Thread: Fixing Corrosion - Defender

Originally Posted by Jimmy

Hey all,

I've got a bit of corrosion coming into my 2001 Defender, generally around some of the rivets and the ribbing in the roof. I'm still within my Landrover Corrosion Warranty timeframe but the vehicle has not had inspections done to date so I figrue the chances of Landrover forfilling my claim would be low.

So my question is, how does one fix up the corrosion. It dosent seem to be anything but surface rust, so I figure I could simply sand it back treat it and then re-paint. What products/treatment/methods should I use for this process, or is it generally advised against??

any info would be great.

Jimmy

its not rust Ali does not rust. Most of the time It is oxidisation, same as you get on the bottom of the doors. Need to rub down get the white powder stuff off and then prime with etching primer (again beacuse ali and not steel) and then paint

in an aloooominum boat hull, 50/50 brown vinegar and water stops the corrosion in its tracks(the chemical process) and then you seal with Penetrol, problem solved, cant see it would be any differnt in a Landy. In fact, hadnt thought of it till your question prompted me, did my boat a few months ago, might pay to give the bottom of the doors the vinegar treatment as a preventative.

Originally Posted by Reads90

its not rust Ali does not rust. Most of the time It is oxidisation,

Rust is a term for the OXIDATION of iron. Oxidisation is not a word...

Ok assuming I can just sand back the powdery stuff and rub it back, what etching primer should I use and how can I work out the exact type of paint the Defender has and where to get it?? (2001 defedner white).

THe vinegar treatment soudns interesting to say the least...Can anyone else support this process??

Also whats Pentrol and where do you get it?

(gee I don't know much about this stuff)

cheers

Originally Posted by BigJon

Rust is a term for the OXIDATION of iron. Oxidisation is not a word...

The noun oxidisation has one meaning, the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reductionning:
Meaning #1: the process of oxidizing

Originally Posted by Jimmy

Ok assuming I can just sand back the powdery stuff and rub it back, what etching primer should I use and how can I work out the exact type of paint the Defender has and where to get it?? (2001 defedner white).

THe vinegar treatment soudns interesting to say the least...Can anyone else support this process??

Also whats Pentrol and where do you get it?

(gee I don't know much about this stuff)

cheers

Certainly support the vinegar (which is a basicically a low strength acid) and water - you can go out and buy a neutraliser - but it won't work any better than vinegar - alter the strength from 50/50 with water to 75/25 for really bad oxidisation - but just surface stuff 50/50 will do just fine.

Ali etching primer should be available from any decent paint supplier, do not use normal primer - it will just fall off. The same paint supplier will also be able to supply the colour match, you might need to give them the paint code from under the bonnet.

Originally Posted by Jimmy

Ok assuming I can just sand back the powdery stuff and rub it back, what etching primer should I use and how can I work out the exact type of paint the Defender has and where to get it?? (2001 defedner white).

THe vinegar treatment soudns interesting to say the least...Can anyone else support this process??

Also whats Pentrol and where do you get it?

(gee I don't know much about this stuff)

cheers

Why??? Dont you trust me???
Penetrol is some resiny thingo made from some hydrocarbony thingo that is used to seal a lot of marine equipment from metals to timber, basically an estapol that sticks and penetrates and you can paint over it. Its even supposed to stick to glass .You can get it from any boat accessory shop.I had this oxidisation problem with my Tinny and after ringing around the boaty places thats what they told me they would do if I dropped it off to them, wirebrush or such, vinegar, penetrol, paint. no problemo.

Originally Posted by BigJon

Rust is a term for the OXIDATION of iron. Oxidisation is not a word...

and it never sleeps. (just ask Neil Young)