Acid-resistant bricks
Acid-resistant bricks are used for lining tanks and vessels, floors and channels of chemical plants, flues and chimneys — wherever the masonry is in contact with acids.
The bricks are made to GOST 474 in classes A, B and C; straight brick КП is 230×113×65 mm. Arzamit-5 putty or acid-resistant liquid-glass mortars are used for laying.
Grades and types
Straight brick КП
To GOST 474, classes A, B, C; size 230×113×65 mm. The most common shape: floors, walls and channels of chemical plants, lining of rectangular tanks. Laid with Arzamit-5 putty or liquid-glass mortars.
End-wedge brick КТ
To GOST 474, classes A, B, C. End-wedge brick for transitions, corners and curved sections where straight brick does not fit without trimming.
Side-wedge brick КР
To GOST 474, classes A, B, C. Side-wedge brick for curved elements: lining of chimneys and round channels.
Radial transverse brick КРП
To GOST 474, classes A, B, C. Radial transverse brick for lining cylindrical tanks, columns and pipes; the number is selected by diameter.
Radial longitudinal brick КРПР
To GOST 474, classes A, B, C. Radial longitudinal brick for cylindrical surfaces; the number is selected by the vessel diameter.
Can’t find the grade you need? Write to us — we supply other items too.
In brief
| Parameter | Value |
|---|---|
| Standard | GOST 474 |
| Classes | A, B, C |
| Shapes | КП straight 230×113×65 mm, КТ end-wedge, КР side-wedge, КРП radial transverse, КРПР radial longitudinal |
| Applications | protection of equipment and structures in acidic environments, floors, tanks, flues, chimneys |
| Laying | Arzamit-5 or liquid-glass mortars |
| Supply | under contract with legal entities, delivery across Kazakhstan |
How to choose a grade
The shape is chosen by the masonry section: КП for floors, walls and channels; КТ and КР for corners, transitions and curves; КРП and КРПР for cylindrical tanks, columns and pipes.
The class (A, B, C) is chosen by the aggressiveness of the environment: the classes differ in acid resistance, water absorption and strength.
Laying and installation
Acid-resistant bricks are laid with Arzamit-5 putty or with liquid-glass mortars — the choice depends on the environment. Arzamit-5 and putties →
Frequently asked questions
What is the difference between classes A, B and C?
The GOST 474 requirements for acid resistance, water absorption and strength. The class is chosen by the aggressiveness of the environment and the load.
Which brick shape should I choose?
КП straight — for floors, walls and channels; КТ and КР — for corners and curves; КРП and КРПР — for cylindrical tanks, columns and chimneys.
What should acid-resistant bricks be laid on?
On Arzamit-5 acid-resistant putty or on liquid-glass mortars. The choice depends on the environment — we will advise.
Which brick is needed for a chimney?
Acid-resistant brick to GOST 474: the standard explicitly provides for chimney lining. For the chimney shaft, side-wedge КР and radial shapes are used; the class is chosen by the aggressiveness of the gases.
How can an enterprise order acid-resistant bricks?
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 bricks 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.