Hard chrome plating can serve a range of purposes, from improving corrosion resistance to enhancing the appearance of an object. This particular type of electroplating has its own specific advantages to consider when you are trying to decide on an appropriate surface treatment.
What exactly is hard chrome plating?
Chrome plating is a form of electroplating, placing an object in an acidic electrolytic solution and passing through an electrical current to attach a coating of chrome. Bright chrome plating involves a thin layer of nickel, then a thin chrome layer. Hard chrome plating, as seen at poeton.co.uk/advanced-treatments/apticote-100-hard-chrome/ is only chrome and is applied in a much thicker layer. It may be microcracked, microporous, porous or crack free.
What are the benefits?
A surface with hard chrome plating becomes much harder and more resilient than the original. It is resistant to corrosion, heat and other forms of wear, therefore protecting the underlying components. It is also smooth and low friction, meaning it is effective for parts that need to slide. The finish is not as shiny as bright chrome, but is still aesthetically pleasing.
Potential issues
The solution used for the bath during the application process contains potentially hazardous chemicals. If not disposed of correctly, these could end up polluting water or soil, which in turn could harm plants and animals, or contaminate the food supply. There may also be health risks for workers exposed to the solution
Smooth, hard, shiny and durable, hard chrome plating can enhance the properties of other materials, though it is not suitable for all situations.