It is understandable that a metal screen door exposed to the elements for prolonged periods is extremely susceptible to weathering in the form of rust. This short guide will help you remove all rust from your metal doors.
Step 1 - Apply the Vinegar
Pour the vinegar onto the rusted patches of your door's metal screen. Leave to sit for one hour.
Step 2 - Lay It Flat
Obviously, this is easier if you can remove the door and lay it flat. If impossible, keep rubbing vinegar into the vertical door for 1 - 2 hours. The rust will begin to dissolve, though it will work a lot better on a horizontal door.
Step 3 - Removing the Rust
Dip your brush into clean water and scrub at rusted areas. Some areas will clean a lot faster than others, which may need multiple brushes to even begin dissolution. With this job, perseverance is key. Any especially stubborn areas must be treated with a mix of water and baking soda. Leave this mix to dry for two hours, before wiping away gently with a soaked hand towel or cloth.
Step 4 - Persistent Areas
There may still be some rusted areas. You must continue to scrub these with your brush after removing the baking soda mix.