Treating Rust

[Olivera]

I have a few slight spots of rust on my 89 Sierra Cosworth:

At the bottom of a couple of doors both on the outside and the inside.
Slight rusting to the rear wheel arches.
A little spot in the engine bay next to the top mount.

What can I treat these little rust spots with to stop them getting any worse?

Suggestions would be much appreciated.

[John Galt]

Dinitrol RC900. The best rust converter/epoxy barrier I have ever used, bar none. Stops rust dead.

[brakedust]

http://www.bilthamber.com/deoxgel.html

This stuff is good, Used it on my XJ6 series 1 with great results

Edited by brakedust on Sunday 17th May 16:04

[Bigdick]

Hydrate 80 seems to be quite good too!! can be found in practical classic's magazine.

Regards

Richie

[Neil_Sc]

As said, the Deox and hydrate 80 products from Bilt Hamber are superb. Give the chaps a call and they will guide you, brilliant products which work.

[oktapod]

Everything I've read or heard suggests POR-15 is the best way to deal with rust, and is likely to be a one time, permanent fix.

[Neil_Sc]

oktapod said:

Everything I've read or heard suggests POR-15 is the best way to deal with rust, and is likely to be a one time, permanent fix.

I've used the POR-15 before and it does seem like a quality product, the paint sets so incredibly hard. I tried painting the hub and outside edge of my rear brake discs with the stuff and whilst the paint lasted, I found rust forming on the surface of the paint that could be removed with a degrease, very weird. I never had this with hammerite for instance.

[oktapod]

Very odd indeed. The stuff comes with a 30 year guarantee against perforation so it sounds like you could have had a warranty claim there; either that or you didn't apply it according to the instructions? Or, as a third possibility, it wasn't rust that was breaking through but crap that had settled on the top of the paint (perhaps from another untreated part of bodywork?).

Just thoughts. This stuff is meant to be WAY better than Hammerite so I wouldn't have expected anything to break through from beneath if it had been used properly...