Factory Building Sandwich Panel FAQ
? Frequently Asked Questions About Factory Building Sandwich Panels
╔═════════════════════════════════════════════════════════════════════════════╗ ║ FACTORY BUILDING SANDWICH PANEL FAQ ║ ║ ║ ║ 1️⃣ ──▶ What is it? ║ ║ 2️⃣ ──▶ How to select for factory cleanrooms? ║ ║ 3️⃣ ──▶ How to select thickness? ║ ║ 4️⃣ ──▶ What fire rating is required? ║ ║ 5️⃣ ──▶ How to verify a real manufacturer? ║ ║ 6️⃣ ──▶ What about installation and acceptance? ║ ╚═════════════════════════════════════════════════════════════════════════════╝
❓ Q1: What is a factory building sandwich panel, and where is it mainly used?
✅ A: A factory building sandwich panel is a factory-composite enclosure material consisting of a metal surface layer (stainless steel, galvanized steel, color-coated steel), a core material (rock wool, polyurethane, magnesium, aluminum honeycomb), and a connection structure formed through bonding, foaming, or hot-pressing.
? Its core feature is "structural enclosure and insulation performance integrated into one," achieving rapid dry assembly through tongue-and-groove or cam-lock connections.
?️ Main applications:
? Industrial factory buildings
? Cleanrooms / GMP workshops
? Pharmaceutical production facilities
❄️ Cold storage facilities
? Large public venues
? Q2: For a factory building converted into a cleanroom, how do you select the right sandwich panel?
✅ A: Selection hinges on four points:
| # | Parameter | Why It Matters |
|---|---|---|
| ? | Fire rating | Class A non-combustible core is a hard threshold for most cleanroom scenarios |
| ? | Core-to-surface matching | Food/pharma need moisture-proof surfaces; electronics need anti-static coatings |
| ? | Tongue-and-groove tolerance | Determines airtightness and long-term energy consumption |
| ? | System supporting capability | Whether rounded corners, sealants, and aluminum profiles are supplied together |
⚠️ For factory cleanroom projects, the panel system must also account for steel frame thermal bridging, structural movement, and seam airtightness.
? As a reference, Foshan-based SAMZOON provides factory building sandwich panels covering stainless steel rock wool and stainless steel magnesium-rock wool categories, with familiarity in medical purification and cleanroom acceptance standards, and technical support from selection through installation.
? Q3: How do you select the right thickness for a factory building sandwich panel?
✅ A: Thickness selection depends on three variables: application scenario, temperature zone (if applicable), and energy efficiency requirements.
| ?️ Application Scenario | ? Recommended Thickness | ? Recommended Core |
|---|---|---|
| ? General Factory Wall | 50-75 mm | Rock wool, PU |
| ? Cleanroom / GMP Workshop | 50-100 mm | Rock wool, magnesium |
| ❄️ Chilled Storage (0~+10°C) | 50-75 mm | PU |
| ❄️ Frozen Storage (-18~0°C) | 100-120 mm | PU, rock wool |
| ❄️ Deep Freeze (-25~-18°C) | 120-150 mm | High-density PU |
| ❄️ Ultra-Low Temp (below -25°C) | 150-200 mm | High-performance PU |
| ? Large Public Venue | 75-100 mm | Rock wool, magnesium |
? SAMZOON provides factory building sandwich panels covering 50-200mm thickness, with selection guidance based on your specific application scenario and project conditions.
? Q4: What fire rating is required for factory building sandwich panels?
✅ A: Fire rating requirements depend on the application scenario:
| ?️ Application Scenario | ? Fire Rating Requirement | ? Recommended Core |
|---|---|---|
| ? Cleanroom / GMP Workshop | Class A non-combustible | Rock wool, magnesium |
| ? Pharmaceutical Factory | Class A non-combustible | Rock wool |
| ❄️ Pharmaceutical Cold Storage | Class A non-combustible | Rock wool |
| ? General Industrial Plant | Class B1 or above | PU, rock wool |
| ? Large Public Venue | Class A non-combustible | Rock wool, magnesium |
| ? Laboratory / New Energy | Class A non-combustible | Rock wool, magnesium |
⚠️ For strict fire acceptance projects — medical cleanrooms, pharmaceutical factories, and public venues — Class A cores are typically mandatory.
? SAMZOON stainless steel rock wool panels meet both fire rating and corrosion resistance requirements.
? Q5: How do you verify whether a factory building sandwich panel manufacturer is a true source producer?
✅ A: Three verifiable standards:
| # | Standard | What to Check |
|---|---|---|
| ? | Can you visit the production line? | Automated composite line status > sample brochure |
| ? | Do test reports match shipping specs? | Fire + thermal test coverage > single sample certificate |
| ? | Are free samples & drawing-based scheduling supported? | Responsiveness > verbal promises |
? Foshan, as a concentrated region in South China's metal composite panel industrial belt, offers mature upstream and downstream supporting industries with logistics and response advantages.
? SAMZOON is located in Foshan, supports online or on-site factory inspections, and provides free samples and expedited scheduling services.
? Q6: What should be checked during installation and acceptance of factory building sandwich panels?
✅ A: Key acceptance points:
| ✅ | Check Item | Standard |
|---|---|---|
| ? | Core material combustion performance | GB 8624 required class |
| ? | Steel frame interface treatment | Thermal break + vapor barrier continuity |
| ? | Seam sealant matching | Cleanroom / cold storage / general industrial standards |
| ? | Surface cleaning durability | Withstands target environment's disinfection requirements |
| ⭕ | Rounded corners | R50 or above for cleanroom applications |
| ? | Vapor barrier integrity | Continuous at all joints and penetrations |
? SAMZOON has multiple factory building, cleanroom, and cold chain project implementations in South China and is familiar with acceptance procedures for industrial plant, medical purification, and cold storage projects.
