Services · Materials Testing
Coating Evaluation and Inspection
AMPP/NACE and BGas certified inspectors follow the coating through its full lifecycle, from surface preparation and primer to post-cure dry-film thickness verification, with the laboratory bench behind them for adhesion, disbondment and salt-spray evidence.
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Overview
TCR Engineering evaluates paint and coating systems for industrial, marine and infrastructure assets from its NABL ISO/IEC 17025:2017 accredited laboratory (NABLT0726MH18640) in Navi Mumbai. AMPP/NACE and BGas certified inspectors cover the full coating lifecycle in the field, while the laboratory runs adhesion, thickness, salt spray, cathodic disbondment and weathering tests.
Paint and coating evaluation for industrial, marine, and infrastructure coatings. Cross-cut adhesion (ASTM D3359), pull-off adhesion (ASTM D4541), coating thickness (ISO 2808, ASTM D7091), holiday detection, cathodic disbondment (ASTM G8), salt spray resistance, cyclic corrosion, abrasion resistance, UV accelerated weathering. SEM and EDS for galvanised coatings. FTIR and DSC for epoxy coatings. TGA for bituminous coatings. Evaluation of elastomeric coating performance under sour-service exposure (Shell-approved capability).
Overview
AMPP/NACE certified and BGas-certified inspectors. The capability covers field inspection through the coating lifecycle (surface preparation, primer, intermediate, topcoat, holiday detection, and post-cure DFT/WFT verification) plus laboratory evaluation of coating systems (cross-pillar reference, Materials Testing for ASTM D3359 cross-cut adhesion, ASTM D4541 pull-off, ISO 2808 / ASTM D7091 thickness, ASTM G8 cathodic disbondment, ASTM B117 salt spray).
| 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 Shell-approved capability for elastomeric coating evaluation under sour-service exposure (see Corrosion & Sour Service) sits in the laboratory complement.
Reference: ISO 12944 corrosion-protection-by-coating series.
Standards: ASTM D3359 (adhesion), ASTM D4541 (pull-off adhesion), ASTM D7091 (dry-film thickness), ASTM D822 and D4587 (weathering), ASTM B117 (salt spray), ASTM G8 and G42 (cathodic disbondment). ISO 2808 (film thickness), ISO 4624 (pull-off), ISO 12944 (protective paint systems).
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Frequently asked questions
What field coating inspection does TCR provide?
AMPP/NACE certified and BGas certified inspectors cover the full coating lifecycle: surface preparation to SSPC-VIS 1 and ISO 8501-1, anchor profile per ASTM D4417 and ISO 8503, dust and soluble-salt contamination per ISO 8502, wet and dry film thickness, holiday detection per NACE SP0188, and field adhesion testing.
Which laboratory tests qualify a coating system?
The laboratory runs cross-cut adhesion per ASTM D3359, pull-off adhesion per ASTM D4541 and ISO 4624, film thickness per ISO 2808 and ASTM D7091, cathodic disbondment per ASTM G8 and G42, salt spray per ASTM B117, cyclic corrosion, abrasion resistance and UV accelerated weathering per ASTM D822 and D4587.
Can TCR characterise the coating material itself?
Yes. SEM and EDS examination supports galvanised coating evaluation, FTIR and DSC characterise epoxy coatings and verify cure, TGA covers bituminous coatings, and Persoz hardness supplements cure verification in the field. Elastomeric coating performance under sour-service exposure is evaluated alongside the corrosion and sour service laboratory.