Aerogel felt is a flexible thermal insulation material featuring aerogel as its core component, typically reinforced with a substrate of glass fiber or pre-oxidized fiber felt.
The core benefits of aerogel blankets for buildings can be summarized as follows: they achieve high-efficiency thermal insulation with minimal thickness while offering fire resistance, moisture protection, and long-term durability, making them a key material for resolving the conflict between building energy efficiency and spatial constraints.
| Technical Parameter | Typical Index Range | Description |
|---|---|---|
| Thermal Conductivity (25℃) | ≤0.020 W/(m*K), some products reach 0.012-0.018 W/(m*K) | The lower the value, the better thermal insulation performance and thinner required thickness. |
| Bulk Density | 180-220 kg/m³ | Much lighter than traditional thermal insulation materials, beneficial for building lightweight design. |
| Continuous Service Temperature | Conventional type: -50℃ ~ 200℃ High-temperature resistant type: -50℃ ~ 600℃ and above |
Multiple grades available, suitable for building exterior wall, roof, flue and pipe insulation. |
| Fire Performance | Class A Non-combustible; high-grade products comply with EN 45545-2 HL3 | HL3 is the highest hazard level. Smoke density, toxicity and heat release all meet requirements. |
| Water Repellency | ≥98% | Integrally hydrophobic. No collapse when exposed to water, stable long-term insulation performance. |
| Thickness | Common size: 3 / 5 / 6 / 10 mm | Custom thickness available, far thinner than conventional building insulation materials. |
| Width | Standard: 1500 mm | Easy to cut, adapts to curved and complex building surfaces. |
| Tensile Strength | ≥0.12 MPa | Good flexibility, resistant to cracking during construction and slight building deformation. |
| Water Vapor Permeability | Vapor permeable | Allows moisture escape from wall substrate, reduces risks of wall mildew and hollowing. |