Ok i've looked under one of my dubs and its looking a bit dry and needs a protective coating of something. I don't want to strip beams and gear off it just want to jack it up and start coating.
I was thinking kill rust black in a can or is there something better or do i get a brush type product?
I need something that withstand rocks and shit like that so let me know what you guys can reconmend, and do i have to gerni first?

tar paint perhaps

Gibbs it once a year. Coatings without proper prep will do more harm than good, and tar based sealers are just a big cover up and messy job to remove.

I like the gibbs but need something that will kill/convert the surface rust

Gibbs stops the corrosion 100%. As long as it's reapplied, better than anything else. it also improves the rubbers seals and creeps into all crevices

Since i've got a fair bit of Penatrol left could that be used?

I am on hols so cant link to the photos. But I paid out for rustbullet.
About $100/ltr. I got it for work after a lot of reasearch. Very hardwearing and only requires loose scale to be removed.
I set up a little experiment with 1 coat on mild.steel. It is a 2 coat system. Nearly 3 years living outside under a tap=oftwn wet, the halt thats unpainted is rusted, just getting scales.now. Rustbullet looks like just painted.
Hard coat to.reaist.rock.

Send me a pm with your email and I will send photos.when bome and not teyingto type on a phone.
Brad

I need to do the same with my bug, so looked up Gibbs to see what it was and where I could get it.... seems like some chap call Matt Berry is a distributor
Could you PM me prices please Matt si I can compare with other options?

PM sent.

Tarin, I will pm you as well so you know where photos are.

I went to the yard today and the piece of 1mm mild steel that I coated with rust bullet has more corrotion that last time.
It is a 2 coat system, the first coat soaks into any inperfections and leaves tiny bubbles. The second coat seals all the bubbles.
The piece of metal in the photos below only had one quick coat brushed on as I was curious, never got eh second coat.
It is now about 3 years old and has been left sitting outside under a tap the whole time.

It is just starting to get rust staining through the rust bullet I assume in the bubble holes I never filled.

Once it is a bit more rusted I will probably do another corner directly over the rust to see how it goes as the first lot was done when it was clean steel.
http://www.rustbullet.com.au/ 

I preped with wire brushing and sanding where I could then used penatrol mixed with kill rust prime.Top coated with black gloss kill rust enamel over the top, finish came up well. Brushed on, was time consuming but cost effective and did the job. How did you go with that rear seat?

cheers for that, sounds good. I like the idea of Penatrol and kill rust prime

Mate seat came up a treat.

Meet a old timer today and he has a old holden owned since new. All he does every couple of years is spray the floor underside down with WD-40 ( buys it on special). Then a day or two later hits it with fish oil. the underneath is smick!! His rig is no shed queen either.

Anybody used Hammerite? Says its direct to rust metal paint. I pick up my bus next Saturday and underneath isnt totally terrible so i'll get that covered up pretty quickly i think.

Just checked out the Rustbullet website, it does look like pretty good stuff.