coating can be removed and aluminium alloys can be coated, but the processes are much more difficult than working with stainless steel. stainless steel is also difficult to plate. aluminium is hard to plate because it oxidize easily. aluminium forms oxide layer to protect the metal to oxidize further. when you remove this layer (necessary before plating), you can plate the aluminium but the problem is that you cannot exposure the aluminium to air or the thin oxide layer is formed again. aluminium can be plated in a zincate -solution (plated by zinc) at first and then plated again with the metal you want in a normal way you do a plating. the problem is the very alkaline solution and you cannot put the watch to that solution. (i think.)
so basicly stainless steel is much easier than aluminium to be plated, but you cannot plate the stainless steel without a proper preprocedure. the result will be fading otherwise... and when the preprocedure is done correctly, the coating will last years.
so basicly stainless steel is much easier than aluminium to be plated, but you cannot plate the stainless steel without a proper preprocedure. the result will be fading otherwise... and when the preprocedure is done correctly, the coating will last years.
