We offer inspections of anti-corrosion coatings carried out by certified inspectors

We perform inspections based, among others, on the following standards:

ISO 12944 - Corrosion protection of steel structures by protective paint systems

This standard defines a method for evaluating the performance of protective coating systems in different corrosive environments.

ISO 12944 is one of the key standards for corrosion protection of steel structures. It classifies corrosive environments on a scale from C1 (low corrosion exposure, e.g. interior spaces) to CX (extreme conditions, e.g. marine and industrial environments). The standard also defines requirements for documentation, coating systems, their durability, application methods, and quality control.

ISO 19840 - Measurement and acceptance criteria of dry film thickness on rough surfaces

The test described in this standard enables the measurement of coating thickness using magnetic methods on steel surfaces.

The thickness of a protective coating is one of the key parameters affecting its corrosion resistance. ISO 19840 defines the principles for measuring coating thickness using magnetic methods with either manual or automated devices:

Magnetic induction methods – used for measuring non-magnetic coatings on ferromagnetic substrates,
Eddy current methods – used for coating thickness measurements on non-magnetic substrates.

ISO 4628 - Assessment of coating degradation

The test described in this standard allows for the assessment of the degree of degradation of protective coatings. ISO 4628 defines methods for the visual evaluation of protective coatings in terms of various types of defects, such as:

Blistering – assessment of blister formation in the coating,
Rusting – assessment of the degree of rusting on coated surfaces,
Cracking – presence of microcracks that may lead to accelerated degradation,
Delamination – separation of the coating from the surface,
Chalking – oxidation of the coating, which manifests itself in the form of dust on the surface.

ISO 8501 - Visual assessment of surface cleanliness

The test method specified in this standard enables the evaluation of surface cleanliness before the application of protective coatings.

The standard defines the cleanliness classes of steel surfaces before the application of anti-corrosion coatings. Among other:

St2 – manual or power tool cleaning,
St3 – very thorough power tool cleaning,
Sa1 – light abrasive blasting,
Sa2 – thorough abrasive blasting,
Sa2,5 – very thorough abrasive blasting.

ISO 8502 - Surface cleanliness assessment methods

The tests described in this standard allow for the examination of the presence of contaminants on the surface before the application of anti-corrosion coatings.

The ISO 8502 standard includes a series of tests to assess the level of surface contamination that can negatively affect the adhesion and effectiveness of protective coatings. The most commonly used methods are:

Bresle test – measures the content of surface-active salts that can cause under-coating corrosion,
Dust Tape Test – evaluates the level of dust on the surface and its potential impact on the application of the coating,
Humidity and dew point test – determines the atmospheric conditions under which the coating should be applied to avoid adhesion problems.

ISO 8503 - Surface roughness characteristics of steel substrates after abrasive blasting

The test described in this standard allows the surface roughness to be examined before the coating is applied. Surface roughness is crucial for the adhesion of the coating to the substrate.

ISO 8503 specifies methods for measuring the roughness after abrasive blasting, such as:

Testex film replica test – enables precise reproduction and measurement of surface profile,
Mechanical measurement with roughness testers – allows to determine the average height of the roughness profile,
Replica tape method – surface comparison against standard reference samples.

ISO 16276 - Evaluation and acceptance criteria for adhesion/cohesion of the coating

The test described in this standard allows the adhesion of protective coatings to be tested using the pull-off method and a grid of cuts.

The ISO 16276 standard covers comprehensive methods for evaluating the adhesion of protective coatings, combining two key tests:

Pull-off test – determines the coating's adhesion to the surface,
Cross-cut test – mainly used to assess thin-film coatings.

ASTM G62-22 – Testing the integrity (holiday detection) of protective coatings

The test described in this standard allows for the detection of microcracks, pores and leaks in protective coatings using the low-voltage method.

The low-voltage test allows for the detection of defects in protective coatings without the risk of damaging them. It is mainly used in coatings with lower electrical resistance, such as epoxy, polyurea and polyurethane systems used in the protection of pipelines, tanks and industrial structures.

We have repeatedly repaired new coatings which, due to application mistakes, stopped fulfilling their function within a year of application.

Over many years, we have gained practical knowledge about the most common problems and know what to look out for in order to detect potential irregularities before they become a costly problem.

By combining practical knowledge of coating degradation with advanced, certified knowledge of norms and standards, we can guarantee a reliable inspection that will precisely determine the actual condition of the coating.

Our inspection will not only detect the problem, but also indicate its causes – from application mistakes, through the natural degradation process, to adverse changes in the coating environment.

We specialize in anti-corrosion repairs, which gives us a deep understanding of which systems degrade, how quickly, and why.

Coating inspections are a key element of effective corrosion protection.

Regular inspections not only confirm the quality of newly applied coatings, but also monitor their degradation process. This allows damage to be detected in right time and decisions to be made about the need for repairs, minimizing the risk of costly failures and extending the lifespan of the structure.

Depending on your needs, the inspection can result in a detailed report including photographic documentation or even a video recording of the entire inspection process. This gives you a complete overview of the condition of the coating, including hard-to-reach areas that are usually impossible to access.