On Fri, 23 Oct 2009 02:27:20 +0100, Bill
wrote:

Hi all,
I have 40m square of steel sheeting to paint, mostly still covered with
its original paint but also with a fair amount of rust caused by scrapes
and scratches, Obviously the ideal answer would be to sand it down,
prime and paint but to be honest the finish does not need to be perfect
so I am looking for a quick fix. Is there anything that could be
painted on either as a primer or final coat that is not going to mind
going on top of rust? All thoughts gratefully received, thank you.


That's a very large area, so whatever treatment you choose should not
be an expensive one.

I would be tempted to remove any loose rust with a wire brush then use
Kurust to stablise what rust is left behind. Then apply your chosen
paint system, preferably finishing in a colour that won't show any
areas of rust that break through. In other words, not white. ;-)