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Unshaped Refractories / Refractory Mortars

Magnesia Mortar Refractory Mortars

Magnesia Mortar is the 85-92% MgO grade in Shanker Agencies’ refractory mortars range, rated for continuous service to 1700°C.

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Magnesia Mortar grade refractory mortars supplied by Shanker Agencies
Grade
Magnesia Mortar
MgO content
85-92%
Max service temperature
1700°C
Bulk density
2.70 g/cc

Magnesia Mortar technical specification

Typical values for Magnesia Mortar refractory mortars. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.

MgO content
85-92%
Bulk density
2.70 g/cc
Application
Magnesia / MgO-C brick zones
Max service temperature
1700°C

Where Magnesia Mortar is used

Brick jointing and bedding for refractory liningsSurface finishing of cast or rammed refractory shapesExpansion joint filling in long brick coursesHot-face patching of small eroded areasAnchor pocket filling around stainless steel anchorsBoiler refractory brick laying, water wall + roofAcid plant tile and brick lining (acid-proof grades)

Is Magnesia Mortar right for your application?

  • Rated for continuous service up to 1700°C.
Compare Magnesia Mortar with other grades▾

Compare Magnesia Mortar against every grade SAPL stocks in this family.

Swipe to compare grades

GradeMgO contentBulk densityApplicationMax service temperature
Fireclay Mortar-1.85 g/ccFireclay brick jointing1400°C
50% Al₂O₃ Mortar-2.20 g/ccMid-range alumina bricks1600°C
70% Al₂O₃ Mortar-2.45 g/ccHigh alumina 70% bricks1700°C
80% Al₂O₃ Mortar-2.60 g/ccHigh alumina 80/90% bricks1750°C
Magnesia Mortarthis grade85-92%2.70 g/ccMagnesia / MgO-C brick zones1700°C
Insulating Mortar-1.10 g/ccIFB jointing1400°C
Acid-Proof Mortar-1.95 g/ccAcid-proof bricks / tiles500°C
← 80% Al₂O₃ MortarInsulating Mortar →

Send the drawing, dimensions, application and quantity for Magnesia Mortar refractory mortars. Our technical team reviews the requirement and advises on grade and fulfilment route.

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Grade designations & equivalents▾

How Magnesia Mortar is referenced across Indian and export naming conventions.

SAPL grade codeMagnesia Mortar
Max service temperature1700°C

Installation notes

  1. 1Match the mortar chemistry to the brick, never use fireclay mortar with high alumina bricks above HA-70
  2. 2Mix dry powder with measured potable water (typically 22–30% by weight) until smooth
  3. 3Apply joint thickness of 1.5–3 mm using a steel trowel on bedding surface AND brick face
  4. 4Lay bricks within 10 minutes of mortar application before initial set
  5. 5Hammer-tap each brick into final position, never adjust after the mortar has stiffened
  6. 6Allow 24 hours air-set before any heat-up; first heat-up at 25°C/hour to 200°C with a 4-hour soak
  7. 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.