Disco 2 Cheaply treat this invisible rust hidden deep in the door?

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MAF Diver

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93
I opened up the door to fix my window actuator:

Screenshot 2024-07-14 at 22.41.28.png


And found some rust at the bottom, is it bad? What's a cheap and easy way to treat it?

Screenshot 2024-07-14 at 22.37.46.png

Screenshot 2024-07-14 at 22.37.27.png
 
Nothing new then, my RR doors were full of rust with the back doors perforated in parts when I sold it.

Whats the yellow stuff? that looks as if its sprayed, and u can’t see daylight so thats good.

So when I got my my disco I took the door cards off and sprayed in waxoyl, plus a few other areas that RR had also suffered, in the disco doors there was already a sort of hard mastic that had already been sprayed in the bottom of the doors at the factory, anyway now 27 years on and still no rust in the doors or the other areas that the RRs & D1s suffered from.
 
What does the underside of the door look like? I.e. how perforated is it?
Not at all from what I saw. Will check again.

Whats the yellow stuff? that looks as if its sprayed
You mean the orange stuff? Is that rust?

So when I got my my disco I took the door cards off and sprayed in waxoyl, plus a few other areas that RR had also suffered, in the disco doors there was already a sort of hard mastic that had already been sprayed in the bottom of the doors at the factory, anyway now 27 years on and still no rust in the doors or the other areas that the RRs & D1s suffered from.
They don't have waxoyl in Australia, but I found this stuff:


Or do you mean a rust converter like this?

 
Not at all from what I saw. Will check again.


You mean the orange stuff? Is that rust?


They don't have waxoyl in Australia, but I found this stuff:


Or do you mean a rust converter like this?

There’s loads of stuff available for coating which will help keep oxygen and moisture from reaching the surface.
Waxoyl by Hammerrite has been around a long long while in the UK, it can be sprayed on like oil and then slowly sets as a semi hard wax, I expect most countries have something similar to waxoyl.


Yes orange/yellow on my screen 😊
 
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I use chain oil, sticky, creeps, and clings well. All oil tends to spread well but disperses eventually so I mix in a little Dinitrol cavity wax which seems to keep everything sticky. Not nice though if you have to work in that place.
 
I'm not convinced much of that is rust. It mostly looks like cavity wax, sealer, dirt and crap.

A lot of the stuff in the seam looks like the sealer between the frame and door skin.

Try a gentle clean up with a plastic brush to see what is really there, then spray it with creeping cavity wax.

I wouldn't go hard on it an ruin the factory sealer, if it IS intact.

Wurth do a REALLY good cavity wax that creeps and and sets up later.
 
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