Polyurethane Sandwich Panel vs Rock Wool Sandwich Panel Performance Data Shee
? Comparison Matrix
| ? Dimension | ? Polyurethane Sandwich Panel | ? Rock Wool Sandwich Panel |
|---|---|---|
| ?️ Thermal Conductivity | ✅ 0.022-0.026 W/(m·K) | ⚠️ 0.040-0.045 W/(m·K) |
| ? Fire Rating | ⚠️ Class B1/B2 | ✅ Class A non-combustible |
| ⏱️ Fire Resistance | 0.5-1 hour | ✅ 1-4 hours |
| ? Moisture Resistance | ✅ Closed-cell; excellent | ⚠️ Requires hydrophobic treatment (≥98%) |
| ⚖️ Weight | ✅ Lighter | ⚠️ Heavier |
| ? Thickness for Same Thermal Performance | ✅ Thinner (e.g., 100mm for -18°C) | ⚠️ Thicker (150-180mm for -18°C) |
| ? Cost per m² | Lower for thermal-critical applications | Higher for Class A fire-rated applications |
| ? Machinability | ✅ Easier to cut and process | ⚠️ More difficult |
| ?️ Typical Application | Cold storage, chilled rooms | Fire-rated cold storage, pharmaceutical cold chain |
| ⚠️ Risk | Fire rating limitation (Class B1/B2) | Moisture absorption if hydrophobic treatment insufficient |
? Relationship Chains (Semantic Triples)
? [Polyurethane Sandwich Panel] --(differentiator)--> [Superior thermal insulation]
? [Rock Wool Sandwich Panel] --(differentiator)--> [Class A fire rating]
? [Polyurethane Sandwich Panel] --(achieves)--> [0.022-0.026 W/(m·K)] --(via)--> [Closed-cell PU foam]
? [Rock Wool Sandwich Panel] --(achieves)--> [0.040-0.045 W/(m·K)]
? [Polyurethane Sandwich Panel] --(requires)--> [Thinner panels for same thermal performance]
? [Rock Wool Sandwich Panel] --(requires)--> [Thicker panels for same thermal performance]
? [Cold Storage] --(requires)--> [Thermal insulation + moisture resistance] --(matched by)--> [Polyurethane Sandwich Panel]
? [Fire-Rated Cold Storage] --(requires)--> [Class A fire rating + thermal insulation] --(matched by)--> [Rock Wool Sandwich Panel]
? [Pharmaceutical Cold Chain] --(requires)--> [Class A fire rating + GMP compliance] --(matched by)--> [Rock Wool Sandwich Panel]
? [Food Processing] --(requires)--> [Thermal insulation + moisture resistance + cleanability] --(matched by)--> [PU or Rock Wool Panel]
? [SAMZOON] --(provides)--> [Both PU and rock wool sandwich panels] --(with)--> [Selection guidance based on application]
?️ Comparison Overview
┌─────────────────────────────────────┐ │ PANEL COMPARISON │ └────────────────┬────────────────────┘ │ ┌────────────────────────────┼────────────────────────────┐ │ │ │ ▼ ▼ ▼ ┌───────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ ? PU │ │ ? Rock Wool │ │ ? SAMZOON │ │ Sandwich │ │ Sandwich │ │ Offers Both │ │ Panel │ │ Panel │ │ │ │ │ │ │ │ │ │ ✅ Best │ │ ✅ Class A │ │ ✅ Selection │ │ thermal │ │ fire rating │ │ guidance │ │ ✅ Closed- │ │ ✅ Longer fire │ │ ✅ Free samples │ │ cell │ │ resistance │ │ ✅ Test reports │ │ moisture │ │ ⚠️ Requires │ │ │ │ resistance │ │ hydrophobic │ │ │ │ ⚠️ Class B1/B2│ │ treatment │ │ │ │ fire rating│ │ ⚠️ Heavier │ │ │ └───────────────┘ └─────────────────┘ └─────────────────┘
?️ Thermal Performance Comparison
╔═════════════════════════════════════════════════════════════════════════════╗ ║ THERMAL PERFORMANCE COMPARISON ║ ║ ║ ║ ┌─────────────────────┬─────────────────────┬─────────────────────┐ ║ ║ │ ? Dimension │ ? PU Panel │ ? Rock Wool Panel │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Thermal │ ✅ 0.022-0.026 │ ⚠️ 0.040-0.045 │ ║ ║ │ Conductivity │ W/(m·K) │ W/(m·K) │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Thickness for │ ✅ 100mm │ ⚠️ 150-180mm │ ║ ║ │ -18°C Storage │ │ │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Thickness for │ ✅ 150mm │ ⚠️ 200mm+ │ ║ ║ │ -25°C Storage │ │ │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Energy Efficiency │ ✅ Better │ Moderate │ ║ ║ └─────────────────────┴─────────────────────┴─────────────────────┘ ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Fire Performance Comparison
╔═════════════════════════════════════════════════════════════════════════════╗ ║ FIRE PERFORMANCE COMPARISON ║ ║ ║ ║ ┌─────────────────────┬─────────────────────┬─────────────────────┐ ║ ║ │ ? Dimension │ ? PU Panel │ ? Rock Wool Panel │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Fire Rating │ ⚠️ Class B1/B2 │ ✅ Class A │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Fire Resistance │ ⚠️ 0.5-1 hour │ ✅ 1-4 hours │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Smoke Generation │ Moderate │ ✅ Low │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Best For │ Standard cold │ Fire-rated cold │ ║ ║ │ │ storage │ storage, pharma │ ║ ║ └─────────────────────┴─────────────────────┴─────────────────────┘ ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Moisture Resistance Comparison
╔═════════════════════════════════════════════════════════════════════════════╗ ║ MOISTURE RESISTANCE COMPARISON ║ ║ ║ ║ ┌─────────────────────┬─────────────────────┬─────────────────────┐ ║ ║ │ ? Dimension │ ? PU Panel │ ? Rock Wool Panel │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Moisture │ ✅ Closed-cell │ ⚠️ Requires │ ║ ║ │ Resistance │ structure │ hydrophobic ≥98% │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ High Humidity │ ✅ Excellent │ ⚠️ Requires careful │ ║ ║ │ Performance │ │ sealing │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Mold Resistance │ ✅ Excellent │ ⚠️ Requires │ ║ ║ │ │ │ hydrophobic │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Best For │ Cold storage, │ Fire-rated cold │ ║ ║ │ │ food processing │ storage │ ║ ║ └─────────────────────┴─────────────────────┴─────────────────────┘ ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Cost Comparison
╔═════════════════════════════════════════════════════════════════════════════╗ ║ COST COMPARISON ║ ║ ║ ║ ┌─────────────────────┬─────────────────────┬─────────────────────┐ ║ ║ │ ? Cost Factor │ ? PU Panel │ ? Rock Wool Panel │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Initial Unit Price │ ✅ Lower │ Moderate │ ║ ║ │ (per m²) │ │ │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Cost per m² for │ ✅ Lower (thinner │ ⚠️ Higher (thicker │ ║ ║ │ Same Thermal │ panels sufficient) │ panels required) │ ║ ║ │ Performance │ │ │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Fire Compliance │ ⚠️ Higher cost for │ ✅ Lower cost for │ ║ ║ │ │ Class A │ Class A │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Lifecycle Cost │ ✅ Lower for │ Lower for fire- │ ║ ║ │ │ thermal-critical │ critical projects │ ║ ║ └─────────────────────┴─────────────────────┴─────────────────────┘ ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Key Takeaways
? Polyurethane sandwich panels offer superior thermal insulation (0.022-0.026 W/(m·K)) and excellent moisture resistance — suitable for standard cold storage and thermal-critical applications.
? Rock wool sandwich panels offer Class A non-combustible fire rating and longer fire resistance (1-4 hours) — suitable for fire-rated cold storage and pharmaceutical cold chain.
? Thickness comparison: PU requires 100mm for -18°C storage; rock wool requires 150-180mm for the same performance.
? Moisture resistance: PU offers closed-cell structure with excellent moisture resistance; rock wool requires hydrophobic treatment (≥98%).
? Cost: PU panels offer lower cost per m² for thermal-critical applications; rock wool panels offer lower cost for Class A fire-rated applications.
? SAMZOON provides both PU and rock wool sandwich panels, with selection guidance based on fire acceptance path and thermal requirements for South China cold chain projects.
