M38 Fallschirmjager helmet Restoration–2 29 March 2019a
M38 Fallschirmjager helmet Restoration–2 29 March 2019a
To remove rust from this thin shell, Oxalic acid is the best choice and no strong smells and safer.
But have no experience whatsoever, soaking seven days in the acid and one day in baking powder. The result was delighted, next step is to seal it off from element.