Got RUST? It's easy to remove, here's how.

[Peter Laidler]

I wouldn't agree that the 'rust' that is left and turns black is 'dead' warpig. It is still oxodisation - or rust for want of a better term, in another form. But 'dead' it ain't and as soon as oxy and moisture in the atmosphere get to it, it WILL return. I'm not a metallurgist or a corrosion engineer but I wonder if JM will/can explain this in greater depth.

We used to bead blast some absolutely dire, dripping with rust No5's and L1A1's and unless they were thoroughly down to 'the white', they'd be back

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[WarPig1976]

I wouldn't agree that the 'rust' that is left and turns black is 'dead'

True, poor word choice on my part it still needs to be removed.