What Is Packaging Failure Analysis?
Packaging failure analysis is the systematic investigation of why packaging failed — in the field, during testing, or during a regulatory inspection. When a product arrives damaged, a test report shows a failure, or a retailer issues a packaging rejection, the question is not just what failed — it is why it failed and what needs to change. Failure analysis translates test data and field damage evidence into actionable redesign guidance. Without it, companies fix the symptom rather than the cause and fail again.
CertaPak provides failure mode analysis as part of every test report, identifying the specific element that failed, the failure mechanism, and the packaging changes most likely to produce a passing result.
Common Packaging Failure Modes and Their Causes
| Failure Mode | Common Cause | Fix Direction |
|---|---|---|
| Corner/edge crush | Insufficient board grade or corner reinforcement | Board grade upgrade, corner pads, or inner fitment |
| Product shifting in transit | Cushioning too soft or insufficient restraint | Denser foam, form-fitting dunnage, or dividers |
| Seal failure / leakage | Seal weakness exposed by vibration fatigue | Secondary seal, induction seal, or closure redesign |
| Corrugated collapse | Humidity degradation before compression load | Moisture-resistant coating, board grade, or wrap |
| Display damage (surface) | Part-to-packaging contact during vibration | Restraint system, foam lining, or interleaving |
| Glass fracture | Cushioning G-attenuation insufficient for fragility rating | Denser/thicker foam, inner box, or suspension pack |
Field Damage vs. Test Failure: Different Starting Points, Same Analysis
Packaging failure analysis starts differently depending on whether the failure was observed in the field or in a test. Field damage requires reconstructing what happened — examining the damaged packaging for evidence of which hazard caused the failure (drop impact patterns, vibration rub marks, compression deformation). Test failure comes with precise data — which orientation, what force, what the post-test condition showed. Both paths lead to the same output: a root cause and a redesign recommendation. CertaPak\’s engineers perform field damage analysis for companies that are experiencing distribution damage and need to understand the root cause before committing to a redesign.
How to Use Test Data to Drive Redesign
A test failure report contains everything you need to target a redesign. The key data points:
- Which test element caused failure — Drop? Vibration? Compression? The element tells you where to focus redesign.
- Which orientation failed — Corner? Edge? Flat? The orientation tells you which structural element to reinforce.
- What the failure mode was — Product damage? Packaging deformation? Seal failure? The mode tells you whether the issue is cushioning, structure, or closure.
- At what point in the sequence it failed — Early failures indicate fundamental inadequacy; late-sequence failures indicate marginal performance that may be addressable with modest changes.
The Redesign-Retest Cycle
Most packaging reaches its final certified configuration through at least one redesign-retest cycle. The goal is not to avoid testing — it is to use testing efficiently. Test early (prototype stage), fail fast, redesign based on data, retest to confirm. This cycle, repeated once or twice, is faster and cheaper than launching with untested packaging and discovering failure modes through customer damage reports. CertaPak offers priority retest scheduling for clients working through active redesign cycles.
Frequently Asked Questions — Packaging Failure Analysis
Can CertaPak analyze damaged packaging returned from the field?
Yes. Submit damaged packaging samples — ideally with the damaged product still inside and the package in its as-received damaged condition — and CertaPak\’s engineers will examine the damage pattern to identify the likely distribution hazard that caused it. Field damage analysis is a separate service from certification testing; contact us to discuss scope and pricing.
How quickly can I retest after a packaging redesign?
CertaPak offers priority retest scheduling. Once redesigned samples are received, standard 48-hour report turnaround applies. Rush testing is available. Contact us when you are ready to ship redesigned samples and we will schedule immediately.
Do I need to retest if I only change the corrugated board grade?
Yes. A board grade change affects structural performance — compression strength, burst strength, and edge crush resistance all change with board grade. A retest confirms that the upgraded board grade resolves the failure that prompted the change and that no new failure modes are introduced. The retest cost is far less than discovering the change was insufficient at launch.
Turn test failures into packaging that works. Get a CertaPak quote — failure analysis included in every test report.