Rust Fixing

[brett]

Car has mostly surface rust, what's the best product to use to ensure rust doesn't come back? Currently trying "Septone" Rust Convertor but a bit sceptical of the product.

[stevo56]

Not going to recommend you do too, but we use hydrochloric acid. This kills the rust etc but it stinks and is dangerous to YOU.
Either way it really works. And it's bl00dy cheap.

[Effie C]

Rub the surface rust back to bear metal and follow normal paint preparation and paint it, if more than surface rust the POR company makes some great productions for car resto's.
See classic car mag for ad.
John M

[craiga]

I'll back what John says, investigate the POR range of products, they are a little on the expensive side but they WORK. Detailed instructions are given and professional restoration companies use them so thats a fairly good recommendation in my book.

They have a website http://www.ppc.au.com/that list distributors in each state.


Good luck with your rust fix.

Cheers,

Craig.

[Ed]

As Craig and John say... POR15 systems are definitely the go..

deoxidine is the stuff you need, and it is a mild acid.. there are heaps of similar products by various names (ie Metal Ready, Deran A, Deoxidine).  
HCl is great but really strong... you would only need say a 10% (v/v) mix of a say 10M conc. (ie not much as HCl is the most powerful acid available)... vinegar (acetic acid) on the other hand is probably not strong enough to penetrate "deeper" surface rust..

POR15.. I've used the POR15 rust prevention system on my entire car, inside, outside, under, on top.. 100% coverage.  

Pricey in the short term, but cheaper over the long term.

The stuff is tough!.. remember to give your metal good tooth or it can lift under certain circumstances.

Cheers

Ed