It is not uncommon to buy car from auction site or other source abroad that might have various degree of rust on them, in fact I recently bought one with a nasty rust.

In the past , to get rid of this, I used black-Kolta popularly know as antirust by panel beater, it disadvantage is that the black-kolta harden to a sort of rubberisd substantnce and the rust simple continue to grow underneeth the applied kolta, it is even worst when water get in between the kolta and the car frame.

Another alternative was to apply used engine or transmission fluid, why this might slow down the rust, it however washes off easily and the rust will continue.

Another option was the used of the rather expensive Rustoleum checmical (bull crap) and use of Rubberised undercoating, but same old same old.

After doing much research, I came across a natural product used in making cream and polish called Lanolin (google it). Lanolin is a natural non-organic lubricant wax gotten from sheep and ram. It is the key raw material used in expensive rust proofing product such as FLUID FILM and WOOLWAX (not available in Nigeria). Lanolin is sold at Ojota chemical market, I bought 1k own which was sufficient for my application, it even remain self.

To use it, you need a paint brush, sand paper or wire brush a container to pour in the Lanolin and may be pay 500 naira to use a filling station lube bay for 30mins. You can used you jack stand if you don mind working on your back.

To prepare the lanolin antirust, you can either heat it up a bit so that it dissolve and apply it with your paint brush or spray gun, me I just buy 100 naira empy spray bottle or you can apply it with a brush in it waxy form.

The fluid film created is rugged as hell and it repell water very well, it also hinders oxidation increase rust.

Warning - This product smell like fried ileya meat -- so small smell go dey your body or car for a day or two.

Will be nice if you could post pictures