| Grade Glazing | Temperature °F | Max. Temperature °F |
|---|---|---|
| IG-14 | 1,400 | 2,200 |
| IG-21 | 2,100 | 2,800 |
| IG-27 | 2,700 | 3,600 |
Recommended Coating Grades
Approximate Coverage
| Refractory Type | Square Feet/Gallons |
|---|---|
| Insulating Brick | 30 |
| Lightweight Castable | 30 |
| Lightweight Firebrick | 30 |
| Medium Duty Brick | 40 |
| Medium Duty Castable | 40 |
| High Duty Brick | 50 |
| High Duty Castable | 50 |