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[jtopiso_imp]

Google for "balinit dlc coating". I think it must be some coating of that kind. I also think it won't be cheap.

I will,
Thanks

I will,
Thanks

Let me elaborate on my quick answer (I was posting from the phone, so...)

There are several coatings that could be use. I am sure that there is something among the coatings from "balinit" that would work, but perhaps you have some other supplier closer to your place.

Anyway: the use of chrome for suspension bars and damper rods is due to several propierties, mainly:
-hardness
-corrosion resistance
-friction performance (i.e. low friction coefficient)

So you need something that performs the same or better than a chrome coating but with a black (or very dark) apperance. From the top of my head, DLC would be my first choice, but I'd get profesional advise.

Also: keep in mind that unless you are getting new bars made to your spec, you'll need to strip the chrome first and then apply the new coating. But, by doing so, the OD of the bars has to remain the same. I think this could be quite tricky, as sand blasting the chrome out is not an accurate process, so the final dimension after coating would be difficult to predict.

Or perhaps I am over-thinking about it, and for coating experts this is a piece of cake...

Let's us know if you get a quote.