Our Expertise

Protective Coatings Expertise

Protective coatings are the first line of defence against corrosion. Our experience includes a wide range of coating systems used on structural steel, tanks, pipelines, marine assets, and high‑risk infrastructure.

• Coating system identification and evaluation

• Surface preparation and environmental condition verification

• Coating application monitoring

• DFT, WFT, and holiday testing

• Inspection of new coating projects and maintenance recoats

• Independent verification of specification compliance

• Identification of coating defects, breakdown, and failure mechanisms

Corrosion Control Expertise

Corrosion is one of the most common and costly threats to industrial and infrastructure assets. NZ Inspectra provides independent corrosion assessments that identify deterioration, evaluate risk, and support asset owners with clear, actionable information for planning maintenance and preventing long-term damage.

We assess:

• General corrosion on steel structures

• Pitting and localised corrosion

• Crevice corrosion

• Galvanic corrosion between dissimilar metals

• Early signs of under‑insulation corrosion (CUI indicators)

• Coating delamination, blistering, and breakdown

• Environmental contributors including marine, industrial, and chemical exposure

Why this matters:

Corrosion leads to structural degradation, unplanned shutdowns, coating failures, and increased lifecycle costs. Early detection allows asset owners to prioritise repairs, extend asset life, and reduce operational risk.

Technical Knowledge & Standards

Our inspections follow recognised industry standards and manufacturer requirements. We use calibrated instruments, approved testing methods, and structured reporting practices to ensure accuracy, repeatability, and confidence in every assessment. Our technical knowledge ensures coatings and corrosion issues are identified correctly and communicated clearly to asset owners and project teams.

• Understanding coating specifications and performance criteria

• Applying relevant industry standards for protective coatings and corrosion control

• Use of calibrated inspection instruments for accurate measurements

• Detailed photographic documentation supporting inspection findings

• Structured and consistent reporting aligned with asset‑owner decision making

• Independent third‑party verification with no contractor influence

Inspection Methods & Tools

We utilise a range of recognised inspection tools and testing methods to ensure accuracy, consistency, and reliable results across all coating and corrosion assessments. Every instrument is calibrated, and every method is aligned with industry best practice.

• Coating thickness gauges (DFT/WFT)

• Surface profile gauges for preparation verification

• Holiday/continuity testers for coating integrity checks

• Environmental condition meters (dew point, RH, substrate temperature)

• Visual inspection equipment for defect identification

• Photographic documentation tools for evidence-based reporting

• Surface cleanliness assessment tools (dust tape tests, solvent rub verification)

• Adhesion testing equipment (pull-off adhesion testing where required)

Our Approach

Our approach is built on independence, accuracy, and a strong focus on long‑term asset performance. Every inspection is carried out using evidence‑based methods, calibrated instruments, and clear reporting designed to support asset owners, engineers, and maintenance teams.

What defines our approach:

• Independence — No ties to contractors or coating suppliers.

• Accuracy — Clear measurements, documented evidence, and standards‑driven inspections.

• Objectivity — Findings based solely on site conditions and specification requirements.

• Clarity — Reports written in plain, practical language that supports maintenance planning.

• Asset‑Owner Focused — Everything we do protects the client’s long‑term asset performance.