Basic Information of Types of Refractory Products
Articles
Installation Methods: Part 2: Types of Installation Methods of Monolithics/Castables
Types of Refractory Castables
- Conventional, High Cement
- Low Cement
- Ultra-Low Cement
- No Cement (Colloidal Silica, Phosphate Bonded)
- Basic Castables (Magnesite – Chrome)
- Insulating (20pcf to 90 pcf categories)
Castable Refractory Classifications
- Conventional / Regular Castable =>2.5% CaO
- Low Cement = 1.0% to 2.5% CaO
- Ultra-Low Cement = 0.2% to 1.0% CaO
- No Cement Castables = up to 0.2% CaO
No Cement
- Castables and gun mixes based on colloidal silica and phosphate-based binders
Brands Names: EZ EST (Colloidal Silica Bonded) and Rescobond (Phosphate Bonded)
Basic Castables and Gun Mixes
- 95 to 97% MgO-based; Dead Burned Magnesia
- Chrome Ore-Based
- Fused magnesia-Chrome Grain-Based
- Chemically Bonded
- Phosphate Bonded
- Silicate Bonded
Brand Names: Permanente, Rescomag, Permagun, Permacast, CP-40
Lightweight or Insulating Castables
- Can be cast, gunned, or pumped
- Cement bonded
- Contain lightweight aggregate
- Densities range 20 pcf to 90 pcf
- Gunned densities higher than cast density
Brand Names: Rescocast, Rescolite, Quiklite
Precast Shapes
- Cast into molds and shipped as a shape
- 45% to 98% alumina, alumina resistant
- Cement bonded
- Many different shapes
Brand Names: Uniform, Furnaform, Mighty Fibre, Mighty Agg
Plastic Moldables
- Phosphate bonded (50% to 90% Alumina)
- Air Setting (45% to 90% Alumina)
- Fine-Grained for Patching
Brand Names: Rescoram, Ref Ram, Ref Patch, Corpatch
Gunning Mixes
- Sprayable” using compressed air
- 45% to 94% Alumina
- Magnesite, Fused Magnesia-Chrome
- Phosphate Bonded, Colloidal silica Bonded
- Cement Bonded: High Cement, Low Cement
Brand Names: HM, Progun, Rescobond G, Permacast, Permagun, Rescocast, QuikTurn G, EZ EST
Wet Mortars in Pails
- Air setting and phosphate bonded
- 60% to 90% silica
- 45% to 90% alumina, alumina-chrome
Brand Names: Ladlelock – Rescoset, Adament – Adacore – Adaphos
Dry Mortars in Bags
- Air setting, 40% to 85% alumina
- Heat setting, 33% to 60% alumina
- Basic (Magnesite or Chrome Ore)