Corrosion under insulation is the corrosion that occurs when steel equipment becomes corroded as a result of water penetration. 

Corrosion under insulation is extremely critical as it makes up a large percentage of the global process industries maintenance expenditures, forced shutdowns and lost production.

To provide good corrosion protection we can simulate CUI (corrosion under insulation) conditions in our laboratory through the following tests:

• ISO 19277 (Qualification testing and acceptance criteria for protective coating systems under insulation)
• Hot/ cold cyclic test.

Norner performs a wide range of cyclic climate chamber tests to simulate different climate with numerous possible test conditions under laboratory controlled yet accelerated conditions.

• Fixed temperature and humidity from -70 °C to +250 °C
• Temperature cycling -70 °C to +189 °C with controlled humidity up to 95%
• High temperature cycling from +100 °C to +650 °C
• Cryogenic exposure
• Salt spray

Cyclic Immersion testing in different climate conditions. 

Custom test conditions as per client`s request.

Norner performs testing in different environmental conditions to measure the corrosion resistance of your product. With accelerated weathering tests we can for instance simulate the influence of salt, moisture and sunlight.

We perform coating testing in accordance with ISO 12944 - the international standard on corrosion protection of steel structures by protective paint systems:

• ISO 12944-6 Laboratory performance test methods
• ISO 12944-9 Protective paint systems and laboratory performance test methods for offshore and related structures

For more specific requirements we offer salt spray test methods in various conditions. 

Norner is granted ISO/IEC 17025 accreditation for our protective coating testing. This is the most important quality standard for test laboratories internationally. 

The scope of the accreditation includes

• Cathodic disbonding ISO 15711
• Salt spray test ISO 9227
• UV Fluorescence ISO 16474-3
• Continuous condensation ISO 6270-1
• Immersion ISO 2812-1
• Saltwater immersion ISO 2812-2
• ISO 12944-6 and ISO 12944-9
• Pull-off adhesion test ISO 4624
• Cross cut ISO 2409
• Degree of degradation ISO 4628-2,-3,-4,-5,-6

Find out more about Norwegian accreditation here.

Mechanical properties of your coating.

Our mechanical testing services for protective coating are performed with state-of-the-art equipment and cover:

• Flexibility
• Impact resistance
• Tensile strength
• Compression strength
• Abrasion resistance
• Cylindrical Bending testing
• Hardness testing
• Scratch resistance

We also perform Optical measurements such as gloss and colour measurements.

Norner performs a variety of corrosion tests in accordance with several NACE standards.

NACE TM0104

Offshore platform ballast water tank coating system evaluation.

NACE TM0304

Offshore platform atmospheric and splash zone maintenance coating system evaluation. 

We perform client specific standards based on different test methods:

• Cathodic disbondment
• Dimensional stability
• Ageing stability
• Edge-retention
• Thick-film cracking
• Hot/wet cycling
• Rust creepage resistance
• Thermal-cycling resistance 

We offer testing of protective coating for offshore applications based on Norsok M-501.

This Norsok standard gives the requirements for the selection of coating materials, surface preparation, application procedures and inspection for protective coatings to be applied during the construction and installation of offshore installations and associated facilities.

In order to meet the requirements in Norsok M-501, ISO 20340 we offer 3rd party witnessing of paint applications.

• System 1
• System 3B
• System 4
• System 5A
• System 7A, 7B and 7C

Norner provides a multitude of coating tests under standardized and customer-specified conditions. 

Qualification testing of protective coatings

• Norsok M-501 (System 1, 3B, 4, 5A, 5B, 7A, 7B and 7C)
• ISO 12944
• ISO 20340
• ISO 12736
• NACE 0185
• NACE TM0115
• NACE TM0187
• ASTM G8
• ASTM G95
• ASTM G80

Ageing and compatibility testing service

• High pressure / high temperature immersion in aggressive fluids and gases (e.g. CH4, H2S, CO2 or other)
• Resistance to gas pressure variations
• Decompression tests
• Evaluation of material properties according to various specifications
• Qualifying non-metallic materials

Coating material properties

• Abration testing
• Fatigue testing
• Thermal analysis (TGA, DSC, TMA, DMA, K-value)
• Spectroscopy analysis (FTIR)
• Chromatography analysis