Unshaped Refractories / Refractory Mortars
Insulating Mortar Refractory Mortars
Insulating Mortar is the 40-50% Al₂O₃ grade in Shanker Agencies’ refractory mortars range, rated for continuous service to 1400°C.
Insulating Mortar technical specification
Typical values for Insulating Mortar refractory mortars. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
| Property | Insulating Mortar |
|---|---|
| Al₂O₃ content | 40-50% |
| Bulk density | 1.10 g/cc |
| Application | IFB jointing |
| Max service temperature | 1400°C |
Grade designations and equivalents
How Insulating Mortar is referenced across Indian and export naming conventions.
| SAPL grade code | Insulating Mortar |
| Alumina content | 40-50% Al₂O₃ |
| Max service temperature | 1400°C |
Where Insulating Mortar is used
Full refractory mortars range
Compare Insulating Mortar against every grade SAPL stocks in this family.
| Grade | Al₂O₃ content | Bulk density | Application | Max service temperature |
|---|---|---|---|---|
| Fireclay Mortar | 30-42% | 1.85 g/cc | Fireclay brick jointing | 1400°C |
| 50% Al₂O₃ Mortar | 50-55% | 2.20 g/cc | Mid-range alumina bricks | 1600°C |
| 70% Al₂O₃ Mortar | 68-72% | 2.45 g/cc | High alumina 70% bricks | 1700°C |
| 80% Al₂O₃ Mortar | 78-82% | 2.60 g/cc | High alumina 80/90% bricks | 1750°C |
| Magnesia Mortar | - | 2.70 g/cc | Magnesia / MgO-C brick zones | 1700°C |
| Insulating Mortar | 40-50% | 1.10 g/cc | IFB jointing | 1400°C |
| Acid-Proof Mortar | - | 1.95 g/cc | Acid-proof bricks / tiles | 500°C |
Installation notes
- 1Match the mortar chemistry to the brick, never use fireclay mortar with high alumina bricks above HA-70
- 2Mix dry powder with measured potable water (typically 22–30% by weight) until smooth
- 3Apply joint thickness of 1.5–3 mm using a steel trowel on bedding surface AND brick face
- 4Lay bricks within 10 minutes of mortar application before initial set
- 5Hammer-tap each brick into final position, never adjust after the mortar has stiffened
- 6Allow 24 hours air-set before any heat-up; first heat-up at 25°C/hour to 200°C with a 4-hour soak
- 7For acid-proof furan mortar: 7-day cure at 25°C before any chemical exposure
Disclaimer: values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published manufacturer specifications. They are indicative, not a guarantee. Confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.