What do I need to fix rust

[mick.]

Kill rust enamel primer will be fine.

[flashman1207]

Thanks Mick

[sil3nt_dr3ams]

Let me introduce you to this ,

http://catalogue.3m.eu/en_GB/GB-Mari...-_Amber~nocode

If you dont mind smell on a hot day , mix the can stuff with old engine oil and spray it in with a body deadner spray gun .

[sil3nt_dr3ams]

If it is that Flashman, i would cut out the sections and then cut out some new tin pieces that cover the edges of the holes by at least a couple of centimeters, and braze them on, after using the rust converter.

Try to cut pieces where you can add a right angle fold into the gutter for extra strength.

Welding will distort the panels more, and mean a bit more grinding back.
Then skim coat it, sand and paint.

Mic

Keep a bucket of cold water beside you when welding with cloth rags in bucket , every couple of tacks wipe over with a wet rag. It will quench the steel as your welding.

[patrolmq]

+2 for fish oil on the insides (under roof lining) when you are finished with the outside. I've just done my MQ, should last another 20 years now LOL!

[missingdna]

just remember that when using a rust converter, you NEED some rust there for the chemical reaction to occur.
You should only be removing loose,flakey material with sanding discs,wire brushes etc .
The secret is read the instructions and follow the time guidelines for application as rust converters are not a wipe on, wipe off kind of thing.

[Sid]

Look at por15 paste specially made for gutter sealing brilliant product.

[flashman1207]

Right, rust all cut out. Not too bad just two smallish patches on passengers side (unfortunately one on rear corner). Don't have access to or money for welding metal in so have glassfibered it in. Its actually pretty good as the fibreglass goes between inner and out skins so very little chance of it moving. Then fibre filler on top and then normal filler. Radius on corner was a bar steward but I got it pretty much perfect. All gutters sanded back to bare metal as was the sides of roof up to the radius. All primed (3 or 4 coats) and sprayed up (4 coats). Just got to seal the gutters.....