How would you deal with this?

[Supertramp]

My bus has bits of rusts like this:

They're few and far between and are only surface rust so how should I treat before putting a flooring down? I have Hammerite KURUST and a red oxide primer.
So should I wire it down to metal, paint the Hammerite on, then the oxide? Do I then need a grey/epoxy/zinc primer?

Thanks

 

[sparkywig]

Wire brush, rust preventer, etch primer and top coat.
I don't use Hammerite as it reacts with anything you paint over the top in future.

 

[RichardAlexander]

I use the Hammerite krusty is that the green gel rust restorer, as long as you clean it off properly it's cool works bloody well, but yeah wire brush to remove loose rust treat with rust preventer/ retstorer, clean, acid etch primer blend in with wet and dry 2500 then spray

 

[sparkywig]

That should say Hammerite paint, the Kurust is OK.

 

[aspro]

Wire brush, rust preventer, etch primer and top coat.
I don't use Hammerite as it reacts with anything you paint over the top in future.

Good process. Make sure you get rid of all the rust 1st. Don't bother using any rust converters as they're all **** and you will end up re doing it in a year or two.

 

[Oslo_mark69]

Sorry beg to differ . Clean of the rust but not all, then use Granville rust converter from Frost . There needs to be rust present for the chemical reaction to work.Etch prime then prime . Red oxide is ok for underneath or anywhere where you won't see it . I would use Upol primer if it requires a top coat

 

[aspro]

Sorry beg to differ . Clean of the rust but not all, then use Granville rust converter from Frost . There needs to be rust present for the chemical reaction to work.Etch prime then prime . Red oxide is ok for underneath or anywhere where you won't see it . I would use Upol primer if it requires a top coat

Can't say I've used Granville but have used other miracle cures in the past. They are a temporary fix and will only slow the process down. If you're going to try and get rid of the rust, go the extra mile and get rid of it completely. I don't understand the logic in leaving some there just so the converter has something to bind to. What's wrong with putting etch primer on bare steel?

 

[Pickles]

Sorry beg to differ . Clean of the rust but not all, then use Granville rust converter from Frost . There needs to be rust present for the chemical reaction to work.Etch prime then prime . Red oxide is ok for underneath or anywhere where you won't see it . I would use Upol primer if it requires a top coat

Can't say I've used Granville but have used other miracle cures in the past. They are a temporary fix and will only slow the process down. If you're going to try and get rid of the rust, go the extra mile and get rid of it completely. I don't understand the logic in leaving some there just so the converter has something to bind to. What's wrong with putting etch primer on bare steel?

I've used the Bilthammer rust converter probably a tad more expensive than others but then was designed for the marine environment ... did parts of my floor three years ago and nothing come through since. At least not last time I checked.