Corrosion resistance testing for your materials and coatings

Chemical analysis Materials characterization Problem-solving
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Would you like to assess the corrosion resistance of a part, compare protective systems, or document product qualification? FILAB supports you in selecting the corrosion tests suited to your materials, their operating environment and your specifications, helping guide your technical and quality decisions.

Your needs: conducting corrosion resistance tests

Corrosion resistance testing: what does it involve?​

Laboratory corrosion resistance tests are essential for assessing the resistance of materials or coatings when exposed to corrosive environments. These tests help predict the service life and performance of materials under real-world conditions and select the materials best suited to specific applications.

Why perform corrosion tests on your industrial parts?

  • Evaluate corrosion protection before industrialization.
  • Compare surface treatments under defined conditions.
  • Document supplier qualification or a process change.
  • Verify performance criteria specified in a set of requirements.

Automotive fasteners, aerospace surface treatments, metal building components, or industrial equipment parts: each application involves specific requirements. 

The protocol is therefore selected according to the material, coating, operating environment, and test objective, in order to obtain results that support your technical and quality decisions.

Conduct corrosion tests on your materials and coatings

Coated metal components

Copper and aluminum alloys

Composites with metal inserts

Organic coatings or industrial paints

FILAB laboratory supports you in conducting corrosion resistance tests

Why choose FILAB for your corrosion resistance tests?

For more than 30 years, our FILAB laboratory has had the experience and specialized analytical facilities needed to support companies in the analysis and study of corrosion phenomena, including conducting corrosion resistance tests through tailored support.

What are the main corrosion resistance tests?

Salt spray testing

The salt spray test simulates an aggressive marine or industrial environment. A saline solution mist is sprayed onto the sample to observe the formation of corrosion. The standards associated with this test are ISO 9227 and ASTM B117.

This technique is primarily used to test protective coatings, paints, and metallic materials.

Humid atmosphere testing (humidity test)

With this technique, the sample is exposed to a controlled humid environment at a specific temperature, often at around 100% relative humidity.

The objective is to assess a material's corrosion resistance under prolonged exposure to humid conditions.

Cyclic corrosion testing

These tests reproduce cycles alternating between different environments (salt spray, humidity, drying, etc.). They provide a better understanding of material behavior when exposed to alternating environments. The standards associated with this test are ASTM G85 and ISO 16701.

Electrochemical testing

Electrochemical techniques such as voltammetry and potentiometry are widely used in laboratories for detailed analysis of reactions at material surfaces. These techniques make it possible to analyze the formation of passive films, the effectiveness of coatings, and the potential service life of a material.

Stress corrosion cracking testing

With this technique, the sample is subjected to mechanical stress in a corrosive environment to assess its susceptibility to stress corrosion cracking.

This test is essential for materials used in sectors where parts are exposed both to mechanical stresses and corrosive environments, such as aerospace or energy.

A testing program defined according to your industrial objectives

Qualify a part, compare protective systems or assess a process change: FILAB supports you in defining the corrosion tests suited to your objective. 

The protocol selection takes into account the material, coating, operating environment and requirements of your specifications. Exposure conditions and evaluation criteria are defined before testing. 

Not sure which method to choose? Tell us about your application so we can develop a relevant testing program.

Results to guide your technical and quality decisions

The observations and measurements recorded during corrosion tests are presented in a report and then interpreted against the agreed criteria. 

They enable you to compare the configurations tested, assess corrosion protection and identify areas requiring further investigation or corrective action. This gives you the information needed to document your qualifications and quality controls.

Why entrust your corrosion testing to FILAB?

For over 30 years, our FILAB laboratory has had the experience and dedicated analytical facilities needed to support companies with corrosion testing analysis, through a tailored service. 

FILAB combines expertise in metallic materials, surface characterization and electrochemical analysis to study the corrosion resistance of your parts and coatings. Depending on your needs, this complementary expertise makes it possible to enhance testing with targeted analysis for a better understanding of the behaviors observed.

From protocol definition to results interpretation, our teams support you according to your application and specifications. You benefit from the information needed to compare your solutions, document your quality controls and guide your corrective actions.

Our corrosion-related services

Material selection to help you control the service life of your products or installations

In what contexts are corrosion tests used?

FILAB laboratory offers salt spray corrosion testing services in the following cases:

Salt spray testing to validate a part’s compliance

Salt spray testing following surface defects, particularly on metal parts

Quality control of the surface coatings on your metal parts

DTRF 150608 tests

Abnormal failure of your metal parts (breakage, corrosion, surface defect...)

Testing in accordance with ISO 10289

FAQ about laboratory corrosion testing

How should corrosion resistance test results be interpreted?

Results are generally assessed according to visual and normative criteria: the appearance of white or red rust, formation of blisters or cracks, detachment of the coating, or mass loss. These observations are then compared with the performance thresholds defined in standards (ISO, ASTM) or customer specifications.

Our painted parts rust prematurely in coastal areas. How can we identify the cause?

A corrosion resistance test makes it possible to reproduce aggressive environmental conditions in the laboratory (salinity, humidity, UV radiation) and analyze the actual performance of the coating or surface treatment.

This helps detect application defects, material/coating incompatibilities, or insufficient protection in marine environments.

We need to approve a new supplier for galvanized parts: are corrosion tests mandatory?

Yes, in many sectors (automotive, rail, construction), corrosion tests are required as part of supplier qualification procedures.

They ensure that the level of corrosion protection remains compliant with the specifications. This prevents disputes in the event of premature failure in real-world use.

How can we anticipate the service life of a product exposed to harsh environments (chemical industry, offshore)?

Accelerated corrosion tests, such as cyclic tests or acetic salt spray tests, make it possible to assess the long-term resistance of materials or treatments without waiting for years. They provide useful durability indicators for adapting material selection, validating a design, or establishing preventive maintenance plans.

What are the main types of corrosion tests?

Several test families can be used to evaluate corrosion resistance:

  • Controlled-atmosphere tests expose parts to defined conditions, particularly humidity or salinity.
  • Cyclic tests alternate different exposure phases, such as humidification, drying, and salt spray.
  • Electrochemical tests examine the behavior of a material in a given environment, particularly its susceptibility to corrosion or the properties of its protective coating.

The choice depends on the material, coating, operating environment, and objective of the study.

Is a corrosion test required to qualify a new supplier?

Not necessarily. The need for one depends on the product requirements, specifications and qualification procedures. A corrosion test can be used to verify the resistance of metal or coated parts under conditions and against acceptance criteria defined in advance.

Should you perform a resistance test or an investigation when corrosion has already appeared?

An investigation seeks to determine the causes of corrosion, whereas a resistance test evaluates a part’s behavior under defined conditions. 

These approaches are complementary: the investigation helps identify the origin of the degradation, while testing helps assess a corrective solution.

Can results obtained using different protocols be compared?

Not directly. The medium, temperature, duration and sample preparation all influence corrosion test results. A meaningful comparison requires common conditions and consistent evaluation criteria. A number of hours obtained using one method cannot automatically be transposed to another.

What factors influence the cost of a corrosion testing campaign?

The cost depends on the protocol, duration, number and dimensions of the parts, as well as the observations and analysis requested. To obtain a FILAB quote, specify your materials, coatings, quantities, objective and deadline. Attach your specifications if available.

How can you obtain a quote for corrosion testing?

To obtain a quote from FILAB, specify the material, coating, dimensions and number of parts, along with their operating environment and your deadline. Attach your specifications if available. Not sure which protocol is suitable? Describe your objective so we can define the relevant corrosion tests.

The filab advantages
A highly qualified team
A highly qualified team
Responsiveness in responding to and processing requests
Responsiveness in responding to and processing requests
A COFRAC ISO 17025 accredited laboratory
A COFRAC ISO 17025 accredited laboratory
(Staves available on www.cofrac.com - Accreditation number: 1-1793)
A complete analytical facility of 5,200m²
A complete analytical facility of 5,200m²
Tailor-made support
Tailor-made support
Video debriefing available with the expert
Video debriefing available with the expert
Anaïs DECAUX Customer Support Manager
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