COATINGS AND INSULATIONS

Description

Coatings and insulations are amongst the most critical components to overall asset integrity. Visual inspection, holiday testing, surface preparation, bonding, application, repairs, and recommendations under the supervision of qualified QA/QC personnel are essential to the success of the applied coating.

Visual inspection is the most effective method to inspect coatings. This should be reinforced with holiday testing, thickness measurements (DFT/WFT), environmental controls, proper surface conditions, and QA/QC during the application and inspection periods.

Rope access is an effective method to do coating repairs and replacements in tight windows.

Certification Requirements:

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Coating Inspection and Application Results:

Insulation Inspection and Planning Checklist:

Asset Component	Required Action
Type of Coating	Verify through company records, nameplate data and drawings.
Dry Film Thickness	Measured with a coating thickness gauge.
*Wet Film Thickness*	Wet film thickness gauge.
Visual Defects	Verify with flashlight and magnification as required. Ensure sufficient cleaning.
# of Holidays	Examination performed with low or high voltage holiday detection tool at a voltage determined by coating type and thickness.
Application Errors	Check for runs, uneven thickness, fisheyes, lack of adhesion, poor work practices.
Remaining Life	Verify application date and intended life cycle with service, and as found field results.
Insulation Cladding	Check for structural integrity, holes, other damages.
Insulation Material	Verify if CUI is present, and the overall condition of insulation material.
Banding	Check for tightness and damage.
Fasteners	Verify the condition of fasteners.
Hardware	Verify if all hardware is present and operating.