Vermiculite Board is a lightweight, fire-resistant insulation material, available in boards, plates, and sheets, offering excellent thermal stability and easy installation for industrial and construction applications.
Working temperature (℃)
Bulk Density (kg/m³)
Thermal conductivity (W/m·K)
Compressive strength (MPa)
Kerui Vermiculite board is a lightweight and high-temperature resistant refractory material widely used for insulation and fireproofing. Produced from expanded vermiculite and special binders, it combines excellent thermal stability, low thermal conductivity, and reliable fire resistance. Unlike traditional insulation materials, vermiculite boards are asbestos-free, eco-friendly, and easy to cut and install.
Kerui Vermiculite board also known as vermiculite plate or vermiculite sheet, is available in various sizes and densities to meet diverse industrial and construction requirements.
| Indicator Name | Verified Value from MSDS | Verification & Application Notes |
|---|---|---|
| Density | 500 kg/m³ | This specific value is explicitly stated, confirming a medium-low density product suitable for insulation and lightweight structures. |
| Melting Point | 1650 °C | Directly confirms exceptional high-temperature resistance, far exceeding common fire resistance standards and validating "≤ 1200°C" performance claims. |
| Flammability | Non-flammable. No physical/chemical hazards identified. | Verified as an A1/A-grade non-combustible material. Does not burn or contribute to fire. |
| Composition & Eco-friendliness | SiO₂ (51.39%), MgO (13.98%), Al₂O₃ (11.22%), etc. Asbestos-free. Not classified as an environmental hazard. | Composition aligns perfectly with natural vermiculite, confirming material authenticity. Verified as non-toxic and asbestos-free. |
| Health Hazards (Critical Note) | Causes skin irritation.Causes serious eye damage. (Primarily due to K₂O content) | A key safety finding. The product is safe when installed, but dust generated during cutting/sanding requires mandatory PPE: protective gloves and eyewear. |
| Stability | Stable under normal conditions. | Reliable for use as a building material. Incompatible with strong oxidizing agents. |
Vermiculite board provides outstanding insulation performance with low thermal conductivity, effectively reducing heat loss in high-temperature equipment.
The material is 100% non-combustible and asbestos-free, ensuring safe use in industrial furnaces, stoves, and construction projects.
Lightweight but Strong
Despite its light density, vermiculite board maintains good compressive strength and mechanical stability, making it easy to handle and install without compromising durability.
Resistance to Thermal Shock and Chemicals
It withstands rapid temperature changes and resists corrosion from slags, alkalis, and other chemicals, ensuring long service life in harsh operating conditions.
Vermiculite board is used as thermal insulation panels in medium- to low-temperature kilns, such as ceramic kilns, glass annealing kilns, and small industrial baking ovens. It helps reduce heat loss, stabilizes kiln temperature, and protects the structure from heat damage.
Vermiculite boards are installed in walls, ceilings, and partitions in factories, laboratories, and commercial buildings. They provide effective fireproofing while keeping structures lightweight and easy to install, ensuring safety without adding excessive weight.
Applied as boards or sheets in wood stoves, gas stoves, fireplaces, and chimneys, vermiculite boards enhance heat containment, improve operator safety, and prevent heat from damaging surrounding structures.
Vermiculite boards act as insulation lining for heating equipment such as oven doors, heating chambers, and boiler covers. They maintain energy efficiency, reduce surface heat, and extend the service life of the equipment.
Kerui operates advanced production lines with strict quality control to ensure consistent product performance.
We provide tailored vermiculite boards, plates, and sheets based on your specific size, density, and application requirements.
With years of export expertise, Kerui Refractory supplies customers in Europe, Asia, Africa, and the Middle East with reliable logistics and timely delivery.
Our experienced engineers offer technical guidance on product selection, installation, and performance optimization.
For industrial furnaces, select high-density vermiculite boards with excellent strength; for construction fireproofing, lighter boards or sheets are often sufficient.
Product price varies according to density, thickness, and customization level. Selecting the right grade ensures cost-effectiveness without compromising performance.
Decide whether boards, plates, or sheets are more suitable for your project. Accurate dimensions and thickness selection reduce cutting waste and overall project cost.
Kerui ceramic fiber board for sale has the advantages of high quality as well as competitive price. If you need this product in your business, why not consider buying from Kerui? Contact us now to get a quick reply!