Got a large item of slightly rusty farming equipment to paint this week, but cannot stomach paying such a large sum of dosh for 5 litres of Hammerite or Por-15.

Can anyone suggest a cheaper, straight-to-rust metal paint?

I use whatever b&q/homebase etc etc have on offer.
Metal gate post kinda stuff.

Red oxide by Witham Paints is very good, I painted my old chassis with it and then hammerite on top 5 years ago. The hammerite chipped off in less than 2 years, the red oxide is still there despite being soaked in clutch fluid!

Failing that the tractor spares company Sparex supply enamel paint in any tractor colour you can think of, it does on quickly (spray or brush) and takes a good belting with a hammer to chip it.

Harry