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Silica Fibers CAS NO 71888-51-2
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CAS No.:71888-51-2
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Silica Fibers are high-performance, amorphous inorganic materials prized for their exceptional thermal stability, chemical resistance, and reinforcing properties. These fibers are critical for enhancing the mechanical strength, durability, and dimensional stability of composite materials across demanding industrial sectors. Key industries that rely on this advanced material include aerospace, automotive, construction, and high-temperature insulation.
Application
- High-Temperature Insulation: As a core component in blankets, boards, and modules for furnaces, kilns, and industrial ovens.
- Composite Reinforcement: Used to reinforce plastics, rubber, and cementitious materials, improving tensile strength and heat resistance.
- Aerospace & Automotive: In lightweight composite parts for aircraft interiors, engine compartments, and automotive under-hood components.
- Filtration Media: For high-efficiency particulate air (HEPA) filters and hot gas filtration systems.
- Acoustic and Thermal Insulation: In building materials and industrial equipment for noise reduction and energy conservation.
- Sealants and Gaskets: To provide resilience and thermal stability in high-temperature sealing applications.
- Refractory Materials: As an additive to castables and mortars to improve thermal shock resistance.
- Electronics: As a substrate or reinforcing filler in printed circuit boards and electronic encapsulants.
Basic Information
| Product Name | Silica Fibers |
| CAS No. | 71888-51-2 |
| Molecular Formula | SiO₂ |
| Molecular Weight | 60.08 g/mol (monomer) |
| Synonyms | Amorphous Silica Fibers; Fused Silica Fibers; Quartz Fibers; Silicon Dioxide Fibers; High-Silica Fibers; Glass Fibers (high-silica grade); Refractory Ceramic Fibers (RCF); Silica Wool |
| EINECS | Contact for details |
Quality Control
Our Silica Fibers are manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as fiber diameter, chemical composition, and loss on ignition. Our quality protocols are designed to meet the rigorous demands of industrial and composite material applications.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container sealed to prevent moisture absorption and contamination from atmospheric dust.
Specification
| Item | Specification |
|---|---|
| Appearance | White fibrous material |
| SiO₂ Content | > 96% |
| Fiber Diameter | 3 - 12 µm (customizable) |
| Loss on Ignition (LOI) | < 3.0% |
| Melting Point | > 1700 °C |
| Bulk Density | Contact for details |
| Thermal Conductivity | Contact for details |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
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Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






