Darkening magnesium / forced patina

[Vintage Engine Repairs]

Hi,

I know it’s unlikely, but has anyone forced a patina to darken magnesium?

Just through experimenting I have found water and baking soda to do an excellent job, but I don’t know the long term affects / how to stop the baking soda from possibly damaging the mag long term / how best to neutralise the solution?

Thanks in advance

 

[kneedeepinsaws]

CLR may discolour.
As for the baking sofa Neutralizing a base requires an acid
Although I think flushing and scrubbing with just water will dilute it enough

 

[Vintage Engine Repairs]

CLR may discolour.
As for the baking sofa Neutralizing a base requires an acid
Although I think flushing and scrubbing with just water will dilute it enough

Thank you that’s great

 

[Basher]

If a cylinder I boil them in a metal pan with a couple of dishwashing pods in the water, it will turn a shiny new cylinder quite dark and leaves the cylinder squeaky clean.

 

[Vintage Engine Repairs]

If a cylinder I boil them in a metal pan with a couple of dishwashing pods in the water, it will turn a shiny new cylinder quite dark and leaves the cylinder squeaky clean.

This is for the mag cases. I had to remove the old patina to build up a pocket, but I want to blend it all back in.