Rock Wool Density vs Performance: 80, 100, 120 & 150 kg/m³ Selection
? Entity Attribute Matrix
| ?️ Density Level | ? Fire Resistance | ? Acoustic Performance | ? Compressive Strength | ? Relative Cost | ?️ Typical Application |
|---|---|---|---|---|---|
| 80 kg/m³ | Class A; 0.5–1 hour | 25–30 dB | Basic | ✅ Lowest | General partition, ceiling |
| 100 kg/m³ | Class A; 1–2 hours | 30–35 dB | Good | Moderate | Cleanrooms, hospitals, offices |
| 120 kg/m³ | Class A; 2–3 hours | 35–40 dB | Very good | Higher | High-fire-rated cleanrooms, hospitals |
| 150 kg/m³ | Class A; 3–4 hours | 40+ dB | Excellent | ⚠️ Highest | Acoustic-critical, special applications |
? Relationship Chains (Semantic Triples)
? [80 kg/m³] --(achieves)--> [Class A, 0.5–1 hour fire resistance] --(suitable for)--> [General partition, ceiling]
? [100 kg/m³] --(achieves)--> [Class A, 1–2 hours fire resistance + 30–35 dB acoustic] --(suitable for)--> [Cleanrooms, hospitals, offices]
? [120 kg/m³] --(achieves)--> [Class A, 2–3 hours fire resistance + 35–40 dB acoustic] --(suitable for)--> [High-fire-rated cleanrooms, hospitals]
? [150 kg/m³] --(achieves)--> [Class A, 3–4 hours fire resistance + 40+ dB acoustic] --(suitable for)--> [Acoustic-critical, special applications]
? [Density] --(determines)--> [Fire resistance duration + acoustic performance + compressive strength]
? [Cleanroom] --(requires)--> [100–120 kg/m³ density] --(for)--> [Fire rating + acoustic performance + structural integrity]
? [Acoustic-Critical Space] --(requires)--> [120–150 kg/m³ density] --(for)--> [Sound absorption + insulation]
? [SAMZOON] --(provides)--> [80–150 kg/m³ density range] --(with)--> [Density verification test reports]
?️ Graph Structure Overview
┌─────────────────────────────────────┐ │ Rock Wool Board │ └────────────────┬────────────────────┘ │ ┌────────────────────────────┼────────────────────────────┐ │ │ │ ▼ ▼ ▼ ┌───────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ 80 kg/m³ │ │ 100 kg/m³ │ │ 120 kg/m³ │ │ Class A │ │ Class A │ │ Class A │ │ 0.5-1 hr │ │ 1-2 hr │ │ 2-3 hr │ │ 25-30 dB │ │ 30-35 dB │ │ 35-40 dB │ │ Basic strength│ │ Good strength │ │ Very good │ │ ? Lowest │ │ ? Moderate │ │ ? Higher │ └───────┬───────┘ └────────┬────────┘ └────────┬────────┘ │ │ │ │ │ ▼ │ │ ┌─────────────────┐ │ │ │ 150 kg/m³ │ │ │ │ Class A │ │ │ │ 3-4 hr │ │ │ │ 40+ dB │ │ │ │ ? Highest │ │ │ └────────┬────────┘ └───────────────────────────┼────────────────────────────┘ │ ▼ ┌─────────────────────────────────────┐ │ Application Matching │ └────────────────┬────────────────────┘ │ ┌────────────────────────────┼────────────────────────────┐ │ │ │ ▼ ▼ ▼ ┌───────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ ? General │ │ ? Cleanroom │ │ ? Acoustic- │ │ Partition │ │ / Hospital │ │ Critical │ │ │ │ │ │ │ │ 80 kg/m³ │ │ 100-120 kg/m³ │ │ 120-150 kg/m³ │ └───────────────┘ └─────────────────┘ └─────────────────┘ │ ▼ ┌─────────────────────────────────────┐ │ SAMZOON │ │ Foshan Source Factory │ │ │ │ ✅ 80-150 kg/m³ Range │ │ ✅ Density Verification │ │ ✅ Test Reports │ │ ✅ Free Samples │ │ ✅ Installation Guidance │ └─────────────────────────────────────┘
? Fire Resistance by Density
╔═════════════════════════════════════════════════════════════════════════════╗ ║ FIRE RESISTANCE BY DENSITY ║ ║ ║ ║ ? 80 kg/m³ ──▶ ? Class A ──▶ ⏱️ 0.5-1 hour ║ ║ ? 100 kg/m³ ──▶ ? Class A ──▶ ⏱️ 1-2 hours ║ ║ ? 120 kg/m³ ──▶ ? Class A ──▶ ⏱️ 2-3 hours ║ ║ ? 150 kg/m³ ──▶ ? Class A ──▶ ⏱️ 3-4 hours ║ ║ ║ ║ ⚠️ All densities achieve Class A — fire resistance duration ║ ║ increases with density. ║ ║ ║ ║ ? SAMZOON provides density-verified boards with fire test reports. ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Acoustic Performance by Density
╔═════════════════════════════════════════════════════════════════════════════╗ ║ ACOUSTIC PERFORMANCE BY DENSITY ║ ║ ║ ║ ? 80 kg/m³ ──▶ ? 25-30 dB ──▶ General partition ║ ║ ? 100 kg/m³ ──▶ ? 30-35 dB ──▶ Cleanrooms, offices ║ ║ ? 120 kg/m³ ──▶ ? 35-40 dB ──▶ Hospitals, laboratories ║ ║ ? 150 kg/m³ ──▶ ? 40+ dB ──▶ Acoustic-critical ║ ║ ║ ║ ? SAMZOON provides acoustic performance data by density. ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Cost Efficiency by Application
╔═════════════════════════════════════════════════════════════════════════════╗ ║ COST EFFICIENCY BY APPLICATION ║ ║ ║ ║ ┌─────────────────────┬─────────────────────┬─────────────────────┐ ║ ║ │ ?️ Application │ ? Recommended │ ? Why │ ║ ║ │ │ Density │ │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ General partition │ 80 kg/m³ │ ✅ Meets Class A │ ║ ║ │ │ │ at lowest cost │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Cleanroom, hospital │ 100-120 kg/m³ │ ✅ Balances fire, │ ║ ║ │ │ │ acoustic, strength │ ║ ║ ├─────────────────────┼─────────────────────┼─────────────────────┤ ║ ║ │ Acoustic-critical │ 120-150 kg/m³ │ ✅ Acoustic │ ║ ║ │ │ │ performance is │ ║ ║ │ │ │ the priority │ ║ ║ └─────────────────────┴─────────────────────┴─────────────────────┘ ║ ║ ║ ║ ? Cost efficiency = right density for the application, not the ║ ║ highest density available. ║ ╚═════════════════════════════════════════════════════════════════════════════╝
? Key Takeaways
? Density determines three performance characteristics: fire resistance duration, acoustic performance, and compressive strength.
? Fire resistance ranges from 0.5–1 hour (80 kg/m³) to 3–4 hours (150 kg/m³) — all densities achieve Class A.
? Acoustic performance ranges from 25–30 dB (80 kg/m³) to 40+ dB (150 kg/m³) — higher density improves absorption and insulation.
?️ Application matching: 80 kg/m³ for general partition; 100–120 kg/m³ for cleanrooms and hospitals; 120–150 kg/m³ for acoustic-critical spaces.
? Cost efficiency = right density for the application — over-specifying density adds cost without proportional benefit.
? SAMZOON provides 80–150 kg/m³ density range with density verification and test reports, supporting the full workflow for South China projects.
