What is the difference between ceramic fiber modules and calcium silicate boards?
Release Time: 2025-08-26
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In the fields of industrial insulation and building fire prevention, ceramic fiber modules and calcium silicate boards are commonly used fire-resistant insulation materials. However, due to differences in material and performance, their applicable scenarios and effects are greatly different. Many customers often have insufficient understanding of the differences between the two materials when selecting materials for projects, resulting in improper selection, which not only increases costs but also affects the quality of the project. As a professional manufacturer specializing in the field of thermal insulation and refractory materials, Rosewool Insulation Refractory Co.,Ltd., with years of industry experience, provides clear analysis of the differences between ceramic fiber modules and calcium silicate boards from the dimensions of material composition, core performance, and applicable scenarios, helping you to accurately select suitable materials.
From the perspective of material and structure, the "genetic differences" between the two determine the different directions of performance. Rosewool Ceramic Fiber Modules are mainly made of high-purity alumina and silica as raw materials. After high-temperature melting and fiberization treatment, they are made into modular structures through special processes. The interior presents a three-dimensional network of interwoven fibers with a porosity of over 90%; Calcium silicate board, on the other hand, is made of siliceous materials (quartz sand, fly ash, etc.) and calcareous materials (cement, lime, etc.) as the core. After adding reinforcing fibers, it is formed and steam cured. The board structure is dense and presents a homogeneous hard plate shape. The difference in material and structure directly leads to significant differences in core performance such as thermal insulation, high temperature resistance, and physical strength between the two.
In terms of core performance comparison, both have their own advantages and are suitable for different demand scenarios. From the perspective of high temperature resistance and thermal insulation performance, Rosewool ceramic fiber modules perform more outstandingly - their long-term use temperature can reach 1000-1400 ℃, short-term temperature tolerance can even reach over 1600 ℃, and their thermal conductivity is as low as 0.03W/(m · K). In high-temperature industrial kilns, metallurgical equipment and other scenarios, they can effectively block high-temperature heat transfer and reduce energy loss; The long-term use temperature of calcium silicate board is usually below 650 ℃, which is more suitable for insulation and fire prevention in medium and low temperature environments. Its thermal conductivity is slightly higher than that of ceramic fiber modules, about 0.06-0.08W/(m · K), but it is superior in its dense structure, stable insulation performance, and resistance to deformation.
From the perspective of physical strength and installation application, the difference between the two further clarifies the applicable boundary. Calcium silicate board, due to its dense and hard structure, has a compressive strength of 4-8MPa and a flexural strength of 2-4MPa. Its surface is smooth and flat, and it can not only be used as a fireproof board for building partition walls and ceilings, but also directly as a decorative base. There is no need for complex anchoring structures during installation, making construction convenient and efficient; The ceramic fiber module has a lightweight texture and good flexibility, with a density of only 200-300kg/m ³. Although its compressive strength is lower than that of calcium silicate board, it has excellent thermal shock resistance. In scenarios with drastic temperature changes (such as glass kilns and garbage incinerators), it can effectively avoid cracking and damage caused by thermal expansion and contraction. When installed, it needs to be fixed with a special anchoring system, which is more suitable for insulation construction of complex kiln linings.
In practical application scenarios, Rosewool will recommend suitable material solutions for customers based on their project requirements. For example, in the insulation project of a large steel plant's blast furnace hot blast stove in Henan, due to the equipment being exposed to high temperatures above 1200 ℃ for a long time and frequently experiencing temperature fluctuations, Rosewool recommends using ceramic fiber modules as the lining insulation material. This not only meets the requirements of high temperature resistance and thermal shock resistance, but also reduces the load-bearing capacity of the furnace body due to the lightweight nature of the material; In the fireproof partition wall and ceiling project of a commercial complex in Zhengzhou, considering the low ambient temperature and high requirements for board strength and decoration, Rosewool provided high-strength calcium silicate board, which not only meets the A-level fireproof standard, but also meets the flatness and durability needs of building decoration.
As a manufacturer with both ceramic fiber module and calcium silicate board production capabilities, Rosewool always adheres to the principle of "customized according to demand, quality first". In the production process of the product, the ceramic fiber module adopts a fully automatic fibrosis production line to ensure uniform fiber distribution and precise module size; Calcium silicate board ensures stable strength and fire resistance by strictly controlling the raw material ratio and steam curing process. In addition, the company has established a professional technical service team that can provide customers with a full process service from material selection, on-site surveying to installation guidance, avoiding engineering problems caused by incorrect material selection or improper installation.
Whether it is ceramic fiber modules in high-temperature industrial scenarios or calcium silicate boards in medium and low-temperature building fields, selecting the right materials is the key to ensuring engineering quality and energy-saving effects. Rosewool Insulation Refractory Co.,Ltd. will continue to provide professional products and services to help more customers clearly identify material differences and accurately match their needs. We will provide reliable material support for various thermal insulation and refractory projects, and assist in the efficient and long-term operation of projects.
