
Vermiculite Boards
Vermiculite board is a refractory material made from exfoliated vermiculite and special inorganic binder that provides a high degree of heat resistance to temperatures up to 1100 degrees C and heat shocks. The use of vermiculite plates is aimed at improving the thermal insulation for both personal and industrial purposes. The main advantage of vermiculite is the preservation of temperature and fire resistance. The vermiculite plate has a low thermal conductivity and its specific density is up to 300 kg/cub meter.
Vermiculite fire boards are widely used in pellet stoves, fireplace, partition panel, fireproofing doors, wall claddings, ceiling, furniture, platforms for marine and vessels, etc. Vermiculite board also provides insulation and is used in soundproofing.


New Type of Insulation Material
Vermiculite Board is a new type of inorganic material, with expanded vermiculite as the main raw material, mixed with a certain proportion of inorganic adhesives, through a series of processing and become with high-temperature resistance, fire prevention, green environmental protection, insulation, sound insulation, no harmful substances in the plate. When heated to 1200℃ at a high temperature, no harmful gases will be produced, and the combustion performance reaches level I.
Vermiculite Fireproof Insulation Boards
With the feature of heat insulation and fire prevention, Vermiculite Fireproof Board / Brick is widely used as the thermal insulation and refractory material. And the fireboard can be worked easily with woodworking tools. It can be sawn, drilled, and sanded.
Vermiculite Fire-proof Insulation Board is often used as a heat shield, firebrick, register plates, or replacement fire bricks for wood burning or multi-fuel stoves. Vermiculite board also provides insulation and is used in soundproofing.

Key Features
- Vermiculite boards are extremely heat resistant withstands high temperatures.
- Excellent thermal insulation properties and minimal shrinkage at high temperatures.
- Vermiculite slabs are non-toxic, environmentally friendly material.
- Low thermal conductivity.
- Absence of harmful vapors even at high temperatures.
- Vermiculite plates are hard and resistant to mechanical impacts and high temperatures.
- Smooth surface and beautiful white or golden look that allows you to instantly paint, tile, and perform other finishing work.
- Lightweight and smooth surface allows you to treat vermiculite fireproof boards easily, like cutting, drilling, milling, etc.
Versatile Usage of Vermiculite Boards
- Fire-resistant Core for Fire Door
- Vermiculite Insulation Board for Ceiling
- Vermiculite Insulation for Fireplace
- Fire-resistant core for fire doors;
- Fire-resistant walls and ceilings;
- Fire brick in the stove, electric heater, storage heater, furnace, fireplace, etc.
- Heat insulation boards in planes, trains, cars, ships, ovens, pipes, etc.
- Heat prevention boards for walls;
- Sound insulation boards for walls;
Technic Specification:
Items | Unit | BOR-170 | BOR-220 | BOR-270 |
---|---|---|---|---|
Bulk Density | Kg/m3 | 170(±10%) | 220(±10%) | 270(±10%) |
Pressure Strength | MPa | ≥0.40 | ≥0.50 | ≥0.60 |
Flexural Strength | MPa | ≥0.30 | ≥0.35 | ≥0.40 |
Thermal Conductive | W/m.k | ≤0.048 +0.00011t | ≤0.050 +0.00011t | ≤0.056 +0.00011t |
Temp. limit | degrees | 1000 | 1050 | 1050 |
Linear Shrinkage | % | ≤1.50(1000,3hrs) | ≤1.50(1000,3hrs) | ≤1.50(1000,3hrs) |
Vermiculite Insulation Board Supplier
We’re a vermiculite mineral products manufacturer. Our mining base locates in Lingshou county, Hebei province, the north of China, which is famous for its rich non-metallic resources. Having been dedicated to researching, developing, and manufacturing vermiculite mineral products for over 12 years, we’ve built long-term business relationships with customers from more than twenty countries and regions, such as the USA, Russia, Japan, South Korea, United Arab Emirates, Thailand, Malaysia, etc.
With modern machines and advanced technologies, we produced high-quality products. The vermiculite expanding times could reach 5 to 11 times. Each year we can produce more than 80,000 tones of gold vermiculite and 30,000 tones of silver vermiculite. All grades of vermiculite on the market are available in our company.
Packaging & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient, and efficient packaging services will be provided.
- Package details: Wooden Pallet
- 47 pcs per pallet for 20 mm
- 38 pcs per pallet for 25 mm
- 31 pcs per pallet for 30 mm
- Delivery time: 10-15days after the deposit received.
- Samples prepared within 2days after receiving your express payment.
- Port: Tianjin port.