Acheiving rust on rolling stock

A G scale friend donated a dismantled Stainz to my railway.

After I had removed the motor and all other useful spares, I applied a commercial product to acheive this look.
With hind sight, if you use iron filings mixed with PVA (paint onto object and allow to dry) then apply vinegar to the surface, you will get the same effect at less than half the price.

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Here is another pic before the tarpaulin was put over the cab and a plate put on the spark arrester to stop birds nesting.....

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Very realistic Paul but I just can’t see myself doing anything like that to one of my locos.

I have since restored the rusty Stainz to full working order - not in the looks department though

Wow look at all that smoke! Real or photoshopped?