A soluble ceramic fiber board, also known as an AES fiber board, is a rigid and lightweight insulation material designed for high-temperature applications up to 1000°C.
Manufactured from alkaline earth silicate (AES) fibers, this board is an eco-friendly alternative to traditional refractory ceramic fiber (RCF) boards, offering improved safety and compliance with modern environmental regulations.
✔ Eco-friendly & low biopersistence (safer for workers)
✔ Excellent thermal insulation performance
✔ Rigid structure with high mechanical strength
✔ Easy to cut, machine, and install
✔ Compliant with EU and US environmental standards
Perfect choice for projects requiring both performance and regulatory compliance
| Component | Content |
|---|---|
| SiO₂ | 65% – 75% |
| CaO + MgO | 25% – 35% |
| Impurities | ≤1% |
| Property | Value |
|---|---|
| Classification Temperature | 1100°C / 1200°C |
| Continuous Use Temperature | 900°C – 1000°C |
| Density | 260 – 320 kg/m³ |
| Thickness | 6 – 50 mm |
| Standard Size | 1000×600 mm / 1200×1000 mm |
| Temperature | Thermal Conductivity (W/m·K) |
|---|---|
| 200°C | 0.07 – 0.09 |
| 400°C | 0.11 – 0.13 |
| 600°C | 0.16 – 0.18 |
| 800°C | 0.22 – 0.26 |
Lower thermal conductivity means:
Better insulation performance
Reduced energy consumption
| Test Condition | Linear Shrinkage |
|---|---|
| 1000°C × 24h | ≤2.5% |
This ensures:
Stable structure at high temperatures
Reduced risk of cracks and heat leakage
Compressive strength: ≥0.3 MPa
Flexural strength: ≥0.15 MPa
Smooth surface, high rigidity
Easy for:
Cutting
Drilling
On-site installation
Why Choose Soluble Ceramic Fiber Board Over RCF Board?
| Feature | AES Fiber Board | RCF Board |
|---|---|---|
| Environmental Safety | High | Moderate |
| Health Impact | Safer | Restricted in some regions |
| Max Temperature | ≤1000°C | ≤1260–1400°C |
| Compliance | EU/US friendly | Increasing restrictions |
AES boards are the preferred solution for environmentally regulated markets
Soluble ceramic fiber boards are widely used in:
Industrial furnace linings (hot face & backup insulation)
Fire protection systems
Petrochemical equipment insulation
Ceramic kilns and heat treatment furnaces
Pipe and duct insulation
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