The first picture is of the calipers untreated....

The second picture is of the calipers after treatment...

The top calipers were Fertaned and the botom calipers were Bilt Hambered.
Moderator: martauto



No - it reacts with the surface to lay down a protective barrier..Idol wrote:I was hoping to see fresh metal after it was hosed down???
Just threw them in, Bilt Hamber is non corrosive so does not damage the rubber.craigieeb wrote:Did you strip them down before "dipping" them?
or
did you just throw them in with all the rubber attached?
Bilt Hamber Deox C - Concentrated Rust Remover +- £15, I used about 100g of the 1kg.polsta wrote:what bilt hamber product was it exactly ? (looks decent) they look like 2 different products that are for different things/ways to be used, fertan isnt a "stripper" to be used in that sort of way, as the instructions tell you, any "rust" treated with fertan goes dark/black , not back to bare metal
Idol wrote:Gonna try some Billet Hammer, what was the product you used and did you dip them or just brush/spray on?
Yes you can hose it down, but not pressure wash.....polsta wrote:so you read the instructions did not say it leaves fresh bare metal, it says it turns it black and leaves a black residue, but "it just left some black stuff on it" , and your not supposed to hose it down
http://www.fertan.co.uk/how_to_use_fertan.htm
Gavla wrote:
And yes I agree on the difference in product, however both are rust removers.
I will be putting the Fertaned calipers in the solution to see if maybe they come out even better.
Polsta I am not knocking Fertan, I merely did a comparison of 2 different products that claim to be rust removers.polsta wrote:so you read the instructions did not say it leaves fresh bare metal

Mint, I might have to get some of that thenGavla wrote:Just threw them in, Bilt Hamber is non corrosive so does not damage the rubbercraigieeb wrote:Did you strip them down before "dipping" them?
or
did you just throw them in with all the rubber attached?
your not thinking of it in the same way of something that you "dip" something in to actualy strip/remove rust, its a rust convertor, not remover as such, go through the pages of this,clicking next page at the bottomGavla wrote:Ok just to confirm, on the bottle of Fertan I have it says the following on the front;
Destroys Rust / Removes rust without shot blasting / Destroying Rust - Protecting steel / is the optimal treatment for the removal of rust from all metal constructions
I thought it was a rust remover...my bad
Agreed! I put some on a couple of rusty bits where the bonnet hinge is connected to the body. Couldn't really paint over that. I've given it another try....finger crossed....Kedge wrote:I e tried fertan and for what I wanted it for I was not impressed, I can see the benefit for things like Polsta says with tubes and cavities but not on any surface you intend to paint.
same here, its not for "finished" areas, panels etc,Kedge wrote:I e tried fertan and for what I wanted it for I was not impressed, I can see the benefit for things like Polsta says with tubes and cavities but not on any surface you intend to paint.



We understand. Fertan is a rust remover/treatment and BH Deox-c just removes rust. Can we talk about something else now?polsta wrote:gavla you just seem to be miss understanding what fertan does

Bilt Hamber actually mention that this process together with their product works well and fast.Brianmoooore wrote:If you want things like calipers back to bare bright metal, just get yourself a little washing soda and set up an electrolysis tank.

I used a similar product I found on a shelf in a mate's dads garage - about 20 years old but still fine. He'd bought it to paint metal bins with and said it was excellent.Jozi wrote:If fertan "converts" rust to something else (lets be honest, it can not convert oxidised metal back to metal) doesn't that mean that under the converted layer you still have rust? How do you know how deep fertan has converted oxidation to what ever it converts?

Do you have an M30 by any chance?Jos wrote:I'd imagine Fertan is the same as Vactan, tannic acid combined with an organic polymer, the rust is passivated to a metal-organic compound. Pretty good if you clear off the loose rust 1st.
I use Vactan overcoated with Jotamastic, pretty much what they do on ships/rigs. Seems to work ok