Run IGU Low-E Edge Deletion Verification Inspection — Free

Inspection Setup and Unit Identification

IGU job, lite count, and coating specification match the traveler or work order critical (required)

Verify the unit identification, glass make-up, coating side, and edge deletion requirement against the production traveler or specification.

Yes No N/A

Inspection performed at the correct process stage before secondary sealant application critical (required)

Confirm the unit is being checked after edge deletion and before the secondary seal is applied.

Yes No N/A

Inspection tools available and suitable for verification

Confirm the inspector has the required tools such as a light source, ruler or caliper, and magnification if used by the site SOP.

Yes No N/A

Glass surface is clean enough to evaluate the edge deletion band

Verify dust, oil, water, or debris are not obscuring the perimeter area being inspected.

Yes No N/A

Edge Deletion Width and Continuity

Edge deletion width meets specification around the full perimeter critical (required)

Measure the exposed bare-glass band at representative points on all sides and confirm it meets the required width per product specification.

Edge deletion is continuous with no unremoved coating bridges critical (required)

Inspect the perimeter for any remaining low-E coating that crosses into the seal area or interrupts the bare-glass band.

Yes No N/A

Corner areas are fully cleared to bare glass critical (required)

Check all corners for coating remnants, narrow spots, or incomplete deletion where sealant adhesion could be compromised.

Yes No N/A

Deletion band is uniform and does not vary beyond site tolerance

Assess whether the edge deletion width remains consistent enough to support reliable sealant bonding across the perimeter.

Surface Condition and Seal Bond Readiness

Bare-glass deletion area is free of coating residue and visible contamination critical (required)

Verify the exposed glass band is clean and does not show smeared coating, dust, fingerprints, or other contamination that could affect bond performance.

Yes No N/A

No scratches, chips, or edge damage are present in the seal area critical (required)

Inspect the deletion band and adjacent edge for damage that could interfere with secondary seal adhesion or unit durability.

Yes No N/A

No visible coating haze or partial removal remains in the seal area critical (required)

Confirm the seal zone is fully exposed bare glass and does not contain haze, ghosting, or partially removed low-E coating.

Yes No N/A

Surface condition supports secondary sealant adhesion

Rate the overall readiness of the deletion area for sealant application based on cleanliness, continuity, and exposed bare-glass condition.

Documentation and Corrective Action

Measured deletion width and inspection results recorded

Document the measured width, pass/fail result, and any observed non-conformance for the inspected unit.

Yes No N/A

Any non-conformance is clearly described with location on the lite

If a deficiency is found, record the exact side, corner, or area affected so rework can be targeted.

Corrective action assigned for any edge deletion deficiency

Document whether the unit requires rework, re-cleaning, re-deletion, hold for review, or scrap disposition per site procedure.

Inspector name and completion time recorded

Capture who completed the inspection and when it was performed for traceability.

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Run: IGU Low-E Edge Deletion Verification Inspection

Inspection Setup and Unit Identification

Edge Deletion Width and Continuity

Surface Condition and Seal Bond Readiness

Documentation and Corrective Action

Get your results