What’s Your Quality Control Process for Mixed-Material Displays?
Our QC Process for Mixed-Material Retail Displays
Table of Contents
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.
📦 Real Case: Fragrance Glorifier with LED, Acrylic, PU
Client Need:
- 3-part display with resin logo bar, underglow LED, acrylic tray on PU base
- Visual impact + easy tool-free install
Risks:
- Misaligned magnets
- Overheating LED cable
- Acrylic too tight → risk of stress crack
- PU wrap inconsistent at corners
What Samtop Delivered:
- CNC-wired LED path with air venting
- +0.6mm tray margin
- Separate jigs for logo fit
- QC video shared before ship
✅ 80 stores received units
✅ 0 issues or returns
✅ Client re-ordered 20% more for Phase 2
The final product delivered a flawless mixed-material retail display solution.
✅ Who Benefits from Samtop’s QC?
| Audience | Why It Matters |
|---|---|
| VM Teams | Need 100% consistency store-to-store |
| Procurement Managers | Looking for documentation + visual QC |
| Agencies | Reducing back-and-forth with brands |
| Premium Brands | Can’t risk poor fit, broken logos, or lighting issues |
❓FAQ Section
How do you control fit across mixed materials like acrylic and PU?
We pre-fit all components using tolerance-adjusted CNC files. Acrylic expands — PU adds thickness — we account for both with 3D CAD logic.
Can you do QC without me visiting the factory?
Yes. We handle mixed-material retail display QC even if you’re not on site.
Provide:
- Live video inspections
- QC photo packs
- LED power-on test videos
- Packing step-by-step photos
What happens if a batch fails QC?
Before we ship any mixed-material retail display, each is spot-tested visually and functionally.
Do you log material batch & origin?
Yes. Each material batch is traceable with certs like FSC, REACH, RoHS — stored digitally and matched to your project PO.
Samtop Display — Engineered Precision for Every Mixed-Material Retail Display.
www.samtop.com