Surface Preparation and Coating Inspection

Important Notice: Inspection points presented on this page are provided as representative examples of coating inspection activities. Inspections are selected according to applicable specifications, project requirements and client objectives. Not every inspection point shown below is required on every project. Additional inspections may be performed when justified. Inspection activities are determined on a project-by-project basis.

Coating Inspection

Dry Film Thickness Gauge Calibration

Verification of dry film thickness gauge accuracy before use.

Dry Film Thickness Measurement

Measurement of final dry film thickness.

Visual RAL Check

Verification of coating colour against the specified RAL reference.

MEK Curing Check

Assessment of Zinc Silicate Curing using the MEK rub method.

Adhesion Test on Test Panel

Adhesion testing performed on representative test panels.

High Voltage Holiday Detection

Detection of coating discontinuities using high voltage equipment.

Low Voltage Holiday Detection

Detection of coating discontinuities using low voltage equipment.

Pull-Off Adhesion Test

Pull-off adhesion testing performed directly on coated structures.

Cross Cut Test

Cross cut adhesion testing where specified.

PIG (Painting Inspection Gauge)

Destructive inspection of coating thickness and layers when required.

Thermal Spray Thickness Measurement

Measurement of thermal spray layer thickness.

Hot Dip Galvanization

HDG inspection for Visual, Thickness, Damages etc...

Coating Application

Paint Product Verification

Verification of paint type, batch number, expiry date etc...

Visual Inspection of mixing Before Application

Verification good condition of product and proper mixing.

Climatic Conditions During Application

Verification of climatic conditions before and during coating application to ensure compliance with requirements.

Stripe Coating Check

Verification of stripe coating on edges, welds and critical areas.

Wet Film Thickness Check

Check of wet film thickness during application.

Application Surveillance

Monitoring of coating application activities and workmanship.

Application Surveillance

Monitoring of thermal spraying application activities and workmanship.

Surface Preparation

Climatic Conditions

Verification of ambient conditions, surface temperature and dew point.

Abrasive Contamination

Assessment of abrasive cleanliness before use.

Blotter Test

Compressed air cleanliness check for oil and moisture contamination.

Steelwork Preparation Grade

Assessment of edges, welds and surface imperfections according applicable standards.

Blast Cleaning Grade

Visual assessment of blast-cleaned steel surfaces.

Roughness

Assessment of surface profile using visual-tactile comparator methods.

Surface Profile Measurement

Surface profile measurement using a depth micrometer.

Surface Profile Measurement

Surface profile measurement using replica tape method.

Bresle Test / Soluble Salt Contamination

Evaluation of soluble salt contamination on prepared surfaces.

Dust Test

Assessment of residual dust prior to coating application.

CSN Test Sampling

Sampling and verification of chloride, sulfate and nitrate contamination.