SFT Process Thickness Generics

Surface Finish Technologies, Inc.
215 Judson Street
Elmira, NY 14901
(607)732-2909

Protecting and improving surfaces for more than 25 years

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Process List

Process Material Compatibility

Process Material Thickness

Process	Specifications	Min	Max	Typical	Comments
Anodize	Mil-A-8625 Type II	0.0001”	0.0003”	0.0002”	Protective finish that builds into the aluminum surface as much as it builds up. Comes in a wide variety of colors. Needs a contact point.
	ASTM B580

Anodize, Hard	Mil-A-8625 Type III	0.0008”	0.002”	0.001”	Also referred to as Hard Coat, hard anodizing provides extremely protective finish. Extremely hard, and can be impregnated with teflon for greater lubricity.
	AMS 2469

Black Oxide	Mil-C-13924	n/a	n/a	NONE	Conversion coating that forms a protective oxide layer on the surface of the part with minimal dimensional change. Normally performed on steel, stainless steel, and copper. Normally an oil is applied to prevent red rust corrosion.
	AMS 2485


Cadmium	QQ-P-416	0.0002”	0.0005”	0.0003”	Provides excellent corrosion resistance and has the ability to be sealed with a chromate to enhance corrosion protection and give it color.
	AMS 2400
	ASTM B766
Process	Specifications	Min	Max	Typical	Comments
Chemical Conversion	Mil-C-5541	-0.0002"	n/a	-0.0001"	Chemical Conversion, also known as chem film, chromate, or irridite. Comes in two colors, clear and yellow. Also there is a trivalent option available for RoHS compliance. Gives aluminum affordable corrosion protection and works as an excellent base for paints and powder coatings.
	ASTM B449


Chrome	QQ-C-320	0.00001”	0.002”	VARIES	Chrome can either have a satin or a bright finish. Chrome offers extreme corrosion and wear protection. A flash (0.00001) is normally used for decorative finishes, while thicker coatings have more satin finish and is common in industrial use.



Copper	Mil-C-14550	0.0001”	0.002”	0.0003”	Copper provides an excellent underplating for nickel and chrome plating. It is commonly used to mask surfaces from convection hardening.
	AMS 2418
	ASTM B734
Process	Specifications	Min	Max	Typical	Comments
Electroless Nickel	Mil-C-26074	0.00005”	0.005”	0.0003”	Electroless nickel offers an extremely uniform plating over all regions of the parts. Can be either semi bright or bright. The dimension can be controlled better than most plating processes.
	ASTM B733
	AMS 2404

Electropolish		-0.0001"	-0.004"	-0.0005"	Electropolish is a way to electro-chemically remove material from the surface. Normally performed on stainless steel (300 & 400 series) and aluminum; electropolishing often leaves the surface bright, shiny, and free of scratches. As a result of the process, the surface of the substrate is extremely passivated; resulting in optimum corrosion resistance offered by the alloy.




Nickel Plating	QQ-N-290	0.00005”	0.001”	0.0002”	Conventional nickel plating is becoming less the norm to it's electroless counterpart. Comes in dull (Sulfamate), bright (Watts), and as a strike (Woods). Typically used as an undercoat for other plating processes.
	AMS 2403
	ASTM B689

Passivate	QQ-P-35	n/a	n/a	n/a	Passivation removes the free iron from the surface of stainless steel in order to prevent any corrosion of said iron. There is no dimensional change on the parts.
	AMS 2700

Tin	Mil-T-10727	0.0001”	0.0012”	0.0003”	Tin plating can be bright (shiny) or dull (matte). Tin provides excellent corrosion protection, but is most notable for its solderability.
	ASTM B545

Zinc	QQ-Z-325	0.0001”	0.001”	0.0003”	Zinc plating provides inexpensive and attractive corrosion protection. The zinc can be sealed with a chromate to provide color and additional corrosion protection.
	ASTM B633
	AMS 2402

*We also provide many other plating and surface finish processes. Here are a few, Zinc-Nickel Alloy, Dry Film Lubricant, Teflon Coat, Manganese Phosphate, RoHS Electroless Nickel, Teflon Impregnated Hard Anodize, Electroless Nickel with PTFE, Glass Bead Blasting, Ultrasonic Cleaning, Chemical Etching, Silver Plating, Gold Plating, Brass Plating, Bronze Plating, Antiquing, Electrogalvanizing, Mechanical Zinc, Pickling, Shot Peening, Tin-Lead Alloy, Nickel-Tin, Clear Laquer, and E-Coat (Electropainting).

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