Acid Proof Brick Lining

Acid proof brick lining is a lining brick designed to resist strong corrosive chemicals and strong acids. It is often used in industrial environments that require chemical corrosion protection. Keri can recommend suitable acid resistant brick lining and matching materials based on the customer’s usage scenarios and operating conditions. Keri bricks have excellent performance and long-lasting protection. We offer a variety of sizes and custom brick shapes.

Sizes of Acid Brick Lining

Thickness 15mm	Thickness 20mm	Thickness 30mm	Thickness 40mm	Thickness 50mm	Thickness 65mm
150*75*15； 150*150*15； 200*200*15； 230*113*15； 300*300*15； 300*600*15； 600*600*15；	150*75*20； 150*150*20； 200*200*20； 230*113*20； 300*300*20； 300*600*20； 600*600*20；	150*150*30； 200*200*30； 230*113*30； 300*300*30；	230×113×40;	230×113×50;	230×113×65;

Features of Acid Brick Lining

Main raw materials of Kerui acid proof brick lining procedure are high-quality quartz, feldspar and clay. It forms a large amount of mullite under high temperature roasting. And it contains more than 70% silica. Therefore, this brick has the following good properties.

• High acid resistance;
• Good corrosion resistance except for hydrofluoric acid and hot phosphoric acid;
• Not easy to oxidize;
• High density;
• High wear resistance;
• High compressive strength;
• Low water absorption and impermeability;
• Antifreeze;
• Not easy to be contaminated by the media.
• Inelastic;
• Suitable for a variety of installation processes, it can be hardened in a humid environment or underwater.
• Strong adhesion with a variety of materials;
• Cost saving;
• Easy to clean.

Applications of Kerui Acid Resistant Brick Lining

As a leading acid-resistant material manufacturer, Kerui provides high-performance acid-resistant bricks and customized solutions for corrosion protection needs in different industries. Our products use high-quality raw materials and advanced processes to ensure excellent durability under strong acid, high temperature and complex working conditions, helping customers extend equipment life and reduce maintenance costs.

Acid Proof Brick Lining for Chemical Industry

Kerui offers solutions for the following industries:

• Basic chemical plants: Sulfuric acid plants, hydrochloric acid plants, nitric acid plants, phosphoric acid and phosphorus chemical enterprises, hydrofluoric acid production units.
• Petrochemical plants: Refinery pickling units, ethylene cracking unit quench towers, alkylation reaction zones in aromatics production.
• Fertilizer production enterprises: Urea synthesis towers, compound fertilizer granulation towers, ammonia desulfurization units.
• Pesticide and dye chemical plants.

Application	Acid Tanks/Reactor Linings	Pipeline/Trench Linings
Recommended Sizes (mm)	230×113×65, 300×300×30	150×75×15, 200×200×20
Key Functions	Resists strong acids (sulfuric/hydrochloric), minimizes joint leakage	Adapts to elbow structures, prevents acid wastewater penetration
Special Requirements	Thick bricks require acid-resistant mortar	Small bricks need expansion joints

Acid Proof Brick Lining for Metallurgy/Electroplating Industry

• Electroplating plant: Used for lining electroplating tanks and pickling tanks to prevent corrosion from sulfuric acid, hydrochloric acid, cyanide, etc.
• Steel pickling workshop: Acid-resistant bricks are used to pave pickling tanks and waste gas treatment towers (resistant to hydrochloric acid and sulfuric acid mist corrosion).
• Steel rolling mill: Used for cold rolling acid regeneration system, resistant to hydrofluoric acid corrosion.
• Nonferrous metal smelting plant: Electrolytic cells and flue gas purification towers in copper and zinc smelting (resistant to sulfuric acid and nitric acid corrosion).

Application	Pickling Tanks/Electrolytic cells	Smelter Flue Gas Treatment
Recommended Sizes (mm)	230×113×40/50, 300×300×20	150×150×30, 400×400×20
Key Functions	Withstands HCl/cyanide corrosion, easy-to-clean surface	Resists acidic slag and condensate
Special Requirements	Requires current-resistant materials for electrolytic cells	Must withstand thermal shock (200-600°C)

Acid Proof Brick Lining for Environmental/Energy

• Sewage treatment plant: Acidic wastewater treatment tank, sludge concentration tank (anti-mixed acid and alkali).
• Thermal power plant: Desulfurization tower (FGD) lining, anti-sulfurization and anti-chloride ion corrosion (need to withstand temperatures above 300°C).
• Waste incineration plant: Flue gas purification device (HCl, SO₂ corrosion protection).

Application	Wastewater Treatment Tanks	Power Plant Desulfurization Towers
Recommended Sizes (mm)	230×113×30, 600×600×15	300×300×30, 230×113×65
Key Functions	Resists mixed acid/alkali corrosion, enables fast installation	Resists sulfurous wet gas erosion and chemical corrosion
Special Requirements	Tank floors need FRP reinforcement	Regular joint inspections required

Acid Proof Brick Lining for Food/Pharmaceutical

• Dairy factory: Fermentation tank, CIP cleaning system (glazed tiles are required).
• Pharmaceutical factory: Reactor, solvent recovery equipment (resistant to organic acids such as citric acid and acetic acid).
• Juice/beverage factory: Storage tank, filling line anti-corrosion (resistance to fruit acid corrosion, easy to clean glazed tiles).

Application	Fermentation Tanks/Equipment Linings
Recommended Sizes (mm)	150×150×15 (glazed), 100×100×10
Key Functions	Meets FDA hygiene standards, resists organic acids
Special Requirements	Non-porous surface for sterilization

Acid Proof Brick Lining for Other Industry

• Chemical fiber plant: Acid bath in viscose fiber production (resistance to sulfuric acid + hydrogen sulfide combined corrosion).
• Paper mill: Bleaching workshop, waste liquid treatment pool (resistance to chlorine-alkali corrosion).
• Laboratory: Fume hood, waste liquid collection pool.

Application	Lab Countertops/Floors	Acidic Soil Foundations
Recommended Sizes (mm)	80×80×10, 200×200×15	230×113×60
Key Functions	Wear-resistant, easy to clean	Prevents acidic groundwater from corroding concrete
Special Requirements	Glazed surfaces prevent reagent penetration	Requires asphalt isolation layer

Types of Kerui Acid Brick Lining

Types	Descriptions	Advantages
Plain Unglazed Type	There is no glaze on the surface of this type of acid resistant tile linings.	Non-slip; high hardness; Wear resistance;
Glazed Type	The surface of this type of brick is glazed. The back of the product is added with a dovetail groove.	Easy to clean; Low density and high hardness; Be convenient for firm bonding with acid resistant mud during construction and is not easy to fall off. Easy to clean; Extend the service life of the project.

Parameters of Acid Proof Brick Lining

Kerui offers the following standard types of acid resistant bricks lining. Please refer to the specifications:

Grade	Z-1
Al₂O₃, %	20–30
SiO₂, %	60–70
Fe₂O₃, %	≤2.0
Na₂O + K₂O, %	≤5.0
CaO + MgO, %	≤2.0
Water Absorption, %	≤0.2
Bending Strength, MPa	≥58.8
Bulk Density, g/cm³	2.3-2.5
Acid Resistance, %	≥99.8

Good Reviews on Kerui Brick Lining

“Kerui sent a sample first. After our confirmation, they sent a large number of acid resistant bricks. The quality is very good. The acid-resistant bricks have standard in size, and have a very positive color. The service attitude is good and I am very happy.”

“The acid resistant bricks have very good bonding effect, high acid resistance, smooth surface, and are very easy to use.”

“This brick is of good quality, with a test report. And this brick is in line with national standards. The water absorption rate is less than 0.5%, the color is consistent without color difference, and the bricks from well-known manufacturers are different.”

“We paved 1500 square meters of anti-corrosion floor with anti-corrosion and acid resistant bricks lining. Kerui was awesome. The test data passed and the quality was very good. Kerui was very professional and answered all questions. The delivery speed was great.”

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