EC Willams delivers a number of additional services to give their customers a one stop shop for a large range of finishes.
They pride themselves on delivering the highest quality plating in the UK.
What is passivation of stainless steel?
Passivation of stainless steel is completely different to passivation of zinc plating. A stainless steel part is naturally made of stainless steel, which should be stainless. However, often that’s not the case, stainless steel is an alloy made up of other metals. As a result, it has ferrous metal in it. Some of those small iron particles of the alloy will be present on the surface of your part. What this means is if you take even a moderately high quality stainless steel fastener and you leave it outside for a period of time, it will develop little red dots, which are actually the ferrous parts of the alloy starting to rust.