Chris Green wrote:
Bob Eager wrote:
On Tue, 28 May 2019 20:33:35 +0100, Chris Green wrote:

Lee Nowell wrote:
Hi all

I have an old trailer which has a fair amount of surface rust on the
chassis where the original paint has come off. I have it propped
against a wall now so thought I might as well have a go at fixing it.
The floor is also a bit poor so will look to replace that too.

I have been recommended to - wire brush most of the rust off - use
Kurust on what's left - cover it all in waxoyl

Any other / better suggestions? I used waxoyl years ago and seem to
recall it just stays as a grease like substance. May not work so well
on the top surface of the chassis below the new floor as it will
squeeze it out and if the floor is wood maybe stain the wood?

My favourite rust treatments are "Vernis pour rouille" and "Owatrol"
which are fairly similar products. They are like a clear varnish that
you paint directly onto rusty metal. You only have to remove really
loose rust. They even advise that a little bit of rust is *necessary*
for them to work properly. You can paint over them with ordinary paint
if required.

They seem much more available and popular in France (etc.) but I think
you can get Owatrol in the UK.

Sounds much like Jenolite (UK) which is what I use.

I thought Jenolite was a rust remover - maybe they make more than on
product.

A quick search seems to confirm what I thought, Jenolite is a rust
remover or rust converter.


A lot of these products are phosphoric acid based with a few additives to
turn that into a proprietary product tailored for the end use. Products
for Rust conversion will have a fairly large proportion of acid,
Others like Coca-Cola where it is used as a flavouring will only have a
small amount.

Phosphoric acid can be purchased a lot cheaper than the branded products if
you have a suitable supplier like an agricultural supplier near
by,unfortunately delivery charges may skew the economics if you havent.

GH