Black rust

Greybeard · 19th April 2010, 06:38 PM

Hello Detlef,

Very nice result! I see that there are several options. I'll just have to try ...

I have always been very hesitant in using acidic solutions for cleaning purpose on metal surfaces. Being a long-time firearms collector, I believed in the formula
iron/steel + acid = corrosion.

The keris that I intend to clean is -- except for several black rust spots -- a very nice dapur Parungsari in a grey/white condition with smooth edges and beautifully executed luk rengkol. All I want is to preserve it in this shape.

Regards,

Heinz

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19th April 2010, 06:38 PM	#11
Greybeard Member Join Date: May 2009 Location: Switzerland Posts: 124	Hello Detlef, Very nice result! I see that there are several options. I'll just have to try ... I have always been very hesitant in using acidic solutions for cleaning purpose on metal surfaces. Being a long-time firearms collector, I believed in the formula iron/steel + acid = corrosion. The keris that I intend to clean is -- except for several black rust spots -- a very nice dapur Parungsari in a grey/white condition with smooth edges and beautifully executed luk rengkol. All I want is to preserve it in this shape. Regards, Heinz