Professional Manufacturer Since 2008
We manufacture and supply calcium silicate boards for thermal insulation, fire protection and industrial applications. Our product range covers density from 250 kg/m³ to 1200 kg/m³ with custom sizes, CNC machining and OEM production support.
Explore Products
A complete product line — from lightweight low-density insulation boards to ultra-high-density structural grades, fire rated boards and custom CNC machined parts.
Lightweight, low thermal conductivity boards for general and high-temperature thermal insulation up to 1050°C.
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High mechanical strength grades up to 1200 kg/m³, compressive strength up to ≥23 MPa, rated to 1100°C.
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Non-asbestos, A1 non-combustible boards for fire doors, fire walls and certified passive fire protection.
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CNC machining and custom shaped calcium silicate components manufactured to your drawings and tolerances.
View Service →Density Selection Guide
Calcium silicate board performance is driven by density. Use the guide below to match a grade to your strength, load and temperature requirements.
Technical Data
Representative properties from our low-density insulation grade and high-density structural grade. Full data sheets are available on request.
| Bulk Density | 250 kg/m³ (±10%) |
|---|---|
| Max Service Temperature | 1050°C |
| Compressive Strength | ≥ 1.0 MPa |
| Flexural Strength | ≥ 0.55 MPa |
| Thermal Conductivity (20°C) | ≤ 0.062 W/m·K |
| Thermal Conductivity (800°C) | ≤ 0.165 W/m·K |
| Fire Classification | A1 · Non-Combustible |
| Bulk Density | 1200 kg/m³ |
|---|---|
| Max Service Temperature | 1100°C |
| Compressive Strength | ≥ 23 MPa |
| Flexural Strength | ≥ 15 MPa |
| Linear Shrinkage (850°C, 3h) | ≤ 0.16% |
| SiO₂ / CaO Content | 50% Min / 35% Min |
| Asbestos Content | None · Non-Asbestos |
Applications
Our boards are widely used across industrial furnaces, fire protection, metallurgy, cement and power generation.
Furnace lining & high-temp insulation
Certified fire-resistant cores
Direct metal contact grade
Kiln & preheater insulation
Heat-resistant fireplace lining.
⚡Boiler walls, ducts & piping.
🏭Back-up & hot-face insulation.
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Technology
Technical resources to help engineers specify the correct calcium silicate board for every project.
From xonotlite slurry to finished board. Read →
λ values from 20°C to 800°C. Read →
Thermal resistance by thickness. Read →
Service vs. classification temperature. Read →
Load-bearing data by density. Read →
All technical articles. Browse →
Why Choose Us
Direct from our Qingdao factory — production capacity, quality control and export experience you can rely on.
No middlemen — direct factory pricing and lead times.
OEM & private-label production to your specification.
Custom sizes, thicknesses and CNC shaped parts.
Quality control across the full manufacturing process.
Reliable logistics with secure export packaging.
Exporting to USA, Korea, Germany, Spain, India & more.
FAQ
Inquiry
Send us your application and requirements. Our engineers will reply with density recommendations, technical data sheets and a factory-direct quotation.