let79

I dunno whether this method works as im still waiting for the result. Just had it fixed mself. I have some rusts appearing on the back door hinges. As i know WD 40 doesnt really works as to avoid rusts you need to cover the metal from air and water. With WD40 spray on the metal its impossible to paint the bare metal and with WD40, its just temporary solution. Correct me if im wrong.

Here is my method. No harm trying.
Ingredients.
1) Water colour paint brush. (small size)
2) Anti rust. Hammerite Kurust Rust Convertor
3) Nail Polish (as near to your car colour)

Preparation

Clean surface by removing all loose paint and rust, dirt, grease and salt. Remove grease. Rinse with clean water and allow time to dry. Possible if thinner + water.



Application

Shake container well and pour required amount into a plastic container.
By brush: apply direct to rusty area, working well into heavily pitted areas, corners and edges. Avoid coating onto painted areas.
Hammerite Kurust will turn blue/black when reacting with rust. If it does not change colour in 1 hour re-apply. Apply topcoat after 3 hours.
Do not replace unused Kurust back into the original container.