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Run: IGU Primary and Secondary Sealant Bead Inspection

Use this IGU Primary and Secondary Sealant Bead Inspection template to verify bead continuity, width, thickness, and corner workmanship around the full perim...

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Inspection Details and Unit Identification

IGU identification recorded

Record unit ID, job number, lite size, spacer type, and inspection location.

Manufacturer specification or approved standard available critical (required)

Verify the applicable sealant bead specification, drawing, or approved sample is available for comparison.

Yes No N/A

Inspection method and measuring tools verified critical (required)

Confirm the inspector used the correct gauge, caliper, or visual reference method required by the work instruction.

Yes No N/A

Unit orientation and perimeter access adequate

Confirm all four edges and corners can be inspected without obstruction.

Yes No N/A

Primary Sealant Bead Inspection

Primary butyl bead continuous around full perimeter critical (required)

Check for uninterrupted primary sealant coverage around all edges with no skips, voids, or breaks.

Yes No N/A

Photo evidence (optional)

Primary butyl bead width within specification critical (required)

Measure bead width at representative locations and compare to the approved specification.

Primary butyl bead thickness within specification critical (required)

Measure bead thickness at representative locations and compare to the approved specification.

Primary sealant adhesion and wet-out appear uniform

Verify the primary sealant appears properly seated and bonded to the spacer and glass surfaces with no visible separation.

Yes No N/A

Secondary Sealant Bead Inspection

Secondary sealant bead continuous around full perimeter critical (required)

Check for uninterrupted secondary sealant coverage around all edges with no gaps, skips, or open areas.

Yes No N/A

Photo evidence (optional)

Secondary sealant bead width within specification critical (required)

Measure bead width at representative locations and compare to the approved specification.

Secondary sealant bead thickness within specification critical (required)

Measure bead thickness at representative locations and compare to the approved specification.

Secondary sealant profile is smooth and fully tooled

Verify the bead profile is uniform, without excessive ridges, pinholes, or untooled areas that could affect durability.

Yes No N/A

Corners, Edge Conditions, and Workmanship

Corners fully sealed with no voids or pull-back critical (required)

Inspect all corners for complete sealant coverage, proper overlap, and no visible pull-back, fisheyes, or voids.

Yes No N/A

Photo evidence (optional)

Edge coverage consistent at all perimeter locations critical (required)

Verify sealant coverage is consistent along straight runs and transitions, with no thin spots or exposed spacer edges.

Yes No N/A

Visible workmanship defects documented

Select any observed defects that may affect long-term argon retention or seal integrity.

Note (optional)

Closeout and Corrective Action

Non-conformances recorded with location and severity critical (required)

Document each deficiency by edge, corner, and defect type so corrective action can be assigned.

Yes No N/A

Disposition assigned critical (required)

Select the inspection disposition for the unit.

Note (optional)

Inspector signature completed critical (required)

Inspector signs to confirm the inspection was completed and findings are accurate.

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