// SPEC · Monolithic Refractories
Phosphate-Bonded Refractory Mortar Al2O3 70%
Phosphate-bonded refractory mortar with 70% Al2O3 for high-strength hot repair of blast furnaces, torpedo ladles, and steel ladles. Fast chemical hardening without kiln drying enables immediate service recovery.
// Key Features
- High cold and hot bond strength for structurally demanding hot repair applications
- Fast chemical hardening without requirement for kiln pre-drying
- Excellent adhesion to worn and oxidized refractory surfaces in hot state
- Superior joint penetration resistance for tight sealing under metallostatic pressure
// Technical Specifications
| Al2O3 (%) | ≥70 |
| Consistency (mm) | 90–125 |
| Water Addition (%) | 15–20 |
| Bond Strength (MPa) | ≥5.0 |
| Max Service Temp (°C) | 1650 |
// Applications
Blast furnace tuyere zone and raceway hot repairTorpedo car (torpedo ladle) lining joint maintenanceSteel ladle lip ring and gas purging plug area sealingIron runner and trough refractory emergency repairReheat furnace skid pipe encasement and door frame sealing
// Quick Specs
Max Temperature1650°C
Density2.30 g/cm³
StandardGB/T 22459
// Get Pricing
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