Precision at Every
Production Step
Our IPQC system monitors every stage of silicone manufacturing -- from first article confirmation to patrol inspection, assembly verification, and packaging audits -- ensuring every piece meets exacting brand standards before it leaves our floor.
First Article
Confirmation & Parameter Logging
Every production run begins with a formal first article inspection. We lock in molding parameters, verify material compliance, and sign off dimensional conformity before mass production is authorized.
Documented Setup Sheet
Mold temperature, cycle time, pressure, curing time and material lot number are recorded on a controlled setup sheet, signed by the operator and QC engineer.
Material Traceability
Raw silicone batch IDs, pigment ratios and curing agent amounts are logged -- enabling complete traceability from finished product back to incoming material certification.
Triple Sign-Off
The first 3 pieces must pass dimensional, visual and functional verification signed by operator, line leader, and IPQC before green-lighting the batch.
Dimensional, Appearance
& Color Patrol
Trained IPQC inspectors conduct scheduled patrols across every production line, cross-checking critical dimensions, surface quality and color consistency against the approved golden sample.
Dimensional Check
Calipers, gauges and projectors verify every critical dimension against the drawing -- tolerance held to ±0.1mm.
- ◆ CMM & 2D projectors
- ◆ Wall thickness micrometers
- ◆ Hardness Shore A/00 testers
Appearance Audit
Surface, flash, bubbles, scratches and mold marks are inspected under standard D65 lighting conditions.
- ◆ No visible flash > 0.1mm
- ◆ No air bubbles / voids
- ◆ Golden sample reference
Color Consistency
Pantone cards and spectrophotometer readings verify ΔE values batch-to-batch to maintain brand color integrity.
- ◆ ΔE ≤ 1.5 target
- ◆ Pantone TPG/TCX library
- ◆ Light box D65/TL84/UV
Printing, Bonding
& Assembly Verification
Beyond molding, every secondary process is a potential variable. Our IPQC team validates silk-screen, pad printing, UV coating, adhesive bonding and multi-part assembly at defined intervals.
Ink Adhesion
3M tape test, cross-hatch, alcohol rub cycles and curing temperature logs.
Adhesive Strength
Peel and shear strength tested; adhesive mixing ratios and curing time logged.
Fit & Function
Mating force, snap-fit retention and functional cycle test on sampled units.
UV / Spray
Film thickness, gloss, color uniformity and abrasion resistance checked.
Packaging First Article
& Completeness Check
Before mass packing starts, we verify the complete packaging configuration -- barcode, label, user manual, accessories, inner carton, master carton and shipping marks all against the approved packing specification.
Abnormal Isolation, Line Stop
& Corrective Actions
When any deviation is detected during IPQC, our response protocol activates immediately -- stopping the line, isolating suspect material, and triggering a formal CAPA (Corrective & Preventive Action) workflow.
Red Tag Isolation
Suspect goods immediately red-tagged and moved to the quarantine zone to prevent cross-mixing with conforming product.
Line Stop Authority
IPQC inspectors hold the authority to stop any line if defect rate exceeds set thresholds -- no production manager override.
Root Cause Analysis
5-Why and Fishbone analysis conducted with Engineering, Production and QC to identify true root cause.
CAPA & Validation
Corrective actions implemented and effectiveness validated after 3 production cycles. SOPs updated accordingly.
Patrol Records
& Accountability
Every patrol is signed, dated and archived. QC personnel are assigned to specific lines, creating clear accountability from inspector to supervisor to QA manager.
Request a sample record template| Time | Check Item | Result | Inspector |
|---|---|---|---|
| 08:30 | First Article | PASS | L. Chen |
| 10:30 | Dim. Patrol | PASS | L. Chen |
| 12:30 | Color ΔE | 1.4 OK | W. Zhao |
| 14:30 | Flash Check | PASS | W. Zhao |
| 16:30 | Pkg First Art. | PASS | W. Zhao |
Have unique IPQC
quality requirements?
Share your project specifications -- tolerances, test methods, record formats, or compliance standards. Our QA engineering team will tailor an inspection protocol for your production.
- Custom inspection SOPs
- Branded QC record templates
- Pre-shipment audit coordination