Antirust protection - long shelf life for metal objects

Antirust protection - long shelf life for metal objects: long

Prevent rust - apply rust protection

Important before treatment is a fat and dust-free, as well as dry surface. Only then is the surface load-bearing and can best be primed with a primer that already contains rust protection. Earlier it was often taken for red capes, which there are now also lead-free. Then it is painted twice with a metal protective lacquer according to the manufacturer's instructions.

Craftsmen who want to tackle the challenge can work with 2-component systems made of 2-component primer and 2-component paint. However, this requires precision and practice if the resulting, more durable results are to be achieved.

Whether bicycle, metal railing, patio furniture, fence or other metal objects: A good anti-rust protection preserves the value, preserves the appearance and prevents unpleasant restoration work.

As is often the case, prevention is the best way to reach the goal with little effort. Well-built corrosion protection seals metal surfaces very effectively against the effects of oxygen, moisture and emissions. As long as the substrate is free from corrosion and the protective layer remains intact, rust has no chance.

Even if the first small spots of rust are visible, you can quickly meet them with the right means and repair the protective layer again. If the metal is already attacked, a little more effort is needed to stop the progression of corrosion degradation.

Rust is not the same as rust

rust is basically nothing else than incipient corrosion that is still on the surface. It can be easily removed or even satisfactorily treated with rust remover or rust converter before the material is attacked.

pitting can occur in so-called passivated metals, such as stainless steel and in various metal alloys. He is insidious, as the rust has already spread behind supposedly very small holes in the depth.

Antirust protection - long shelf life for metal objects: objects

Well maintained and sealed, rust on your bike has no chance.

Normal rustor surface rustdevelops on ferrous metals over the entire surface from outside to inside. He dissolves the material and it peels off. This can - for example in structural steel, open steel girders u. Ä. - lead to static problems. In other cases, such as railing and posts are expected in the long term security risks.

patina is more of a word creation. This is merely meant a deliberate corrosion, as it was a long time in garden decoration and other decorative items popular and still is. It can be deliberately used, promoted and largely stopped.

Not everycorrosion is rust, but rust is a kind of corrosion. For example, aluminum corrodes with a self-protective layer. The process stops by itself as soon as the layer is so thick that no oxygen or moisture reaches the material.

contact corrosion arises, where a noble and base metal have direct contact and humidity comes to it. In such places, metal protection is essential to prevent corrosion damage to the less noble metal. Often, such a constellation can be easily avoided. Example: Do not use any screws made of more noble metal, ie no stainless steel screws for a raw steel part or no copper seal on a screw that should hold an aluminum sheet.

atcrevice corrosion it is, as the name already suggests, rust on bottlenecks, which dry badly and where rust protection may not have come. This is often observed at welds. So it is all the more important to treat such places very carefully.

Which metals protect against corrosion?

In principle, all rusting metals, the so-called ferrous metals, should be protected against rust. Even with metals whose corrosion is harmless to the metal, this may be undesirable. For example, the green corrosion in copper or the dark gray, discoloring coating on unprotected aluminum (use special adhesion base), which is often not wanted for optical reasons and can be prevented by means of a metal protective coating.

If so-called stainless metals, stainless steel or chrome-plated, galvanized and painted parts have rust or rust due to surface damage, they should be removed and the metal re-protected.

Antirust protection - long shelf life for metal objects: long

Remove loose rust first and create a clean, grease-free surface.

Antirust protection - long shelf life for metal objects: long

When painting, work from top to bottom and do not apply the paint too thick.

How often is rust prevention necessary?

Basically, corrosion is a rather slow process. Anyone who reviews everything once a year and acts as needed protects his metal objects sufficiently. In a covered, protected location, this is even less necessary.

Water, salt and acids can accelerate the process. Therefore, you should adapt your test intervals to the environmental conditions.

Remove rust, convert rust or paint on rust?

Antirust protection - long shelf life for metal objects: long

Decorate ornate elements with spray. Paint spray reaches even the smallest gaps.

In principle: Only if the existing grate is completely removed before a metal object is newly provided with rust protection, the rust protection can be perfectly effective. However, it also applies that there is a reasonable effort for everything. Therefore, the workload and the used rust protection variant should be adapted to the object. Sometimes rusty areas are difficult to reach or even want to preserve the antique look.

If the object to be treated has a very smooth surface, which is located in the field of view, it is advisable to completely repaint it. Here's the effort with derust, sand, prime and varnish Although very large, the surface then shines in a new shine and again provides a smooth surface.

On heavily decorated and intricate railings, garden chairs or decorations, it is hardly possible to rid every little gap from the rust. Here it is advisable to remove this roughly and then with aRust converter to treat.

Antirust protection - long shelf life for metal objects: metal

Under dissolved paint rust can form, therefore treat even the smallest rust spots immediately.

The new paint application should be done with a paint spray, since so even the smallest gaps can be achieved. Likewise, a rust converter can be the first quick help. If the first rust spots on large objects, such as a garage door or in non-visible areas, such as the welds of the garden bench discovered, the effort would be far too great to repaint the entire area. The rust converter can be applied directly to these places and prevents further rust damage.

If it is massive metal objects where the surface structure is secondary or even the attacked and rustic-looking surface is even preserved, is a"directly on rust" protective varnish the optimal choice. Here only the loose rust must be removed and then the paint can be applied. The surface texture is preserved or can be highlighted with a hammered look.

Which anti-rust primer or anti-rust paint is the best?

Finding the best antirust agent does not seem easy with the breadth of the product. Last but not least, one's own taste and craftsmanship, as well as the nature of the item to be protected play a significant role in the choice.

  • Antirust protection - long shelf life for metal objects: antirust

    Even though small treated rust marks often look unattractive, you should tackle them to prevent major and permanent damage.
    The classics arePrimer and lakes for the outdoor area, which need a special preparation but create a surface "like new".
  • Particularly easy to work with so-called3-in-1-protective metal coatings ordirectly on rust-resistant metal coatings, These products also contain rust converter, primer and paint. They come in many colors and with special effects, such as "directly on rust-varnish" hammer blow from the tin or even as a color spray.
  • There are also special paints, such asZinc Repair Spray - a kind of cold galvanizing from the spray can. Whiledirectly on zinc paints, a surface seal for galvanized, copper, aluminum and bronze pose.
  • Creative DIY fans donate rusty things from the flea market or from the cellardirectly on rust spray in gold a new shiny appearance in the garden. Or do with a candirectly on rust spray black from some large tin cans a utensil for one or the other season.
These examples show that there is no "best antirust treatment" or antirust paint. The decisive factor is the optimum matching to the metal to be treated, the surface structure and not least the desired optical aspect.

Tips and tricks for rust protection and rust treatment


  • Check your metal objects regularly, then major damage is easy to avoid and with regular care in any case, even in the long term.
  • Protect the floor outdoors too.
  • In order to reduce dust development outdoors, it can help to moisten the floor with water around the part to be painted.
  • Do not use used sandpaper. The transfer of base metal dust can even promote corrosion.


The information page was created in close cooperation and pictures by Hammerite

Antirust protection - long shelf life for metal objects: metal

HAMMERITE is a trademark of Akzo Nobel Deco GmbH, part of Akzo Nobel, a leader in the paint and coatings industry. HAMMERITE, a synonym for metal protection, is one of the "Brands of the Century" in Germany and offers an effective solution for almost all indoor and outdoor metal objects, including metal protection lacquer "Direct on rust", zinc spray, rust protection primer, rust remover, Removers and blockers as well as cleaners.

  • Use coordinated products from one manufacturer.
  • Follow the manufacturer's instructions on the packaging.
  • Wear worn-out clothing and shoes or work clothes.
  • Cut a hole in the middle of a small household sponge and put the brush through it, catching paint that drips down.
  • Too cheap brush hair like, which is annoying.
  • Do not paint in full sun or on a windy day, so that the paint on the surface does not dry out too quickly and can not harden sufficiently. It is best to have covered, mild days in spring or autumn.
  • Never apply 2-component products to 1-component primer or varnish, they may be dissolved.
  • Work with smooth, even movements for a beautiful finish.
  • Do not apply too much paint at once.
  • For larger parts, it is better to use a foam roller and roll it slowly and evenly so that no air bubbles form.
  • Thoroughly clean your brushes and tools and let them dry well
Author: Christiane Baldwin - Online Editor and Home Improvement

Photo Credits:

  • Cover picture: (original picture): MichaelGaida, license: CC0 Public Domain / Pixabay
  • all other pictures: © Akzo Nobel Deco GmbH -

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Video Board: Removing Rust with Vinegar and Salt