey-white deposits ranging from dull to bright appearance. Soft, ductile, and good corrosion resistance; offers excellent solderability. Tin should not be used in low temperature applications; its grain structure changes, and loses adhesion at -40°C. Type I electrodeposited (plated) coatings of tin Type II hot dipped tin .0001-.00025 for solderability .0002-.0004" prevent galling & seizing .0003" minimum for corrosion protection .0002-0006" prevent forming case during nitriding TIN-LEAD ...




		Gold Platings Gold Plating for coating any metallic substrate material Gold is yellow to orange in color depending on process used; ranges from matte to bright. Excellent corrosion- & tarnish resistance; an excellent electrical conductor. Good solderability at thickness below 20 microinches. Hardness of hard gold ranges from 130 to 200 +Knoop, at which gold has good contact lubricity. PURITY OF DEPOSIT 99.7% gold minimum (Grades A, B, or C) 99.0% gold minimum (Grades B, C, or D) 99.9% gold minimum (Grade A only) DEPOSIT HARDNESS Grade A 90 Knoop hardness (maximum) Grade B 91-129 Knoop hardness Grade C 130-200 Knoop hardness Grade ...