Surface treatment of metals is our core competence. Surface treatment is used to improve corrosion resistance and visual appearance by various methods such as painting, acid pickling and galvanizing. The choice of surface treatment method depends on the material from which the workpiece is made and the final operating environment where the product is used.

Pre-treatment is the most important step in surface treatment process. During the pre-treatment, the surface is cleaned and roughened so that the paint or other coating adheres firmly to the surface. Mostly pre-treatment is done by washing the dirt and grease off the surface, after which the surface is shot blasted, i.e. sandblasted in folk language. Before applying the paint or other coating, the surface needs to be completely clean from any dust and blasting shots. Otherwise the final corrosion resistance will be significantly reduced. The quality of the surface treatment is ensured after each step by various methods, such as dust tests, dry film thickness measurements and tensile tests.

We can perform surface treatment either on site as a project or we can transport your workpieces to the one of our nearest surface treatment shops.

High-quality surface treatment:

  • Improves the durability
  • Prolongs the lifespan
  • Reduces the frequency of service and maintenance
  • Enhances the visual appearance


We have altogether over 20 surface treatment shops, in which we guarantee high quality, reliable and flexible surface treatment operation close to our customers. Each of our surface treatment shops differ a little bit from one another but the most common services are washing and degreasing, shot blasting with steel grit and wet coating. Depending on the location and the customers’ needs, we also perform e.g. powder coating, acid pickling, fireproofing and thermal spraying.

At most of our locations we have outsourced our customer’s surface treatment process. Some of these surface treatment shops are tailored just for the needs of a specific customer, but most of the time the main customer only takes a part of the capacity and thus we can also perform surface treatment for other customers at the same surface treatment shop.

With the close co-operation and continuous conversation, we can actively follow the needs of our customers and quickly optimize the process. For example, during production spikes we will bring more staff from our other surface treatment shops to ensure security of supply.

We perform surface treatment in accordance with various standards. Part of our surface treatment shops are NORSOK qualified, which means that we can perform surface treatment according to strict Norwegian NORSOK standard. Some of our surface treatment shops are CE approved / FI certified according to EN-1090 standard, and these locations have a premission to surface treat CE marked products.

Depending on our customers' needs, we also obtain the necessary approval for those surface treatment shops that doesn't yet have it. FSP's FROSIO qualified inspectors ensure that the quality of the surface treatment remains in line with the standard during every stage of the work.


Our project personnel and mobile equipment is always ready to leave to any destination determined by the client regardless of time and place. In project sites, surface treatment is carried out using the same methods and following the same quality standards as in our surface treatment shops.

FSP has been a strong partner in project work since its foundation. The company started operations in Neste Oil’s oil refinery building project in 1964 and thus can safely claim to be a surface treatment pioneer specifically in the field of project work.

Offshore forms a special area in FSP’s project business. Humidity of water areas and the sunny and salty oceanic climate pose a challenge to offshore projects and make the working conditions and requirements very demanding. Following NORSOK standard in both working and inspection phases is an essential prerequisite for offshore industry, to which we will respond with a number of qualified professionals.

According to our customers, we have been able to fulfil their expectations related to delivery reliability and schedules as well as service and product quality even in the most demanding locations already for several decades.


Henri Kiminki
Business Unit Manager
+358 50 414 5170

High-pressure washing removes the dirt and grease from the product surface before the shot blasting and surface treatment process.

Acid pickling is a pretreatment method for so-called acid resistant steels, in which the surface impurities are removed with an acid treatment when other methods are not suitable.

Acid pickling is done either by dipping the object in a pool (acid dipping) or by spraying acid on the surface in a painting shop or in a project location.

In shot or sand blasting, the surface is cleaned of rust, mill scale, old coating or any other impurity. After this, blasting material is blown against the surface under high pressure. The surface is roughened to ensure adequate adhesion of the new coating.

There are various blasting materials available for different purposes, such as:

  • Sand
  • Steel grit
  • Glass bead
  • Quartz
  • Slag

In powder coating process, plastic powder is sprayed electrostatically onto the product surface. After this, the object is heated, and the powder melts to the product surface. The coating film reaches its final strength after it has cooled. The drying is done in a curing oven.

Materials used in fireproofing swell during heat exposure, slowing down the deterioration of the underlying material in the event of fire. Without fireproofing, steel temperatures will rise to the critical 450-600 °C in about 10 minutes. The strength of the steel decreases significantly, resulting in a situation where the structures begins to fail. Fireproofing extends this critical time up to 4 hours, ensuring that people can safely evacuate.

In thermal spraying, a solid material, usually metal, is melted and sprayed in the form of fine mist onto the product surface with a high pressure to form a wear resistant coating on the surface.

The method can used instead of e.g. hot-dip galvanization if the product cannot be moved or dipped in a sink.

We provide floor coatings in various destinations, such as paper mills, factories and sports halls.

Extra resistant coating is suitable for almost any surfaces. It is very fast to work and the surface is dry to the touch from 5 to 10 seconds.

Is particularly aimed for products which must endure high temperatures both mechanical and chemical stress in demanding conditions.

Efective coatings:
Efective coating offer the surface some special appearance or feature. For example stone effect for a lighting pole or a surface profile which prevent stickers from adhering to the surface.

Power coating method among of others for public areas or product of health care sector. The coating is also a bit flexible and good shock resistant.

Typically used for warehouses or for example railway carriages where the products cannot be in contact with moisture.

Sound insulation:
Sound insulation coating is damping the sound, in addition to that it protects against to corrosion, condensation and mechanical stress. The material is light, working time saving is 80 % comparing to the traditional methods. Typically used for vessels, motors, transformers, generators, engine rooms, snowploughs etc.

Thermal insulation:
Thermal insulation coating insulates from hot and cold temperatures, in addition to that it protects against to corrosion, condensation and mechanical stress. The material is light, working time saving is 80 % and it is more easier to maintain comparing to the traditional methods.  It saves energy costs, cools down the surface with temperature as high as 190 degrees Celsius. Typically used for oil- and chemical refineries, storage tanks, pipelines etc.

In addition to these we have implemented several other special coatings and methods for special points of interest.
Do not hesitate to ask more.


FSP started to offer specialized engineering services in 2010 to meet the shortage of surface treatment control and consulting services. At the same time, we also wanted to start offer our surface treatment engineering expertise outside of our company.

Based on customer feedback, we have successfully managed to provide our engineering services both domestically and internationally in countries such as Indonesia, China and Uruguay.

Our goal is to continuously develop new ways of working and to renew existing surface treatment methods.

For example, we will check the efficiency and the ability to produce quality of the entire surface treatment process, and then optimize its performance in the best possible way. We can also design and implement a completely new surface treatment line to meet current or future needs.

Engineering services are intended for every industrial company that wants to focus on their core competency, increase productivity, and lower overall costs.


In addition to surface treatment services, we also take responsibility for various value-added services such as sub-assembly, accessories, packaging and delivery to the end customer.

Our idea is that the products no longer need to be returned to the machine shop or factory for finalization after the surface treatment, instead they can be delivered as ready-made products directly to the end customer. This eliminates one step from the process, which saves our customers time and they can focus entirely on their core competency.