Laminated Glass Interlayer Inspection

It covers the core quality checks used to release laminated glass panels: panel identification, inspection stage, reference standard, interlayer bubbles, delamination, contamination, surface defects, edge quality, seal integrity, and final disposition. It is designed for production and final quality checks, not for structural engineering review. The template also captures photo evidence and corrective action so non-conformances are traceable.

Use it after lamination and before the panel is released to the next process, packed, or shipped. Many teams also use the same form at in-process hold points when a defect trend appears, such as recurring edge clouding or contamination. If the panel is already installed or in service, this template is not the right fit because it is built for manufacturing quality control.

A trained quality inspector, line lead, or production supervisor should complete it, with criteria defined by the plant’s quality system. The person signing off should be able to recognize acceptable versus rejectable bubbles, edge defects, and delamination based on the approved standard and internal acceptance limits. If your site uses a separate disposition authority, that person should review any non-conformance before release.

The template is structured to support laminated glass quality checks aligned with ASTM C1172, which is commonly used for laminated glass evaluation. It does not replace your company’s acceptance criteria, engineering requirements, or customer specifications. If your product has tighter limits for optical defects, edge conditions, or interlayer appearance, those limits should be entered into the template or linked work instructions.

The biggest mistake is marking a panel as acceptable without recording the exact defect location, size, or severity. Another common issue is treating all bubbles or edge clouding the same, even though some may be within tolerance and others are a non-conformance. Teams also forget to attach photos, which makes later review and corrective action much harder.

Yes. Most teams customize the template with product-specific limits, customer requirements, and internal defect categories for different glass sizes or interlayer types. You can also add fields for lot number, furnace or autoclave batch, shift, or operator if you need stronger traceability. Keep the observable checks intact so the form still supports consistent inspection decisions.

Use it as a controlled record that links the inspected panel to its lot, stage, defect findings, corrective action, and disposition. That makes it useful for ISO 9001-style quality management records and for internal audits when you need to show how non-conforming product was identified and handled. If your system uses digital workflows, the template can also route defects for review and approval.

Document the non-conformance, attach photos, and assign the next action immediately, such as hold, rework, scrap, or engineering review. Do not rely on memory or verbal handoff, because laminated glass defects can be subtle and easy to dispute later. If the defect affects safety glazing performance or customer acceptance, escalate it before the panel leaves the controlled area.