Rust removal - methods and effective rust removers
Fortunately, time-consuming and harmful methods of removing rust are no longer necessary. With Tribotec's VCI rust removal technology, rust is effectively removed in a way that both saves time and reduces the impact on the working environment and the environment.
This guide explains what rust is and why it occurs, what rust removal methods are available, and how to choose the right method to remove rust and surface rust.
What is rust and why does it occur?
When metal containing iron (such as steel) is exposed to a combination of oxygen and moisture, it eventually rusts.
In other words, rust is a natural chemical process that breaks down iron through contact with oxygen and moisture.
The terms corrosion and rust are often used as synonyms. It is true that rust is a form of corrosion - but the difference is that corrosion affects a wide range of materials, while rust only affects iron and iron alloys (such as steel).
Different methods of rust removal
As rust causes billions of euros worth of damage to industry every year, rust removal is essential for any business working with iron. Failure to address rust in a timely manner can lead to reduced strength, operational disruptions and, in the worst case, the loss of usable materials.
The most common methods for removing rust and surface rust are:
Mechanical rust removal
Involves physically removing rust from the metal. This is usually done by:
- Grinding
- Wire brush
- Blast ring
The method is effective when rust needs to be removed quickly, especially in cases of heavy infestation. The method is suitable for industrial environments but is less suitable for sensitive materials.
Chemical rust removal
Chemical rust removal is what we do at Tribotec. Our range of VCI rust remover consists, inter alia, of water-based gel and liquid in spray form that dissolve or react with the rust.
The advantages of chemical rust removal are that it reaches even hard-to-reach surfaces and is gentler on the base material than mechanical methods. It is often used to remove rust from iron or other metals without affecting either dimensions or surface quality.
Electrolytic rust removal
Electrolytic rust removal is a method where electricity is used to reduce rust. The component is placed in an electrolytic solution and connected to a power source.
It is particularly useful for parts with complex geometry or when you want to preserve the original surface. It is often used in renovation or restoration rather than in continuous production.
Rust removers and rust inhibitors - what should you choose?
Rust removers are used to loosen rusted parts, such as screws or nuts. The solvent penetrates the bond, lubricates and breaks down the rust so that the parts can be moved again - but it does not remove the rust from the surface.
A rust remover, on the other hand, is designed to actually remove rust from metal. Through a chemical reaction, the rust is dissolved or transformed, restoring the surface and preparing it for further treatment or protection.
For simple needs, such as maintenance or repair, a rust remover is often enough to quickly get a stuck part moving. However, if there is visible rust on metal that needs to be removed, a rust remover is a better choice.
How to choose the right method for rust removal
To choose the right method, it is important to take into account:
material
Different metals react differently to chemicals and mechanical impacts.
The extent of the rust
Surface rust often requires simpler treatment, while heavy rust may require more aggressive methods.
Precision vs power
Mechanical rust removal is powerful but less precise. Chemical rust removal is more controlled and gentle.
At Tribotec we offer a range of products that help both prevention and efficiently removes surface rust and oxidation from iron.
How to remove rust from metal?
Methods such as mechanical, chemical or electrolytic rust removal are used to remove rust from metal.
At Tribotec we offer a wide range of environmentally friendly corrosion protection products (VCI) and corrosion inhibitors that protect the metal throughout the production chain.
ICV‑solutions work by creating a protective layer around the metal that prevents oxidation and extends the life of the material.
Our range includes, among others:
ICV‑paper products for all metal components
ICV‑grasp‑ and oil-based rust protection
Degreasing, cleaning and rust removal products
Read more about removing rust from metal here.
How to prevent rust after treatment
After you have successfully removed rust, the next step is to prevent rust in the future.
Common methods of preventing rust after treatment include:
- Corrosion protection - protective layer that prevents moisture and oxygen
- Surface treatment - for example, painting or galvanising
- Lubricants - creates a protective barrier
- VCI (Volatile Corrosion Inhibitors) - emits protective substances in closed environments
Preventing rust is often more cost-effective than having to repeat rust removal.
Common mistakes in rust removal
One of the biggest mistakes in rust removal is to see it as a single action - instead of part of a larger process. Experience from industry shows that a lack of holistic thinking often leads to both recurring rust problems and unnecessary costs.
Tribotec has been working with Sandvik SRP AB (Sandvik Rock Processing), one of the world's leading manufacturers of rock crushers, for over 10 years. Sandvik transports metal components all over the world, which are often subject to corrosion during transport.
Jörgen Mikkelsen, process expert in surface treatment, who runs the corrosion protection project at Sandvik, says this about the co-operation with Tribotec:
We chose Tribotec because they have a good product that works on all metals. Tribotec saves us installation time, cleaning time, protective equipment and gets rid of chemicals. And once you've tried this system, you don't want to go back to the old methods.
Read more about Tribotec's environmentally friendly corrosion protection for Sandvik products here.
Do you need help with rust removal?
Need help with rust removal, or want to know which VCI rust remover works best for you? At Tribotec, we offer a range of products that help both preventing rust and efficiently removes surface rust and oxidisation from metal.
If you need help choosing the right solution for your application, you are always welcome to contact us!
FAQ - Frequently asked questions about rust removal
How to remove rust from metal?
How to remove rust from iron?
What is the best rust remover?
Can you remove rust without chemicals?
How to prevent rust from coming back?
How to remove surface rust?
What is the difference between rust remover and rust removal?
