Reliable protection against heat — strong, safe, and efficient up to 1000 °C

The DHK Insulation Board is a premium calcium silicate panel engineered for demanding environments where extreme temperatures, structural stability, and safety are essential. With a maximum service temperature of 1000 °C, it delivers outstanding thermal insulation and mechanical strength — the ideal solution for fireplaces, stoves, industrial furnaces, and flue systems.

Why choose DHK Insulation Boards

• Exceptional thermal performance – low thermal conductivity of just 0.07–0.10 W/m·K
• Non-combustible (Class A1) – meets the highest fire safety standards
• Lightweight yet strong – 230 kg/m³ density and ≥ 2.2 MPa compressive strength
• Durable and dimensionally stable – retains its shape even under high heat
• Easy to machine – can be cut and shaped using standard woodworking tools
• Moisture-absorbent yet stable – maintains performance after drying

Technical Specifications

Material: Calcium silicate
Temperature resistance: 1000 °C
Fire classification: A1 (non-combustible)
Density: 230 kg/m³
Compressive strength: ≥ 2.2 MPa
Flexural strength: ≥ 1.1 MPa