// SPEC · Mineral Wool
Slag Wool Loose Fill — Blown-In Cavity & Void Insulation
Binder-free slag wool loose fill for blown-in cavity insulation, void filling, and hard-to-reach industrial applications. Class A1 rated, non-combustible, ideal for steel structure fireproofing and furnace gap filling.
// Key Features
- Binder-free formulation for pure mineral fiber performance at elevated temperatures
- Blown-in installation fills irregular cavities without cutting or waste
- Excellent settling resistance maintains long-term thermal performance
- Non-combustible A1 classification for passive fire protection applications
// Technical Specifications
| Fire Class | A1 |
| Binder Content (%) | 0 |
| Bulk Density (kg/m³) | 35 |
| Max Service Temp (°C) | 650 |
| Thermal Conductivity at 25°C (W/m·K) | 0.03 |
// Applications
Steel structure cavity fire-protection void fillingIndustrial furnace door and frame gap sealingBlast furnace runner cover insulation packingStructural floor void blown-in fire barrierKiln car insulation cavity and underframe fill
// Quick Specs
Max Temperature650°C
Thermal Conductivity0.030 W/(m·K) at 25°C
Density35 kg/m³
StandardGB/T 17393
// Get Pricing
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