silica fume for STP Insulation board
Insulation Material

Silica Fume for Insulation Material

The application of micro silica fume powder as the main raw material for the preparation of composite silicate thermal insulation material has gradually become a hot spot for the application of micro silica fume powder at present.

  • Good decorative property, compound silicate thermal insulation coating with micro silica fume powder has good decorative property. It is not only applicable to new buildings, but also can be repackaged for old houses and old walls.
  • Silicate thermal insulation coating inherits the nature of silicate stability, dust-free, non-toxic, non-irritating to human body and no deformation, non-corrosive, stable and reliable after use, and can be applied to different working environments.
  • Micro silica fume powder composite silicate insulation coating its dry has a certain compressive strength and adhesive strength, non-load-bearing parts do not need to make a shell, in construction becomes very simple, eliminating the support pieces, can be applied on site, no need to protect the layer, not subject to the shape of the insulation surface, thus also saving construction costs.
  • Especially in the shaped equipment with other insulation coatings can not be compared to the advantages. Shaped equipment insulation has been a major problem in the insulation industry. Because of the special appearance of shaped equipment, complex shape, surface changes, and hard insulation materials are generally boards, tiles and other profiles, very bad installation. But micro silica fume powder compound silicate insulation coating is paste, plasticity, can be coated into any shape, no waste of material, no need to make shell and good sealing.

Properties of Silica Fume

Silica fume’s unique properties make it an excellent candidate for use in insulation materials. These properties include:

1. High Surface Area: Silica fume has a high surface area, which enhances its reactivity and binding properties when mixed with other materials.

2. Pozzolanic Reactivity: It exhibits pozzolanic behavior, meaning it reacts with calcium hydroxide to form calcium silicate hydrate, contributing to the strength and durability of composites.

3. Thermal Stability: Silica fume is highly resistant to high temperatures, making it suitable for thermal insulation applications.

4. Low Permeability: It reduces the permeability of materials, enhancing their resistance to moisture and other environmental factors.


Advantages of Using Silica Fume in Insulation Materials

1. Enhanced Thermal Insulation: The addition of silica fume to insulation materials significantly improves their thermal resistance. Its fine particles fill voids, reducing heat transfer and enhancing insulation performance.

2. Improved Durability: Silica fume contributes to the overall durability of insulation materials. Its pozzolanic properties increase the strength and longevity of composites, making them more resistant to wear and environmental degradation.

3. Fire Resistance: Due to its high thermal stability, silica fume enhances the fire resistance of insulation materials. This is particularly beneficial in applications where fire safety is paramount.

4. Moisture Resistance: Silica fume reduces the permeability of insulation materials, preventing moisture ingress and minimizing the risk of mold and mildew formation. Get a free quote online now!


Applications of Silica Fume in Insulation

1. Construction: In the construction industry, silica fume is used in high-performance concrete to enhance its insulation properties. It is particularly beneficial in building envelopes, where thermal efficiency is crucial.

2. Industrial Insulation: Silica fume is employed in the manufacture of industrial insulation materials, such as refractory linings and high-temperature insulation boards. Its thermal stability and durability make it ideal for these applications.

3. Aerospace and Automotive: The aerospace and automotive industries use silica fume-enhanced composites for thermal insulation. These materials provide excellent thermal resistance while maintaining lightweight properties, essential for these sectors.

4. Oil and Gas: In the oil and gas industry, silica fume is used to improve the thermal insulation properties of cementitious materials used in wellbore applications. This enhances the efficiency and safety of drilling operations.

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silica fume powder

Silica fume is a versatile and valuable material in the realm of insulation. Its unique properties, including high surface area, pozzolanic reactivity, thermal stability, and low permeability, make it an excellent addition to various insulation materials. The benefits of enhanced thermal insulation, improved durability, fire resistance, and moisture resistance make silica fume a preferred choice in numerous industries. As technology and research advance, the potential for silica fume in insulation applications is likely to expand, offering more innovative solutions for energy efficiency and safety.