How do you treat rust on metal outdoor furniture?

[#1]

For a rusty metal outdoor furnishing, start by sanding the rusted areas back with 120 grit sandpaper to remove the bulk of the rust.

Then coating the rusted areas with Bondall 250ml Ranex Rustbuster Rust Converter. This will bind the rust and prevent it from continuing to corrode the surface.

To paint your furniture, apply White Knight Rust Guard Medium Grey Metal Primer Paint to all surfaces, followed by White Knight Rust Guard Paint in your preferred colour. - MitchellMc

I just recently repainted an outdoor mirror frame which had started to rust out.

I used a wire brush drill attachment and painted the worst bits with a rust converter. I wiped everything down with sugar soap then used Zinsser Bullseye 123 which is a primer, undercoat and stain blocker. Top coated with semi gloss Dulux Aquanamel. A light sand in between coats and it came up looking great.

The colour I used was Dowager Grey, which I think was a Taubmans colour. The Aquanamel will dry quite quickly, but needs to have time to harden. Preferably after painting the final coat, leave in the sun for as long as possible to "bake" it. This might take a few days. Good luck. - kacharash4