When choosing the right metal for your plating needs, you need to consider the particular qualities each one offers and how important they are to your finished product. A key consideration for many industry sectors is corrosion resistance. Whether you are part of the automotive, petrochemical, medical, power generation or many other sectors, resistance against corrosion is hugely important.
At Karas Plating, we provide a wide variety of plating techniques that offer great protection against oxidisation, but just how durable are these processes, and do they offer any other advantages?
Copper in its pure form is completely resistant to corrosion.
While it may develop a green-ish patina on its surface, the metal itself contains insufficient iron to allow it to rust. Since it is softer than other metals it can be worn away by abrasion, so often serves better as a barrier layer, onto which stronger metals can be plated.
Electroless nickel plating (or ENP) is another plating technique that offers great durability and resistance to corrosion.
Its main benefit it its method of application. Since ENP is applied in a uniform layer across the substrate, even complicated components can expect a full coat, with no weak spots.
Zinc plating is unique among our other plating techniques in that it continues to provide protection against corrosion, even if the plate surface itself is compromised.
Should a scratch or puncture expose the iron substrate, the zinc will oxidise first, acting as a sacrificial layer, thanks to its lower reduction potential.