Refractory mortars
Mortar is a dry refractory mix for the mortar used to lay refractory bricks. Mortar is chosen with the same composition as the brick so that the joint works at the same temperature.
МШ fireclay mortars are made to GOST 6137 "Aluminosilicate refractory mortars"; the number in the grade is the minimum alumina content, %. МКВ-72 and mullite-silica mortars — to manufacturers' specifications.
Grades and types
Fireclay mortar МШ-28, МШ-31, МШ-36, МШ-39
To GOST 6137. Fireclay mortars for laying fireclay bricks; the number in the grade is the minimum alumina content, %. The hotter the zone, the higher the mortar grade. Supplied as a dry mix; the mortar is prepared on site.
High-alumina mortar МКВ-72
To manufacturer's specifications. High-alumina mortar for laying mullite-corundum and high-alumina products. The joint composition is close to that of the brick, so the masonry works as a single whole at high temperatures.
Mullite-silica mortar
To manufacturer's specifications. Mortar for laying mullite-silica refractories. It is matched to specific products — state the brick grade in your request.
Can’t find the grade you need? Write to us — we supply other items too.
In brief
| Parameter | Value |
|---|---|
| Standard | fireclay МШ — GOST 6137; МКВ-72 and mullite-silica — manufacturers' specifications |
| Grades | МШ-28, МШ-31, МШ-36, МШ-39, МКВ-72, mullite-silica |
| Designation | the number in the grade is the minimum alumina content, % |
| For which brick | МШ — fireclay; МКВ-72 — mullite-corundum and high-alumina |
| Supply | under contract with legal entities, delivery across Kazakhstan |
How to choose a grade
Mortar is matched to the brick it is used to lay: the joint composition should be close to that of the product. Fireclay bricks take МШ fireclay mortar, mullite-corundum and high-alumina products take МКВ-72.
The higher the number in the МШ grade, the more alumina the mortar contains and the hotter the zone it can withstand.
Frequently asked questions
Which mortar is needed for ША brick?
МШ fireclay mortar to GOST 6137. The grade (МШ-28…МШ-39) is chosen by the brick grade and zone temperature.
How does mortar differ from refractory clay?
Mortar is a ready-made dry mix for laying refractories whose composition is set by a standard or specification. Refractory clay is only a binding component used in masses and mortars.
What is the mortar consumption?
It depends on the brick grade and joint thickness; the consumption rate is given by the manufacturer. Send us the number of bricks and the grade — we will calculate it from the certificate.
How can an enterprise order mortar?
Send a request with the grade, quantity and delivery city or attach a specification. We will prepare a commercial offer, sign a contract and deliver the mortar across Kazakhstan.
Other sections
Send a request
Send grades and quantities or a specification via WhatsApp or email — we will prepare an offer. We reply during business hours, Mon–Fri 9:00–18:00.
Write on WhatsApp Send an email +7 (778) 700-26-38
Requests sent outside business hours are processed on the next business day.