Fertan Rustconverter 250 ml in pumpspraybottle

Product no.: 22201

In stock

Old price

14.95 €

Price plus delivery

FERTAN provides the simple and safe way to treat and remove rust and corrosion from steel and iron. Long term test results and many years of practical experience show the process is better than shot blasting. Fertan® Rust converter is applied to metal to destroy rust, protect the surface and act as a primer for any finish coat.

Made from the highest quality ingredients Fertan Rust Converter (FRC) has for many years provided a tremendously effective way to treat rust in any situation. Safe and easy to use it totally destroys rust and nothing but the rust. FRC goes into almost every situation where steel or iron is used and produces the right results. 

The purpose of Fertan is to provide you with all the benefits of shot blasting with no surface damage and no material loss.  The advantage is that it can be achieved by just unscrewing the top of container and working a brush or spray.

As there is no blasting the process is nuisance free and silent.  You are able to observe and be sure that all the rust has been converted before applying opaque paint coats. Laboratory tests and practical experience have proved this efficiency many hundreds of thousands of times across Europe and the rest of the world. 

Fertan is suitable for treating steel and iron surfaces, even if they have to be left for weeks or months prior to final painting. Rust is removed and prevented from re-forming for up to six months so delays in your painting schedule will not be a disaster.  Fertan can be overcoated with oil or water based paints, epoxy, lacquer, wax.......

Fertan is a complex, patented tannic acid, water based non toxic product.  It offers exceptional protection against rust despite being environmentally friendly.  Isocyanates and high volatiles are not necessary so we don't use them. Fertan converts loose rust to powder that can be rinsed away leaving a converted stable and inert surface. Fertan when kept in closed containers and reasonable conditions has an unlimited shelf life.

Application is simple and safe....

Brush off loose rust and remove dirt, oil or silicone products that will prevent Fertan reaching the metal surface.

Apply Fertan by brush, roller or spray and leave for 24 hours, extending this to 48 hours in low temperatures.

The surface can now be rinsed off and overpainted.  The overpainting can be left for weeks, months or years depending on the environmental conditions.

Do try Fertan Rust Converter, it should be the end of your search for an effective answer to rust.


All steel and iron including:
·         Cars, lorries, trailers                               shipping                                cranes
·         Storage tanks                                          bridges                                  structural steel
·         Agricultural equipment                            inter-machining coat


Fertan® Rust Converter was designed to be the best converter and remover of rust to provide an object suitable for overcoating.  Fertan® will also provide resistance to further rust for up to 6 months without painting (environment dependent).

Surface Preparation
Old Steel:
Loose rust and scale should be removed. Firmly bonded rust is welcome. Loose rust, mill scale and coatings may be removed by any appropriate method (manual or power wire brushing, chipping, ehpwj, peening) followed by rinsing with water to remove residues.  Fat, oil, silicon, salt and dirt should be removed with detergent and/or an alkaline degrease ror panel wipe. Always finish with a fresh water rinse.

Rust Conversion Time and Surface change:  One coat of Fertan® Rust converter is recommended. The metal surface can be damp at application.  Over a period of 12 hours the surface will become black. Conversion continues for up to 24 hours and is temperature and humidity dependent.

Equipment and methods  Fertan® may be applied by brush, sponge, roller or spray.  Spray application is recommended  for large areas. Airless spray equipment is fast, effective and better than conventional air-spray equipment. In this  litigious age we, like paint suppliers, recommend gloves and eye protection.  Fertan® has always worked well with all surfacing products.  Again it is responsible to recommend that a trial area should be tested. Very rarely and only with  very strong and thick layers of rust it is useful to apply Fertan twice, the first time thinned with 20% - 50% of water.  Leave for seven days and then pressure wash and the rust will fall off.  Then apply a fresh coat of pure Fertan as normal.
Very strong and thick means the sort of rust found on marine pilings(1cm+).

Directions for Use


1)    Remove loose rust and grease as described above.
2)    Dampen the metal surface. (don’t do this if just ‘dotting’ stonechips on car bodywork).
3)    If applying by brush or sponge pour sufficient Fertan® into a suitable clean container.
4)    Apply liberally by brush or sponge or airless spray.
        All rusted areas will turn black over the next 1 - 24 hours (moisture & temp dependent).
 5)    In dry conditions the surface should be dampened with a light water mist after two hours to
        facilitate the reaction and maximise effectiveness
6)    If any rust has not converted apply more Fertan® at any time.
        The reaction can continue  for up 48 hours. This provides the maximum performance. 
7)    At the end of this time wipe down or wash surface with low pressure water (ie not pressure wash) to remove the loose black dust that    will be present (rust too loose to bond). This will also rinse off any
        unused (brown) Fertan lying on the metal.  On large exterior structures rain will do this.
8)    When the surface is dry paint/coat as normal.
9)    Brushes, sponges and spray equipment should be cleaned with water, preferably within a few hours.


 Application Conditions

Fertan® Rust Converter should be applied when the air and surface temperature is above 1ºC and below 30ºC. The reaction will continue for up to 48 hours at lower temperatures or dry conditions.  In high temperatures and low humidity ensure the surface stays damp. Fertan® may be applied in damp conditions.  If you need to apply Fertan® in temperatures above 30º please contact us to discuss the process.C

Cleaning up.

Wash brushes and equipment with water.  Rinse adjacent painted surfaces with water.  Some light coloured paints may take a stain from Fertan so it is easiest to remove it promptly.  Wash hands and skin with soap and water. Fertan will stain clothing.  Prompt washing in large quantities of cold water and mild detergent may remove the marking. Fertan® spilled into the environment should be washed down with water. 

Fertan has been manufacturing protection products for over thirty years and are the market leaders in vehicle protection and corrosion protection generally in several European countries including Germany.

In addition to product we also offer specialist consultancy in corrosion protection.  This is mainly used by commercial processors, automotive, shipping and the building restoration / preservation sectors. 


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