Cathodic protection, erosion protection and corrosion protection
- 120 years of experience
- Certified quality
- Sustainable technologies
JAKOB ALBERTSEN KOMPOSIT A/S
Effective protection against corrosion and wear in demanding environments
Are you experiencing problems with corrosion or erosion on structures and installations? Then you are not alone. Corrosion is one of the biggest challenges for steel structures in aggressive environments. Without proper protection, metal components can quickly degrade due to exposure to moisture, chemicals, temperature fluctuations and electrolytic processes.
At Jakob Albertsen Komposit A/S, we help companies in Denmark and abroad with advanced solutions within corrosion protection, cathodic protection and erosion protection that ensure maximum durability and extended life of critical structures.
Erosion protection in demanding environments
In many industrial and maritime installations, not only corrosion occurs, but also mechanical wear from particles, liquid flows or high flow rates. Here, erosion protection plays an important role in extending the service life of components such as pipes, pumps and tanks. By combining wear-resistant coatings, correct surface treatment and advanced materials, structures can be effectively protected against both corrosion and erosion.
JAKOB ALBERTSEN KOMPOSIT A/S
Corrosion protection according to ISO 12944
The international standard ISO 12944 defines the requirements for corrosion protection of steel structures and classifies environments from C1 (indoors, low corrosion risk) to C5 and CX (extreme environments such as offshore and chemical plants). A frequently used category is corrosion class C4 , which typically covers industrial environments and coastal areas with moderate to high salt exposure. The choice of coating system depends on:
- Exposure time (short, medium, long or extra long life up to 25+ years).
- Environmental aggressiveness (humidity, salinity, chemical exposure).
- Requirements for mechanical wear resistance and UV resistance.
Modern methods of corrosion protection
Effective corrosion protection requires a holistic approach, where material selection, surface preparation and coating systems are tailored to the specific operating conditions. The primary techniques include:
1. Surface treatment
To ensure optimal adhesion of coating systems, thorough mechanical or chemical pre-treatment is required:
- Steel blasting (Sa 2½ – ISO 8501-1) removes rust and contaminants, which increases the adhesion of the coating.
- Sponge-Jet blasting for sensitive areas
2. Protective coating systems
Corrosion protective coatings act as a physical barrier against external influences. The most commonly used systems are:
- Zinc-containing primers (zinc epoxy or zinc silicate) that provide active galvanic protection.
- Epoxy coatings, which form a chemically resistant and mechanically strong surface.
- Polyurea , which provides a very durable and flexible coating with high chemical and impact resistance in demanding environments. Can also be included in solutions for erosion protection.
- Polyurethane and polysiloxane topcoats for UV resistance and long life in aggressive environments.
- Fusion Bonded Epoxy coatings used in chemically demanding environments for maximum resistance.
3. Cathodic protection
In particularly corrosive environments, such as offshore and marine installations, cathodic corrosion protection (CP) is used to neutralize corrosion currents. This is done either by:
- Sacrificial anodes (galvanic protection), where a more reactive metal, such as zinc or aluminum, corrodes instead of the steel.
- Impressed current systems (ICCP) where an external electrical current prevents metal degradation.
How much does cathodic protection cost?
The price of cathodic protection depends on several factors, including:
- The size and complexity of the construction
- The environment the installation is located in
- Materials and technical requirements
- Any special solutions or installations
Therefore, there is no single fixed price or standard prices for cathodic corrosion protection. If you want a specific assessment, you can always request a quote where we will review the task and calculate a realistic price based on your needs.
Corrosion types and mechanisms
Corrosion occurs as an electrochemical reaction where metal breaks down upon contact with an oxidizing agent, typically oxygen and water. The most common forms of corrosion include:
- Uniform corrosion : Even degradation of the metal’s surface, often caused by atmospheric moisture or chemical influences.
- Galvanic corrosion : Occurs when two dissimilar metals are in electrical contact in an electrolytic environment, resulting in accelerated degradation of the more reactive metal.
- Pitting : Local corrosion attacks that can lead to rapid perforation of the metal surface.
- Crevice corrosion : Occurs in narrow crevices where oxygen supply is limited, leading to acid formation and aggressive metal degradation.
- Erosion corrosion : Occurs when mechanical wear combined with corrosive media accelerates material degradation.
To combat these mechanisms, a combination of surface treatment, corrosion-inhibiting coatings, erosion protection and cathodic protection is used.
Do you have any questions or would you like a non-binding offer?
Contact us today for competent sparring and advice on your assignment.
JAKOB ALBERTSEN KOMPOSIT A/S
Optimal protection with Jakob Albertsen Komposit A/S
We provide custom corrosion protection systems that meet the highest industry standards. With our expertise, we ensure that your steel structure achieves maximum durability, reduced maintenance and proven protection against corrosion.
Contact us today on tel. 62202058 or write to mail@jakob-albertsen.dk for a quote or advice on the right corrosion protection system for your project.
Certified quality and high operational reliability
Three ISO standards and international accreditations ensure stable, documented quality.
Advanced niche solutions based on 120 years of experience
The combination of historical expertise and modern technology provides technically strong special solutions.
Innovative and sustainable coating technologies
Unique partnerships and a focus on low environmental footprint create effective and future-proof solutions.