Thursday, November 23, 2017
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Zinc Plating (RoHS Trivalent)

Zinc is one of the most common forms of electroplating. It gives corrosion protection to ferrous components and it can be clear, yellow and black colored post treatments called chromates. The zinc electroplating process can be used to coat components for automotive, telecommunications, semiconductors, medical and government industries. It also provides an effective undercoat for paints when high corrosion performance is required.  

Zinc Chromates (RoHS Trivalent) 

Chromating is commonly performed on zinc plated parts to make them more durable. The chromate coating acts like a paint, protecting the zinc from white corrosion. Chromating can make the zinc plated parts several times more durable. It can be it either hex or trivalent, and it can be clear, yellow and black colored.

 

Anodize Type II & III (RoHS)

Anodizing is an electrolytic process used to increase the thickness of the natural layer already present on the aluminum surface. Anodizing increases the corrosion resistance and wear resistance and provides better adhesion for paint primers and glue than the bare metal.

Anodic coating can also be used for a number of cosmetic effects, either with thick porous coatings that can absorb dyes. Colors available: clear, black, blue, gold, red, green, grey, and others upon request.

 

Conversion Coatings on Aluminum (RoHS Trivalent) 

Chemical Conversion Coating comes under different names like chem film, chromate, Iridite and alodine.  A chemical conversion coat is a very thin protective coating of aluminum oxide.  

 Although there are several kinds of chemical conversion coatings for aluminum, the most common are produced from a chromate. It can be it either hex or trivalent. 

Chemical conversion coatings can be used for mild corrosion protection although they are normally used as an undercoating and base for organic finishes or adhesive bonding.

 

Electroless Nickel Plating (RoHS & Mid Phos.)

Electroless nickel plating is an auto-catalytic reaction used to deposit a coating of nickel on a substrate.  Unlike electroplating, it is not necessary to pass an electric current through the solution to form a deposit. This plating technique is used to prevent corrosion and increase the wear resistance.

Medium phosphorus has a high speed deposit rate and offers bright to semi-bright finishes options for cosmetic finish. This process is very stable, and is the most common type of electroless nickel applied.
 

Passivation of Stainless Steel 

The passivation process removes "free iron" contamination left behind on the surface of the stainless steel from machining and fabricating.  These contaminants are potential corrosion sites that result in premature corrosion and ultimately result in deterioration of the component if not removed. 

The passivation process facilitates the formation of a thin, transparent oxide film that protects the stainless steel from selective oxidation/corrosion. The passivation process cleans and protects the stainless steel substrate. 


Chemical Polish for Copper and Brass

Chemical polish is a liquid acid solution used for chemically polishing copper and brass alloys.
  


Iridite 8P Bright Dip for Copper and Brass

Iridite 8P bright dip is a chromate conversion process that produces a variety of highly protective coatings on copper and brass alloys.



Vacuum Impregnation

Vacuum impregnation is a that seals components without changing dimensional or functional characteristics. 

The vacuum component of the process is the removal of air that occupies the migration path commonly known as porosity in cast or pressed metals. 

The impregnation part of the process is replacing the void with a durable and stable material suitable for field of use.

Vacuum impregnation prevents the migration of fluids or gases out of or into a manufactured component.
 


PTFE Dry Lubricant

PTFE dry lubricant coatings will support a wide range of lubrication needs where performance properties of hardness, dry-film lubricity, release (non-sticking), endurance and corrosion protection is required.

PTFE dry lubricant coatings firmly bonds to substrate, providing improved lubrication and longer wearability.  

    
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