// SPEC · Monolithic Refractories
Perlite Lightweight Castable Ultra-Low Density (Max 900°C)
Perlite-aggregate lightweight castable, ultra-low 0.5 g/cm³ density, max 900°C. Outstanding thermal insulation for industrial boiler backup, hot air duct insulation, and drying oven shell linings.
// Key Features
- Ultra-low 0.5 g/cm³ bulk density minimising dead load on supporting furnace structures
- Lowest thermal conductivity class enabling maximum energy conservation in backup lining
- Simple on-site mixing and casting without specialised pumping equipment
- Cost-effective natural perlite aggregate reducing material cost for large-area insulation
// Technical Specifications
| Cold CCS (MPa) | 1.5 |
| Water Addition (%) | 60–75 |
| Bulk Density (g/cm³) | 0.5 |
| Max Service Temp (°C) | 900 |
| Thermal Conductivity (W/m·K) | 0.12 |
// Applications
Industrial boiler furnace wall outer insulating backup layerHot air pipe and ductwork external insulation castingDrying oven and curing oven insulating shell liningChimney and exhaust flue inner insulating monolithicLadle and tundish preheating station insulating backup
// Quick Specs
Max Temperature900°C
Thermal Conductivity0.12 W/(m·K) at 300°C
Density0.5 g/cm³
StandardGB/T 3002
// Get Pricing
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