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					Originally Posted by ariel
					
				 Does anybody use  rust converters ( Rust-Oleum, Corroseal et al)?
 
 It has tannin, that converts rust to black magnetite and a polymer to seal it completely?
 
 There is no way to de-rust examples like  Bandook's katars without leaving only a foil-thin sliver of live steel.
 
 I have shown here a 15-16th century bauernwehr preserved like that. That's how the surface looks like
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 That's a great technique of preservation Ariel,will check where I can source it in New Zealand,Many Thanks