Electro-zinc plating (clear/yellow chromate) provides a sacrificial, corrosion resistant coating on iron and steel. The modest cost, attractive appearance and sacrificial nature of zinc make it a popular coating for use on fasteners, wire goods, stampings and sheet/formed metal parts. Various chromates, sealers and dyes enhance the corrosion protection properties of zinc plating.


Our ‘Pro-T’ clear passivate for zinc plating meets current EU environmental requirements while yielding impressive corrosion protection. Ask about our ‘Pro-T’ process and additional information regarding developing international and domestic environmental requirements.

 

Electroless (or autocatalytic) nickel plating provides good corrosion resistance and hardness (Rc 46-50). Through post-plating heat treatment, hardness values can be increased. The unique quality of electroless nickel plating allows uniform nickel deposition on all exposed substrate surfaces with no build up on edges or coverage voids in recessed areas. This uniform plating thickness can be controlled to +/- 0.00005”. We perform electroless nickel plating on mild steel, brass, stainless steel and aluminum substrates.

 

Industrial hard chromium (chrome) plating provides superior wear, abrasion, and corrosion resistance properties. It also yields excellent hardness values (Rc 68-74) and boasts a low coefficient of friction. In addition to OEM applications, hard chromium plating can be used to rebuild or salvage worn or incorrectly machined parts. We provide chrome plating with either a polished or matte finish – whichever is appropriate for your specific application.

 

Electrolytic nickel plating supplies corrosion resistance that is directly proportional to the thickness of plating applied. The attractive appearance and friendly economics of nickel plating make it a sound choice for many applications.

 

Zinc phosphate (gray/black) coating produces an adherent layer of zinc on iron and steel surfaces. In this process, a phosphate solution reacts with the surface metal to form a protective layer of insoluble crystalline phosphate. The application method is by spray or immersion. The amount of coating deposited is typically measured in coating weight (mg/sq ft) rather than coating thickness. The appearance of finished zinc phosphate coating is gray or black. Zinc phosphate can be used as a paint base or in conjunction with an oil, to increase corrosion resistance.

 

The passivation process maximizes corrosion resistance of machined stainless steel parts. This increased corrosion resistance is achieved by removing soils, lubricants, foreign metals, etc. from the part surface. Consequently, the natural tendency for surface oxidation occurs. Properly performed passivation can make the difference between acceptable field performance and premature field failure in stainless steel parts.