Coating Inspection Canada

Prevent coating problems; carry out a quality coating inspection

Problems can arise during the pre-treatment, application, and curing phases of a coating job. Coating jobs that at first seem perfect can begin to fail. There are so many variables in any coating application, from the environment to the material itself, that getting an effective long-lasting job is a highly skilled task. This is why we need the coating inspection: we need trained and certified professionals on board at every step, testing and guiding the coating process, as well as making sure the coating job is done according to the Canadian Code (CSA standards). The cost of repairing a badly executed coating can be many times the cost to paint it in the first place.

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Before the coating starts: specification and survey

A coating inspection is carried out by a certified coating inspector who is familiar with all the aspects that contribute to optimal performance of a coating, and the specific standards each coating should individually meet. The coating inspection process starts with inspecting the substrate and the environment, which becomes part of a coating specification. A coating specification is an important document: it should provide clear and precise instructions to the contractor on what is to be done and how it is to be done in order to ensure optimal performance.

writing the specification for coating inspection

Writing the specification for coating inspection is a very important step before application

Writing the specification

Is your coating specification clear and comprehensive, making sure there are no misunderstandings between engineers, applicators, contractors, and managers? The specification needs to clearly describe the owner’s expectations for their project, aesthetically and structurally. It must also include a description of the substrate and the environment the coating will be applied in. Furthermore the Canadian Code (if applicable) for the project should be stated.

A well-written specification contains as much detail as is required to make these expectations clear, in plain unambiguous terms. It is a template, and thus needs to be as accurate as possible for the finished product to turn out as planned. Some manufacturers actually provide specification services, so that every step of the process is overseen by someone who knows the coating products inside out.

The coating survey

First of all you have a facility, infrastructure, asset or machinery that requires coating, or a coating job that needs refurbishing or evaluating. You want assurance that the job will, at every step, be of only the highest quality. Therefore, your coating inspection procedure starts with a site condition survey, which forms a foundation for the coating specification. This condition survey will answer questions such as:

  • What is the substrate, and its current condition (damage, deterioration, rust, peeling)?
  • To what degree is there damage, what measures must be taken to repair it?
  • Are there any environmental issues which need to be taken into account?

Any problems that might be found, or maintenance required, need to be dealt with.

During coating application: the coating inspection process

Once the specification has been written, the application process must be monitored from beginning to end; from surface preparation to final colour and gloss. This process generally consists of six standard steps:

  1. Inspecting the surface preparation and pre-treatment – The most fundamental phase of a coating inspection.
    A well-prepared surface is the foundation of a successful coating. The aspects to inspect include surface cleanness and roughness. There are coating inspectors who specialise in assessing surface preparation such as sand blasting.
  2. Measuring film thickness – inspection before and after curing
    It is important to inspect the film thickness of powder coatings and liquid coatings before the coating cures so that and deviation from the specification can be detected and repaired before curing. The dry film thickness is measured to make absolutely sure the film thickness is in accordance the optimal performance of the coating.
  3. Assessing climate conditions – for defining optimal application conditions
    Environmental factors such as climate must be assessed to prevent the air, surface temperature, or humidity affecting the curing and adhesion of the coating.
  4. Observing the curing rate – for the strongest result
    The coating must be cured to the degree defined in the specification; if the coating is not cured enough the surface lacks hardness, making the finished coating layer more vulnerable to hazards such as abrasion and chemicals.
  5. Checking for sufficient adhesion – done on a sample substrate
    The current methods of testing adhesion are all destructive, so the test is usually conducted on a sample substrate. It is crucial that the sample has undergone the exact same treatments under the exact same conditions as the real substrate.
  6. Evaluating the colour and gloss of the cured film – according to the specification
    The colour of a coating needs to match the specification, but also be consistent across the whole surface. Gloss level is also measured, and checked for deviation.

After coating application: regular coating inspections

Maintenance inspections
Even though the coating is in place, the need for coating inspections has not disappeared. Maintenance inspections are conducted to confirm that the coating continues to meet the expectations set in the specification. An examination of all coatings needs to be carried out, to check that properties such as thickness, corrosion, and fire damage all conform to the specification. In offshore and other difficult-to-access environments, the coating inspectors use drones to carry out the inspection. Corrosion costs Canadian companies billions of dollars a year in replacing and repairing damaged assets, so having a regular coating inspection on for example anti corrosion measures can catch the problem before it goes too far.

Failure analysis
Another form of coating inspection that takes place after the coating has been applied is failure analysis, which is applicable only when the coating does not perform as the specification states. It happens; coating projects fail, damage happens, or corrosion wins. In this case, the coating inspection has one goal – to find the culprit. Like a detective, they will gather and analyse information about the coating, its environment, its usage, its application process and thus uncover the reason behind the failure. Once found, they outline the best way forward to deal with the issue and how to prevent it recurring in the future.

Coating inspection courses and certifications in Canada

There are several coating inspector programmes (CIP) that set the standards for inspection in Canada as well as training and certifying inspectors. The most well known and recognized authority is NACE, the Worldwide Corrosion Authority. The NACE certifications and training are given and accepted in Canada. Here you will find information on NACE and other relevant coating inspection programmes for the Canadian Market. Note: ASTM and ISO (International Organisation for Standardization) are the international bodies which produce the standards that guide the coating industry.

Canadian coating inspection with international NACE Certification

The NACE Coating Inspector Program (CIP) has been setting the standard for inspections in the protective coatings industry for over 30 years. The CIP is an international certification programme that produces the highest calibre of paint inspectors. These come in Level 1, 2, and 3, with 3 being the highest. They also publishes a book outlining the use of coating inspection equipment.

Nace coating certification

Nace is a recognized coating certification in Canada

NACE Level 1 Certified – This certification is designed for Coating Inspectors responsible for performing and documenting basic and non-destructive inspections of liquid coatings applied by brush, roller or spray to steel surfaces.
NACE Level 2 Certified – This certification is designed for Level 2 Coating Inspectors responsible for performing and documenting non-destructive inspections of liquid and non-liquid coatings to any substrate in a shop setting or under the supervision of a level 3 inspector when working in a field setting.
NACE Level 3 Certified  – This certification is designed for level 3 coating inspectors (which requires completion of certain requirements, an exam, and approved application) who aim to be recognized as leaders in the Coatings Inspection field.

ICorr Certification

ICorr, the Institute of Corrosion, is a corrosion authority which provides a number of courses that enable paint inspectors to acquire the necessary qualifications to carry out inspections in the field. The courses are in Levels 1, 2, and 3, and are internationally accredited and recognised. The highest level is level 3, and only they are trained and certified to write paint specifications for coatings projects. The ICorr levels correspond to the NACE levels.

CPCA Canadian Paint and Coatings Association Certification

CPCA provides training and certification opportunities towards attaining a diploma in coatings technology, as well as various health and safety certifications. The courses may be of interest to employers of paint manufacturers; those engaged in raw materials distribution to the coatings industry who wish to train new employees in the basics of coatings technology; paint contractors who need to understand qualities of the products they use; and others.

Coating inspection companies in Canada

There are several coating inspection companies in Canada. The following are a small sample. If you would like more information about the right company for you, please contact us!

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Canadian Quality Inspections 125 Higgins Avenue Winnipeg, MB R3B 0B6 CanadaAerial devices, storage tanks, pipelines, structural steel, cranes, pressure vessels, bridges, equipmentNACE
SGS Canada Inc. 6490 Vipond Drive Mississauga, Ontario, L5T 1W8 CanadaOffshore structures, asphalt roads, wind energy aerial devices, storage tanks, pipelines, structural steel, cranes, pressure vessels, bridges, equipmentNACE
Rogers & Associates Unit 2113, 4 Augustine Crescent Sherwood Park, Alberta Canada T8H 0X8Industrial steel, oil & gas pipelines, storage tanks, bridges, cooling towersNACE
Paint-InspectorIndustrial and chemical installation, marine and offshore as well as other objects coated with marine or protective coatingsNACE, ICorr, Frosio, BGAS, SSPC