Services · Inspection Manpower and Third-Party Services
Coating Inspection Services
Inspection and laboratory sit in one company. What the field inspector reports on surface preparation and film build can be checked against coating evaluation and testing on the bench, and buried or immersed service can call on the cathodic protection practice of TCR Advanced Engineering, a group company.
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In brief
TCR Engineering Services Pvt. Ltd., the NABL ISO/IEC 17025:2017 accredited testing house in Navi Mumbai, provides coating inspection services through AMPP/NACE-qualified and BGas-certified inspectors for field and shop coating work across India and the GCC, with field readings checked against coating evaluation in its own laboratory and cathodic protection from group company TCR Advanced Engineering.
What coating inspection is
TCR deploys AMPP/NACE-qualified coating inspectors for field and shop coating inspection across India and the GCC, backed by the coating evaluation capability of its own laboratory, with cathodic protection available from TCR Advanced Engineering's CP Division, a TCR group company.
- Credentials: AMPP/NACE Coating Inspector (CIP) Level 2 and Level 3, and BGas-certified paint inspectors.
- In the GCC: FROSIO Inspector Level III through TCR Arabia.
- Coverage: field and shop coating inspection across India and the GCC.
- Backed by: the coating evaluation capability of TCR's own laboratory, so a field reading can be checked on the bench, and TCR Advanced Engineering's CP Division, a group company, for buried and immersed service.
Coating inspection is one of TCR's inspection manpower and third-party services. Senior TCR paint inspectors hold BGas and NACE certification, and what the field inspector reports on surface preparation and film build can be checked against coating evaluation on the bench.
Through the coating lifecycle
Field inspection covers the coating lifecycle: surface preparation, primer, intermediate, topcoat, holiday detection, and post-cure dry-film and wet-film thickness verification.
- Stages inspected: surface preparation, primer, intermediate, topcoat, holiday detection, and post-cure dry-film and wet-film thickness verification.
- Verified on site: blasting and coating materials, blasting and coating equipment, temperature and humidity, surface condition, and the application procedure.
- Instruments carried: wet-paint and dry-paint film thickness gauges, holiday detectors, a hygrometer with dew-point calculator, and a metal-surface thermometer.
- Records captured: materials control and identification, climatic and surface conditions, abrasive details and standard, coating and application-procedure detail, equipment calibration, and inspection results.
The surface-preparation record names the abrasive or wire-brush standard applied.
Governing standards
Field capability is anchored to the AMPP/NACE Coating Inspector framework and read against the ISO 12944 protective-coating series.
| Field capability | Standard |
|---|---|
| Surface preparation visual standard | SSPC-VIS 1, ISO 8501-1 |
| Anchor profile | ASTM D4417, ISO 8503 |
| Dust contamination | ISO 8502-3 |
| Soluble salt contamination | ISO 8502-6, ISO 8502-9 |
| Wet film thickness | ASTM D4414 |
| Dry film thickness | ASTM D7091, ISO 2808 |
| Holiday detection | NACE SP0188 |
| Adhesion (field) | ASTM D3359 (cross-cut), ASTM D4541 (pull-off) |
| Cure verification | DSC, FTIR, Persoz hardness |
The laboratory complement
Field findings can be confirmed on the bench, where the laboratory evaluates coating systems in full.
- Adhesion: cross-cut per ASTM D3359 and pull-off per ASTM D4541.
- Thickness: ISO 2808 and ASTM D7091.
- Disbondment and corrosion: cathodic disbondment per ASTM G8 and salt spray per ASTM B117.
- Analytical: SEM and EDS for galvanised coatings, FTIR and DSC for epoxies, TGA for bituminous coatings.
- Sour service: elastomeric coating performance under sour exposure, a Shell-approved capability.
For buried and immersed service, cathodic protection is delivered by TCR Advanced Engineering's CP Division in Vadodara, a TCR group company.
Personnel
Coating inspection is delivered by credentialled inspectors.
- AMPP/NACE: Coating Inspector (CIP) Level 2 and Level 3.
- BGas: certified paint inspectors.
- FROSIO: Inspector Level III in Saudi Arabia through TCR Arabia.
- Delivered alongside: TCR's third-party inspection and source inspection lines.
The bench carries AMPP/NACE Coating Inspector (CIP) Level 2 and Level 3 inspectors and BGas-certified paint inspectors, with FROSIO Inspector Level III personnel in KSA through TCR Arabia. Inspection is delivered alongside TCR's third-party inspection and source inspection service lines.
What Do Holiday Testing and DFT Measurement Tell the Coating Owner?
Holiday testing and dry film thickness (DFT) measurement are the two field checks that show whether a coating will protect the steel beneath it. TCR's AMPP/NACE and BGas-certified inspectors record both against the coating specification across India and the GCC, with holiday detection to NACE SP0188 and DFT to ASTM D7091 and ISO 2808.
- Holiday testing: finds pinholes, voids and discontinuities that leave steel exposed, so they are repaired before the coating enters service.
- DFT measurement: confirms the film build the specification calls for, coat by coat and after cure.
- Wet film thickness: read during application to ASTM D4414, while film build can still be corrected.
- The record: readings reported with the gauge calibration and the climatic conditions, against the coating or purchase specification.
- A disputed reading: coating thickness and adhesion can be confirmed on the bench in TCR's laboratory.
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Frequently asked questions
What qualifications do TCR coating inspectors hold?
The bench carries AMPP/NACE Coating Inspector (CIP) Level 2 and Level 3 inspectors and BGas-certified paint inspectors, with FROSIO Inspector Level III personnel in KSA through TCR Arabia.
What does a field coating inspector check?
The inspector verifies surface preparation, the blasting and coating materials and equipment, temperature and humidity, surface condition, the application procedure, holiday detection, and post-cure dry-film and wet-film thickness.
Which standards govern coating inspection at TCR?
Surface preparation runs to SSPC-VIS 1 and ISO 8501-1, anchor profile to ASTM D4417 and ISO 8503, dry film thickness to ASTM D7091 and ISO 2808, holiday detection to NACE SP0188, and field adhesion to ASTM D3359 and ASTM D4541, referenced to the ISO 12944 series.
Can field findings be confirmed in the laboratory?
Yes. TCR's laboratory in Navi Mumbai runs coating evaluation on the bench, including cross-cut and pull-off adhesion, cathodic disbondment per ASTM G8, and salt-spray resistance per ASTM B117. For buried and immersed service, cathodic protection is delivered by TCR Advanced Engineering's CP Division, a TCR group company.
Is coating inspection covered by TCR's NABL accreditation?
Field coating inspection is inspection work and is not a scope item of NABL certificate NABLT0726MH18640. In the laboratory, salt spray to ASTM B117 and coating thickness to ASTM B499, ASTM B487 and ASTM E376 on metallic materials, and pull-off adhesion to ASTM D4541 on paint coatings and building finishes, are within that scope.