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Differences and Selection Guide Between Ceramic Fiber Board and Calcium Silicate Board

In the field of industrial and building insulation materials, ceramic fiber boards and calcium silicate boards are among the most commonly used products. Both offer good fire resistance and thermal insulation performance, but their characteristics, application scenarios, and selection principles differ. Choosing the right material can significantly improve safety and cost-effectiveness in projects.

Kerui-Ceramic-Fiber-Board-for-Sale


I. Basic Differences Between Ceramic Fiber Board and Calcium Silicate Board

✅ Ceramic Fiber Board

  • Material: Made from ceramic fiber cotton through vacuum forming

  • Temperature Resistance: 1000–1260℃, up to 1430℃ for premium grades

  • Features: Lightweight, excellent thermal insulation, low thermal conductivity

  • Applications: High-temperature industrial furnace linings, power plant boilers, metallurgy, high-temperature insulation layers

✅ Calcium Silicate Board

  • Material: Produced from siliceous and calcareous materials under autoclave curing

  • Temperature Resistance: 650–1000℃ (depending on grade)

  • Features: High strength, good compressive resistance, excellent moisture resistance

  • Applications: Fireproof partition walls, external wall insulation, power equipment insulation, pipeline insulation


II. Performance Comparison

CategoryPanneau de fibres céramiquesCalcium Silicate Board
Temperature ResistanceUp to 1000–1430℃, excellent stability at high temperaturesGenerally ≤1000℃
StrengthRelatively lower, more brittleHigh strength, good mechanical properties
WeightLighter, easier for installationHeavier
Thermal InsulationVery low thermal conductivity, superior insulationGood insulation, slightly lower than ceramic fiber board
Main ApplicationsMetallurgy, glass, ceramics, power plant boilersConstruction, power, shipbuilding, chemical pipelines

III. Selection Guide

  1. For applications above 1000℃
    → Choose Panneau de fibres céramiques (e.g., furnace linings, high-temperature metallurgy).

  2. For high strength or mechanical load-bearing requirements
    → Choose Calcium Silicate Board (e.g., fireproof partitions, construction, power equipment).

  3. For lightweight thermal insulation requirements
    → Choose Panneau de fibres céramiques (ideal for high-temperature insulation layers).

  4. For moisture resistance, fireproofing, and structural support
    → Choose Calcium Silicate Board (commonly used in construction and power industries).


IV. Conclusion

  • Ceramic Fiber Board → High-temperature insulation, lightweight refractory solution

  • Calcium Silicate Board → High strength, fireproof partitions, and pipeline insulation

In practical projects, these two materials are often used together: for example, ceramic fiber boards for furnace linings (insulation), and calcium silicate boards for outer structural support, achieving the best combined performance.

KERUI Refractory supplies different types of high temperature calcium silicate boards, architectural calcium silicate boards, ceramic fiber boards and other high temperature refractory boards. Please contact us for any needs.

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