Painting/treating rusty old car parts before reinstallation

[Bennet]

Hi Pistonheads,

I've disassembled the rear suspension on my old MG ZT-T. Most of it is being replaced but the subframe is going back on.

For the subframe, my plan is:

1. Wire brush drill attachment until it's looking a lot cleaner
2. Paint it with - something...

Is this the right plan?
What should I paint it with?

The car is an all-weather workhorse.

Or should I take it to the local body shop and get them to spray it with underseal or something?

Thanks.

[suggest_me_a_name]

Degrease

Wire wheel

Rust converter e.g. POR-15

Clean.

Panel wipe

Zinc primer

Then paint

Then dintrol

[Belle427]

Flap wheel most of the corrosion off and then paint, im currently doing some suspension arms on a car and am using rustoleum combi colour black.
The new epoxy paint systems are supposed to be very good too, I see buzzweld products recommended a lot.

[_Hoppers]

Don’t forget to remove sharps edges and casting marks for a finer finish!

[ROTELLA]

If you can get it to a sandblaster/powder coating place they'll do a far better job than you can manage yourself.
It'll leave you with an excellent surface for paint/gravitex or similar.