Rosetexwool  Insulation Refractory Co., Ltd.
High Density Calcium Silicate Board
Calcium Silicate

High Density Calcium Silicate Board

Ultra-high density calcium silicate board (>500kg/m³) for applications requiring maximum mechanical strength.

Density
>500 kg/m³
Raw Material
Quartz sand
Thickness
25-100mm (10mm for high density)
Asbestos
100% Non-Asbestos

Overview

  • Ultra-high density
  • Maximum mechanical strength
  • Excellent load bearing
  • Thermal insulation

High density calcium silicate board with density exceeding 500 kg/m³ custom manufactured for applications where maximum mechanical strength and load-bearing capacity are required alongside thermal insulation performance.

Part of the Calcium Silicate product family.

Key features

  • Ultra-high density
  • Maximum mechanical strength
  • Excellent load bearing
  • Thermal insulation
  • Asbestos-free
  • Customizable

Typical applications

  • Load-bearing insulation applications
  • Heavy industrial equipment
  • High-pressure environments
  • Structural insulation

Technical specs

Density
>500 kg/m³
Raw Material
Quartz sand
Thickness
25-100mm (10mm for high density)
Asbestos
100% Non-Asbestos

Last updated: August 13, 2026

Frequently asked

What is the maximum temperature for calcium silicate insulation? +

Calcium silicate insulation boards can withstand continuous temperatures up to 1100°C. They offer high compressive strength and excellent dimensional stability, making them ideal for high-temperature pipe supports, furnace backup insulation, and aluminium smelter applications.

How does calcium silicate compare to ceramic fiber? +

Calcium silicate offers significantly higher compressive strength (up to 6 MPa) than ceramic fiber blankets, making it the preferred choice for load-bearing insulation. It is supplied in rigid board form, easy to cut and machine. Ceramic fiber, however, offers higher temperature limits (up to 1430°C) and lower thermal conductivity in blanket form.

Is calcium silicate asbestos-free? +

Absolutely. All our calcium silicate products are manufactured using an asbestos-free formula. They meet international health and safety standards including ASTM C533 and GB/T 10699, and are certified as non-hazardous material for transport and handling.

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