Our QC Process for Mixed-Material Retail Displays
Samtop applies a 6-stage QC process covering material inspection, precision fitting, assembly testing, and shipment verification to ensure high-quality mixed-material displays using acrylic, PU, LED, resin, wood, and metal — all tested, aligned, and verified before shipping.
Building a mixed-material retail display with acrylic, PU, resin, and LED is complex. Samtop’s multi-step QC system ensures everything fits, shines, and ships perfectly — across materials, stores, and time zones.
Acrylic cracks. PU peels. LEDs overheat. Logos shift. One small QC miss can ruin a premium rollout.
That’s why Samtop integrates QC at every production stage — from incoming materials to final packaging — specifically tailored for multi-material custom displays.
🧱 Why Mixed Materials Require Multi-Layered QC
| Risk Type | Common Failure Mode |
|---|---|
| Expansion mismatch | Cracks, warping, or stress fractures in heat or humidity |
| Surface sensitivity | PU peeling, scratched acrylic or mirror |
| Poor component fit | Loose trays, misaligned logos, uneven bases |
| LED heat impact | Melted glue, yellowing, wire detachment |
| Color or gloss shift | Mismatch between PU, acrylic, and printed parts |
🔍 Samtop’s 6-Stage QC Workflow
1️⃣ Material Incoming Inspection
| Material | QC Checks |
|---|---|
| MDF | Moisture content, warping check |
| Acrylic | Clarity, cut tolerance, protective film intact |
| PU Wrap | Color match, elasticity, grain consistency |
| Metal | SS304/201 certification, grain direction |
| Resin | Bubble test, mold consistency |
| LED Components | CE/ROHS cert, brightness & voltage test |
✅ All materials tagged with batch ID & linked to project PO.
2️⃣ In-Process Material QC
| Material | What We Check |
|---|---|
| Acrylic | ±0.3mm cut tolerance, no sharp edges |
| MDF / Wood | Clean edge routing, no splinters or chips |
| PU Wrapped Base | Strong bond, no edge curl, corner folding test |
| Metal Inserts | Weld check, brushed direction consistency |
| Fiberglass | Weight-to-strength ratio, no hollow spots |
💡 All dual-material joints (e.g. PU + acrylic) are dry-fit before final bonding.
3️⃣ Assembly + Component Testing
- Magnet Polarity: Jigs used for alignment
- LED Test: Voltage, heat check, color temp (Kelvin)
- Snap Fits: Test 10 cycles for looseness or friction
- Structural Check: Rock, tilt, or torque resistance
✅This ensures every mixed-material retail display performs as designed.
4️⃣ Golden Sample Check
Your golden sample defines:
- Dimensions
- Materials & finishes
- LED specs & brightness
- Logo position (X/Y/Z)
- Assembly logic
All units must match this — verified with photos, caliper checks, and visual QC.
5️⃣ Packaging QC
| Step | Description |
|---|---|
| Foam + Film Layering | Prevents friction between PU, acrylic, and resin |
| Carton Drop Test | 1.2m edge & flat side drops |
| Weight Check | For oversized base stability |
| Labeling | Project ID + batch + handling icons |
📦 Flat-pack designs get extra edge guards & installation guides inside.
6️⃣ Outgoing QA & Spot Testing
- AQL Level 2 sampling
- 5% of units re-assembled
- LED burn-in test for 3 mins
- 360° photo + short video upon request
✅ All checks timestamped, logged & shared with client on request.
