Thermal performance
XN-300 and XN-500 provide low thermal conductivity from ambient to high-temperature conditions.
CSMATX XN Series
CSMATX XN Series is a xonotlite-based calcium silicate board developed for elevated-temperature passive fire and thermal insulation. The export range currently includes XN-300 and XN-500, balancing insulation performance, weight and mechanical strength for different project requirements.

PRODUCT CAPABILITIES
CSMATX XN Series is a xonotlite-based calcium silicate board developed for elevated-temperature passive fire and thermal insulation. The export range currently includes XN-300 and XN-500, balancing insulation performance, weight and mechanical strength for different project requirements.
XN-300 and XN-500 provide low thermal conductivity from ambient to high-temperature conditions.
Rigid board construction supports panel and partition designs that require shape retention.
Cutting, drilling, chamfering and CNC processing are available for custom parts.
Grade, thickness and geometry can be selected against the actual thermal and structural target.
TECHNICAL DATA
| Property | CSMATX XN-300 | CSMATX XN-500 |
|---|---|---|
| Density | 300 kg/m³ ±5% | 500 kg/m³ ±5% |
| Thermal conductivity at 25°C | ≤0.040 W/(m·K) | ≤0.056 W/(m·K) |
| Thermal conductivity at 400°C | ≤0.044 W/(m·K) | ≤0.065 W/(m·K) |
| Thermal conductivity at 800°C | ≤0.060 W/(m·K) | ≤0.075 W/(m·K) |
| Compressive strength | ≥1.8 MPa | ≥6.0 MPa |
| Flexural strength | ≥1.5 MPa | ≥4.0 MPa |
| Linear shrinkage, 1000°C × 12 h | ≤2.0% | ≤1.8% |
| Mass loss, 1000°C × 3 h | ≤10% | ≤10% |
| Typical thickness range | 10–50 mm, customizable | 10–50 mm, customizable |
The values below are typical product specifications from current technical materials. Final supply specification, fire classification and project acceptance criteria must be confirmed in the quotation, TDS and/or customer validation documents.
START YOUR RFQ
Send the operating temperature, target thickness, dimensions, quantity and validation requirement. We will respond with a recommended grade and next-step sample or quotation plan.