Rust converter test - comparisons. Com 2020

The best rust converter in comparison

Rust converter, and rust has no chance

Rust is not only unsightly, it will continue its destructive work unless it is stopped. There are many different methods of removing rust. We want to introduce you to one of the simple methods that Bestselling rust converter.

It gets to grips with the rust without the need for a great mechanical and laborious rust removal. in the Rust converter offer There are various means available in the trade, all of which are based on the same active principle, namely to convert iron oxide into a solid protection.

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Best recommendation


Rust cover Brunox 1813002 epoxy rust stop 400 ml

  • High penetration in the rust pores
  • neutralizes rust
  • gets into the smallest of cracks

Price-performance winner


Rust converter Fertan 22601 rust converter 1 L

  • is produced in Germany
  • can also be used on damp areas


Rust converter NIGRIN 74049 rust brake 200 ml

  • Thin
  • particularly productive


Rust-converting Würth rust converter Rust converter

  • environmentally friendly dispersion base
  • stops corrosion


Rostumwandlder Rostio rust converter & primer 1 liter

  • good flow properties
  • delays further rusting

Name Rust cover Brunox 1813002 epoxy rust stop 400 ml Rust converter Fertan 22601 rust converter 1 L Rust converter NIGRIN 74049 rust brake 200 ml Rust-converting Würth rust converter Rust converter Rostumwandlder Rostio rust converter & primer 1 liter
Price Check price Check price Check price Check price Check price
comparison result
Note on the comparative grade

Best Recommendationtest-vergleiche.com1,5ExcellentRust converter

PricePerformance test-vergleiche.com1,6goodRust converter

Tops Producttest-vergleiche.com1,7goodRust converter

Tops Producttest-vergleiche.com1,8goodRust converter

Tops Producttest-vergleiche.com1,9goodRust converter

Manufacturer/Model Brunox Fertan Nigrin Würth Rostio
Dosage Form spray for brush, roller or spray gun for brush for brush or roller for brush or spray gun
Base Epoxy resin water-based kA Dispersion base Dispersion base
Content 400 ml 1.000 ml 200 ml 1.000 ml 1.000 ml
Price per liter 43,30 ?? 25,33 ?? 38,80 ?? 35,79 ?? 22,95 ??
Can be primed ja ja ja ja no
Further processing 1 hour kA 3 hours 3 hours 3 hours
Features with brush also available as smaller and larger containers with brush environmentally friendly sufficient for 20 square meters
  • High penetration in the rust pores
  • neutralizes rust
  • gets into the smallest of cracks
  • is produced in Germany
  • can also be used on damp areas
  • Thin
  • particularly productive
  • environmentally friendly dispersion base
  • stops corrosion
  • good flow properties
  • delays further rusting
Summary Rust converter and primer in one Rust converter with good creeping effect Rust converter with a good end result Rust converter for an optimized surface for further painting work Highly effective rust converter plus water-based primer
To the Amazon offer

Our comparison chart for Rust converter comparison does not replace one Rust converter testin which a special Rust converter test winner can be recommended. In order to increase the added value for our readers, we may link to an external rust converter test of trustworthy sources. Only you decide which model is your personal one Rust converter test winner is.

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Rust converter at a glance

  • A rust converter is a mostly liquid mixture of substances that transform rust into stable iron compounds through a chemical conversion. It is therefore often used to combat rust and often it also has a preservative effect against new rust formation.
  • Rust converters are used wherever iron or steel parts need to be derusted. You can especially get involved in the car, bike or motorcycle Rust converter cheap because it can be primed, painted or smoothed immediately after drying.
  • Some products also have an additive Rust converter primer. This saves time and you don't have to apply it before further processing. This means that painting can be carried out immediately after drying.

Rust converter application in comparison

Removing rust can be time consuming and physical. Anyone who has ever done cast iron garden fences or large-scale derusting work with a scalers worked or with the Sandblaster, will know the effort. But there are also small-scale derusting work that cannot be done with heavy equipment or that would cause more damage than good. Here you get to your goal with the sanding block and sandpaper or possibly with the Angle or a rotating wire brush as Drills- Essay. On the other hand, a is much more elegant and simple Rust converter spray, also called rust converter. Incidentally, it is not only available as a spray, but also as a liquid or brush or gel. Our Rust converter comparison of would like to introduce you to this simple process for derusting vehicle parts etc.

Top product: rust converter at Amazon

Brunox 1813002 epoxy rust stop / rust converter, 400 ml
476 Reviews
Brunox 1813002 epoxy rust stop / rust converter, 400 ml
  • High penetration into the rust pores
  • Rust neutralizer
  • Epoxy primer
  • Roughening brush
  • 400 ml

Rust converter mode of operation, simply explained

Oxygen, moisture or acids are poisons for iron or steel. Both metals protect themselves from this by developing an oxide layer of rust. If the rust is not removed, more and more oxygen penetrates the porous surface of the grate, which also retains moisture and encourages renewed rust formation. However, if a rust converter is used, this layer must first be removed mechanically, depending on the condition with the tools mentioned above. Rust converters cannot of course convert the rust back into shiny metal, but they can create a dull dark gray to black iron compound. The grate surface, which has been converted into iron sulfate, can then be filled, sanded and painted.

Rust converter note:

Do not confuse rust converters with rust inhibitors. While the rust converter converts existing rust into a solid layer, the rust inhibitor is there to protect a surface from rust formation.

What is rust converter made of?

The active ingredients today are mostly phosphates and phosphoric acid, which convert the ferric oxide to water and ferric sulfate. A chemical process, the result of which is a solid layer that can be painted over. Various aids and additives support the conversion. These include surfactants, reaction accelerators, degreasers and thickeners. Many rust converters are also mixed with a primer or with lacquer.

Rust converter note:

You often hear that cola is also suitable for derusting. It's not entirely by chance. Cola also contains phosphoric acid, but the acidity is quite low and nobody would think of bathing their car in cola.

What are rust converters used for?

Come today Rust converter experienceIt is mainly used for the repair of vehicles. They are also very helpful for construction machinery, ships or metal fences. Small rust spots on the bike or the Kids scooter also benefit from Slide and Longboards included. Also many garden tools like that Lawn tractor or the Snowblowerthat are heavily exposed to the weather are quickly freed of rust spots and can be protected from further rusting thanks to a rust converter.


Spray, gel or would you prefer a liquid?

The consistency of the various rust converters is different and depends on the intended use. That's why you can't say which one the best rust converters because each has a different purpose. These are commercially available in liquid form, as a spray or gel.

  • As a spray

The application of a rust converter spray is very simple and is ours Rust converter rating suitable for hard-to-reach places. The spray is sprayed as an aerosol and has good creeping properties. It also gets into cavities and all other hard-to-reach places. This is why it is particularly suitable for cavities in the automotive sector, where you don't want to remove everything to get to the rusty areas. In order to get a reliable job, several spray coats are usually required, each of which has to dry off first.

  • + good for hard-to-reach places
  • + good creeping ability
  • - bad for vertical surfaces and overhead work
  • - usually several spray coats necessary
  • As a gel

The use of gel is ours Rust converter buy recommendation for use on vertical surfaces. The viscous state of the money allows it to adhere well and prevents it from dripping off. Gels can be applied with a spatula and then spread with a brush. Larger areas can be processed particularly well with it. Gel is also suitable for selective rust treatment, especially when it comes to protecting adjacent surfaces from the rust converter.

  • + good for vertical derusting
  • + good with targeted selective treatment
  • - bad in hard-to-reach places
  • In liquid form

According to Rust converter testimonials from customer reviews, a liquid rust converter is the most popular. It is applied with a brush or roller and can also be sprayed. Water-based products can even be painted on damp metal and the rust converter will creep under joints or overlaps and under cracked paint.

  • + good for large areas
  • + good creeping ability
  • - bad for vertical surfaces and overhead work

Rust converter note:

No matter which rust converter You use, before it is applied, the surface must be cleaned of dirt and grime. Coarse rust must be removed with a wire brush, larger areas with Sandblaster or the scalers. If the coarse rust is not removed, even a rust converter cannot help prevent further rusting.

Rust converter with primer

You can buy rust converters with and without a primer. If a rust converter is used without a primer, an appropriate primer must be applied afterwards so that the surface can be painted later. If a primer is included, this intermediate step is saved. However, the primer has advantages and disadvantages:


Primer does not have to be applied separately

easy to apply


The exposure time is extended

Primer is mostly black

Rust converter note:

Rust converters only work on iron and steel. Other metals such as aluminum, zinc and tin or copper form a very dense oxide layer on the surface, which does not lead to progressive oxidation.

Our rust converter purchase advice

Before you sign up for any Buy rust converter, we would like to familiarize you with the most important purchase criteria.

  • Which is the best rust converter?

When does a rust converter make sense? A rust converter converts a layer of rust into a solid iron compound and can also protect against further rusting. However, a rust converter cannot work miracles, because once an object has rusted properly, it should Angle or another mechanical method of rust removal.

Rust converter note:

A rust converter only makes sense for so-called flash rust, which occurs when an object starts to rust and not when the material itself starts to rust.

  • How much content and what consistency do I need?

Rust converter does not have to be bought in advance if it is only needed occasionally. It is better to buy a rust converter in the size and consistency for the work involved. Sprays are usually sold with little content, liquid goods up to the size of canisters. Choose a gel for vertical or overhead surfaces, the spray for inaccessible areas and the liquid rust converter for all other work. A is also suitable for the very small rust stain cheap rust converterwhich is offered in pen form.

  • Do I need a primer function?

Many rust converters are offered with a primer. So you can save yourself a step and paint immediately after drying. However, it is better to do without it for large areas, even if several jobs are necessary. Then the rust converter needs a much longer drying time than the additional priming would have taken.

  • Where can I buy rust converters?

You can buy rust converters wherever it looks like a hardware store. Obi, Bauhaus or Hornbach, it doesn't matter, you will definitely find it here. If you want to save yourself the way, you will also find it on the Internet best rust converter Find. At the Buy rust converter online You can also benefit from reviews and experience reports from other buyers. A look at the customer reviews is sometimes very helpful. Please read the negative reviews as well, as they explain why some choices have turned out to be a flop.

  • Who makes the best rust converters?

Rostio, Nigrin or Fertan rust converter head the list of the most famous. But many other manufacturers also offer products of the same quality. Are only representative for this Würth rust converter called, Brunox, Presto or Hammerit.

Rust converter bestseller on Amazon:

OfferBestseller no. 1
NIGRIN 74049 rust brake 200 ml
  • durable
  • Works automatically
  • Effectively stops any rust
  • 200 ml
OfferBestseller no. 2
Brunox 1813002 epoxy rust stop / rust converter, 400 ml
476 Reviews
Brunox 1813002 epoxy rust stop / rust converter, 400 ml
  • High penetration into the rust pores
  • Rust neutralizer
  • Epoxy primer
  • Roughening brush
  • 400 ml
OfferBestseller no. 3
Fertan 22601 rust converter, 1 L
742 Reviews

Rust converter advantages / disadvantages


Turns rust into a solid iron compound

prevents further rust

2-in-1 products suitable as a base for paint

can be used quickly

After a short waiting period of usually 3 hours, it can be processed further


There is no shiny metal

Solo products require a primer before they can be painted

Answers (FAQ) to the rust converter comparison

Even if rust converters are based on dispersion or water, they are nonetheless harmful to health and the manufacturer's instructions, safety data sheets and application instructions must be observed when handling them.

Rust converters react with the rust in a chemical process, rust inhibitors are applied to a rust-free sheet to prevent rusting.

Unfortunately, the Stiftung Warentest has not yet published a rust converter test report. That is why we cannot present you with such a test winner.

The exposure time may vary depending on the manufacturer. However, you should always be patient. It is best to wait at least 12 hours, better still 24 to 48 hours, before taking any further steps.

The disposal of rust converters is only possible via the collection points for hazardous waste. Find out more about your community. There, acceptance dates for hazardous waste are shown every few weeks.

A rust converter can be kept indefinitely in a sealed container as long as it is stored frost-free. The rust converter has a shorter shelf life with oxygen supply and should therefore be stored in such a way that air supply is excluded.

The rust converter price varies depending on which product is chosen. To get a guideline, you should use a rust converter price comparison on the Internet. The price per 100 ml or per liter is always specified here.

Most rust converters will dry in about 30 minutes. This means that another coating with rust converter can then begin. The drying time for painting should be at least 24 to 48 hours.

Conclusion on the rust converter

A rust converter is a good tool to preserve rusted components. Any lightly rusted car, motorcycle or bicycle does not have to be replaced with something new right away; with the use of a rust converter, it can even be filled, sanded and repainted afterwards. Always cheaper than replacing the parts.

4.8/ 5 off 48 Reviews]

Rust converter test & comparison purchase advice

Good suggestions for you to help you find the right one Rust converter Select product from our test or comparison offer

My name is Lisa and my children are already out of the woods. I am a balanced person and I attach great importance to a beautiful apartment, a well-kept garden and of course I like to travel. I like to cook, live well, go jogging and do a lot of cycling.

That's why it was very important to me as an author to give you this Rust converter comparison imagine. I have five of them Rust converter bestseller chosen and I hope you like it as much as I do.

I have not made it easy for me and made a lot of research for you, collected surveys and opinions from customer reviews and at the Stiftung Warentest after a possible Rust converter test Watched.

To give you your purchase decision and the Rust converter selection To facilitate this, I have also written this informative guide text and listed the most important purchase criteria for you. Of course, you will also learn a lot about the pros and cons and some tips and tricks on the subject.

I would be very pleased about your response to my article. Write me your own experiences. A line is always open for you.

Further links and sources too Rust converter

Further information about our article can be found under Wikipedia , a platform of the most popular free encyclopedias on the Internet. Here you will learn a lot of interesting facts and information about our selection on the Rust converter to look up.

If you are on the YouTube video portal real and concrete information about our products Rust converter search, this source of information gives you direct access to the appropriate video clips.

On the platform of Amazon You can discover almost every product you want to buy online. So you will find this too Rust converter Product on Amazon. At the same time, many more articles can be found for your search on this portal.

Ebay is one of the world's largest online marketplaces where you can also discover our articles. Next to the Rust converter from commercial traders you will also find the Rust converter as used items from private sellers

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