Laminate Bond Strength Test Record

This template records peel bond strength results for laminated film samples taken from production. It ties each result to the lot, sample structure, test conditions, and specification so you can confirm layer adhesion before the material moves to converting or shipment. It is designed to document both passing results and non-conformances in one record.

Use it during in-process quality checks, first article validation, lot release testing, or when a customer complaint suggests delamination risk. It is also useful after process changes such as adhesive changes, line speed adjustments, curing changes, or substrate substitutions. If the laminate is critical to barrier performance, print quality, or downstream converting, this record should be part of routine verification.

A trained quality technician, lab technician, or production inspector should complete the test record, with review by a supervisor or quality lead when results are near the limit or out of specification. The person running the test should be able to identify the sample, confirm the test setup, and record the failure mode consistently. Approval should come from someone authorized to disposition non-conforming material.

The cadence depends on your control plan, but common triggers include each production lot, each shift, startup after changeover, and after any process deviation. Some operations also test at defined intervals during long runs to catch drift in adhesive cure, temperature, or nip pressure. The template works best when the frequency is tied to risk and documented in the SOP.

This record supports quality management practices aligned with ISO 9001:2015 by documenting verification, traceability, and non-conformance handling. It can also support internal specifications, customer requirements, and industry-specific validation protocols for laminated packaging or film converting. If the laminate is used in regulated products, the record helps demonstrate controlled inspection and release decisions.

Common mistakes include testing a non-representative sample, skipping conditioning time, using an uncalibrated tester, or recording only pass/fail without the actual peel values. Another frequent issue is failing to note the failure mode, which makes it harder to tell whether the adhesive, substrate, or interface caused the problem. The template is most useful when every result is tied to the exact setup and sample condition.

Yes. You can add fields for film-to-film, film-to-foil, or adhesive-specific structures, and you can tailor the method section for 180-degree peel, 90-degree peel, or tensile-based peel testing. Many teams also add fields for cure time, humidity, temperature, or sample orientation if those variables affect the result. Keep the core fields intact so results remain comparable across runs.

An ad-hoc log often misses the details needed to explain a borderline result, such as calibration status, sample prep, or failure mode. This template standardizes those inputs so the record is easier to review, audit, and trend over time. It also makes it simpler to assign corrective action and decide whether a retest is justified.