Silica Insulation Brick

Silica insulation brick has excellent fire resistance and the load softening temperature is as high as 1620℃. Therefore, we can use it for a long time under high temperature conditions (1500℃~1550℃) without contact with slag.

  • SiO2(≥): 91%
  • Bulk Density: 1.00g/cm3 – 1.20g/cm3
  • Refractoriness Underload: 1480℃ – 1560℃
  • Cold Crushing Strength: 2.0MPa – 5.0MPa

KERUI Silica Insulation Brick

The Advantage of Silica Insulation Brick

Low Thermal Conductivity
Great Thermal Mechanical Strength
Good Thermal Stability
Strong Acid Slag Erosion Resistance

Stable Structure

Kerui silica insulation fire brick can maintain shape and strength for a long time in high temperature environments. Its unique material composition and manufacturing process enable it to withstand stresses caused by thermal expansion and contraction. So, this reduces structural deformation and damage caused by temperature changes.

Not Easily Cracking

The thermal insulation silica brick has excellent crack resistance. It can effectively prevent the occurrence and expansion of cracks. Its structural design gives it high tensile strength and impact resistance. Therefore, silica insulation bricks can withstand the influence of external forces and thermal stress and increase their service life.

Energy Saving

Using silica insulation brick can effectively insulate, reduce heat loss and improve energy efficiency. It has low thermal conductivity and excellent thermal insulation properties. So, it can prevent heat conduction and radiation and provide an excellent thermal insulation effect. That is to say, using Kerui insulation brick can save production costs.

Protect Industrial Equipment

We also widely use light weight silica brick to protect industrial equipment from damage caused by high temperatures, corrosion and wear. It has excellent fire resistance and chemical corrosion resistance. In other words, light weight silica brick can effectively isolate and protect equipment surfaces and reduce maintenance costs.

Kerui Silica Insulation Brick
Silica Insulation Brick for Sale

Technical Specification of Silica Insulation Brick

ω (SiO2) ≥/%91919191
Bulk Density ≥/(g/cm³)1.00 1.10 1.151.20
Cold Crushing Strength ≥/MPa2.0 3.0 5.0 5.0
Permanent Linear Change On Reheating ≤/℃1500℃, 2h//0.50.5
1450℃, 2h0.50.5//
0.1MPa Refractoriness Underload ≥/℃1400142015001520
Thermal Conductivity Coefficient ≤/[W/(m·K)]
(Average Temperature 350±10℃)
0.550.60 0.650.70

Tips: This table is formulated with reference to Chinese refractory industry standards. Contact us for more information.

Feedback from Customers of Using Kerui Silica Insulation Brick

The following is some real feedback from customers after using Kerui light weight silica brick. In addition, Kerui lightweight firebrick is also suitable for the metallurgical industry, power industry and ceramic industry.

Steel Industry

“We have used Kerui silica insulation brick in our steel smelting factory and the results are amazing! Moreover, the heat loss of our furnace is greatly reduced and the energy efficiency is significantly improved. The quality and performance of Kerui silica insulation brick make us very confident in the safety of the equipment.”

Glass Industry

“We have chosen Kerui thermal insulation silica brick in the glass manufacturing industry. After using it, the temperature control of our glass furnace is more stable. Therefore, the durability of Kerui light weight silica brick is extremely impressive. In addition, we are very satisfied with the high performance of Kerui refractory products.”

Petrochemical Industry

“We use Kerui silica insulation brick in the petrochemical industry to build insulation layers for high-temperature furnaces and pipes. Best of all, the heat insulation bricks are resistant to chemical attacks. Besides, the quality and reliability of Kerui light weight silica brick make us more secure and efficient in petrochemical production.”

Foundry Industry

“As a customer in the foundry industry, we are very satisfied with the effect of Kerui insulation bricks! It is able to withstand the thermal shock during our high temperature casting process. Moreover, it can also maintain the stability of the furnace temperature. With the help of Kerui insulation bricks, we have improved the casting quality.”

Applications of Kerui Products

Why Choose Kerui Silica Insulation Brick?

International Certificates

Kerui light weight silica bricks have obtained internationally recognized certificates and certifications. For example, CE, EMS, QMS and OHSM certificates. So,  Kerui products meet international quality standards. Meanwhile, customers can choose Kerui silica insulation bricks with confidence.

Customized Refractory Product

Different customers have specific needs and application scenarios. On this basis, Kerui Refractory can customize insulation bricks according to requirements such as size, shape and material properties. That is to say, this kind of personalized customization can meet the specific requirements of different customers.

Real Price

We provide low-price and high-quality light weight silica brick. What’s more, Kerui has extensive experience in production and supply chain management and is able to effectively control costs. So, customers can obtain reliable quality silica insulation bricks without having to bear excessive cost burdens.

Fast Shipping

Kerui company pays attention to customers’ delivery time requirements and is committed to providing fast shipping services. Kerui has an efficient production process and warehouse management system. Therefore, we are able to respond promptly to customer orders and ensure products are delivered on time.

Kerui CE Certificate
CE Certificate
Kerui EMS Certificate
EMS Certificate
Kerui OHSM Certificate
OHSM Certificate
Kerui QMS Certificate
QMS Certificate


Kerui high-performance silica insulation brick is widely used in high-temperature industries. Moreover, we also provide one-stop service and technical support. So, you don’t have to worry about after-sales issues. So, if you have any needs, you can leave a message on the message board or find us on Facebook.

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