Protective coatings are the thin shield standing between bare steel and a cocktail of salt spray, chemicals, and temperature swings. Miss one humidity reading or accept a thin patch of paint and corrosion can snowball into leaks, fires, and days-long shutdowns that dwarf the cost of an inspection. Regulators, insurers, and AMPP/NACE standards all demand proof that every layer meets spec. After twenty years focused on corrosion management, NWTI knows exactly where coatings fail first—and how to stop it before it starts.

How We Help

Our coating inspection process starts before the first blast. We document ambient temperature, humidity, dew point, and surface conditions, following ASTM E 337 to ensure the environment supports proper adhesion. Batch numbers, surface profile measurements, and initial cleanliness levels are recorded so there’s a reliable baseline before application begins.

During application, our inspectors monitor dry-film thickness using SSPC-PA 2, focusing on welds, edges, and random areas known for failure risk. This ensures that coatings go on within spec, and any low readings are caught while crews are still mobilized.

We document every stage with photographs and visual checks, identifying holidays, runs, overspray, or other defects immediately. Our inspectors work directly with contractors to correct these issues on the spot, referencing manufacturer instructions and project specifications.

For high-risk or high-value assets, we go deeper. That includes grading corrosion under ISO 4628-3 or ASTM D610, verifying surface prep with SSPC VIS 2, conducting adhesion pull tests, and performing secondary DFT checks to confirm system integrity.

Finally, we conduct a joint walk-down with the owner, contractor, and any relevant coating reps. The project closes with a signed inspection report that satisfies spec, insurance, and warranty requirements—no guesswork, no surprises.

The NWTI Edge

• Certified depth on every job. Level-2+ NACE/AMPP inspectors lead the field team; senior staff review specs, give product advice, and audit contractor QC daily.
• Actionable intelligence, not just numbers. Our inspectors pair field data with root-cause insight, recommending fixes that prevent repeat failures.
• Vendor-neutral, regulator-ready reports. Clear photos, readings, and punch-lists meet the standard, helping owners avoid delays and disputes.
• Proven life-cycle savings. Two decades of coating inspections translate into longer asset life and lower total cost for pipelines, tanks, and structures across five industries.

Ready to see what a tight coating program can do for your assets? Let’s schedule a walkthrough.