Laurel calcium silicate board is an asbestos-free thermal insulation product that can withstand continuous operating temperatures up to 1000 ºC. It is lightweight, has low thermal conductivity and high strength, and is easy to install.
Calcium silicate boards are commonly used as furnace backup insulation in the steel, petrochemical, ceramic, cement & glass industry or fire protection in building construction. It saves energy, increases production efficiency, and protects personnel in industrial safety.

Length: 400/600/610/1000/1200 mm or customized
Width: 250/300/500/600 mm or customized
Good Durability
High Strength
Low Thermal Conductivity
Function: Refractory & Insulation & Fireproof


★ Light bulk weight
★ Low thermal conductivity
★ High compressive strength
★ Good durability
★ Strong practicability in construction
★ Non-toxic,and easy to cut and installation


Item | Calcium silicate board | |||
Chemical Composition | % | SiO2≥55; CaO≥36; Al2O3≤0.5; Fe2O3≤1.0 | ||
Bulk Density | Kg/m3 | 250(±10%) | 270(±10%) | 300(±10%) |
Flexural Strength | Mpa | ≥0.55 | ≥1.0 | ≥1.2 |
Max service temperature | ºC | 1000 | 1000 | 1000 |
Compressive Strength | Mpa | ≥1.0 | ≥1.5 | ≥2.0 |
Thermal Conductivity (W/m.k) | 200ºC | 0.080 | 0.078 | 0.087 |
400ºC | 0.106 | 0.099 | 0.114 | |
600ºC | 0.132 | 0.128 | 0.139 | |
800ºC | 0.165 | 0.156 | 0.168 | |
Linear Shrinkage | % | ≤2(1000ºC,16 hrs) |
Cement kiln, industrial coke oven
Glass furnace equipment
Electrical and Metallurgical equipment
Petrochemical industry
Other heating furnace thermal insulation

Refractory materials include alumina series bricks, magnesia series bricks, corundum series bricks, mullite bricks, and alusite bricks. Insulation materials include ceramic fiber products, calcium silicate products, insulating brick, and rock wool insulation for the metallurgy, glass, ceramics, petrochemical, machinery, steel, cement, lime, construction, and other industries.



We provide a global one-stop purchasing platform for refractory and insulation materials to offer you professional advice, qualified products and good service, helping you to make energy-saving easier.
We passed the ISO 9001 certificate, and many products got approval from domestic and foreign customers; our materials have been exported to Europe, South America, North America, Africa, Oceania, and Southeast Asia ,it is over 50 countries, and built firm business relations with more than 200 foreign companies.
Hope we will have the opportunity to work with you together.
We warmly welcome you to visit us at any time.



Q1. Are you a Manufacturer?
A: Yes, our factory is in Zibo, Shandong province. We also have strong cooperating relationships with other manufacturers for other related products.
Q2. Can we visit your factory?
A: Sure, warmly welcome at any time. Seeing is believing.
Q3. Can you accept OEM or ODM?
A: Yes, customization is also welcome.
Q4. What's the MOQ of the trial order?
A: No limit. We can offer the best suggestions and solutions to meet your requirements.
Q5. What are your payment methods?
A: T/T, L/C, and other payment terms are also available for us.
Q6. How long is the delivery time?
A: Normally, it takes around 10-20 days. It also depends on the quantity of the order size.
Q7. How about your company's certification?
A: CE, ISO9001, and test report. We also could apply for other necessary certifications.
Q8. How can you control your quality?
A: For each production processing, we have a complete QC system to control the quality during production.
Q9. Do you provide free samples?
A: Yes, free samples are available.