Quartz Wool Products
Quartz Wool BN111
Quartz Wool BN111 is an inorganic fiber material processed through special techniques from quartz fibers. It appears as a white, odorless, non-volatile, amorphous, and disordered cotton-like product with a silicon dioxide content ≥99.95%. Containing no binder, it presents in an amorphous, continuous, clustered, white fluffy form. The irregular length, shape, and arrangement of quartz fibers give them a curled appearance, preventing filler compression and enhancing insulation performance. It serves as an excellent alternative to high-silica fiber wool, ceramic fiber wool, and basalt fiber wool.
Key Features
Excellent Dielectric Properties
Dielectric constant of only 3.74 and dielectric loss of merely 0.0002, making it an outstanding wave-transparent material at high temperatures.
Ultra-High Temperature Resistance
Long-term service temperature of 1050-1200°C with a softening point at 1700°C, offering excellent thermal shock resistance and extended service life.
Low Thermal Conductivity
Thermal expansion coefficient as low as 0.54×10-6/K, just one-tenth of ordinary glass fiber, providing both heat resistance and insulation.
High Strength
Tensile strength up to 6000 MPa (5 times that of high-silica fiber and 76.47% higher than E-glass fiber) with no surface microcracks.
Excellent Insulation
Resistivity ranging from 1×1018 Ω·cm to 1×106 Ω·cm between 20°C and 1000°C, making it an outstanding insulating material.
Good Processability
Amorphous, continuous, clustered, white fluffy form that’s easy to work with.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | BN-111 |
| Single Filament Diameter (μm) | 1-3, 3-5, 5-9, 9-11 |
| Silicon Dioxide Content (%) | ≥99.95 |
| Long-term Service Temperature | 1050-1200°C |
| Softening Point | 1700°C |
| Thermal Expansion Coefficient | 0.54×10-6/K |
| Tensile Strength | 6000 MPa |
| Dielectric Constant | 3.74 |
| Dielectric Loss | 0.0002 |
Applications
- Ablative materials in aerospace (rocket nozzle ablative materials, re-entry vehicle ablative materials, launch pad ablative materials)
- Various high-temperature environment insulation materials (aircraft engine fire barriers around fuselage, space launch vehicle thermal protection, rocket propulsion system insulation)
- Wave-transparent composite materials (aircraft nose cones, missile radomes)
- High-grade thermal insulation material, replacing glass fiber and high-carbon oxygen fiber
- Thermal insulation material in optical fiber production
- High-frequency printed circuit boards (communication base stations, supercomputers)
BN115 Quartz Fiber Furnace Seal
Made of quality quartz wool.
| Model | Filament Dia (μm) | Dia (mm) | Shape | Weight | Purity (%) | Photo |
| BN115-3 | 3 | 50-55 | Circular, Cylindrical | 20-200 | ≥99.95 |  |
| BN115-5 | 5 | |||||
| BN115-9 | 9 | |||||
| BN115-11 | 11 |
BN112 Quartz Wool Felt
Made of quartz wool and organic binder.
| Model | Thickness (mm) | Size (mm) | Photo |
| BN112-1 | 1 | 500*500 250*250 |  |
| BN112-2 | 2 | ||
| BN112-3 | 3 |
BN123 Quartz Fiber Heat Shield
Made of quartz cloth and quartz fiber needled felt & quartz wool.
Performance of Quartz Fiber
Advantages
- SiO2 purity 99.95%
- Long lifetime at temperature of 1050℃
- Softening temperature 1700℃
- Low thermal conductivity
- Higher strength and tensile modulus acidic, Alkaline and salt resistance.
Main Applications
- Wave-transparent material,
- Ablative material,
- Structural material,
- Thermal insulation material,
- Electrical insulating materials
Application of Quartz Fiber
- Aerospace (Rocket nozzle, aircraft and launching pad ablative material)
- High temperature resistance and thermal insulation material (aeroengine circumstance, fuselage fire barrier)
- Stealth structural material（thermal protection of space launch vehicle, rocket booster thermal insulation）
- Wave-transparent material (aircraft nose, radome) Reinforcement material (satellite, structural material)
- An ideal substitute for ceramic, high silica glass fibers as high temperature resistance, thermal insulation material
- High frequency PCB (Communication base station, Supercomputer)
- Furnace thermal insulation and sealing material in chip manufacturing
- Thermal insulation for optical fiber manufacturing
- Electric vehicle battery separator
- High temperature cable cladding material, core reinforcement material
- High class protective clothing for firefighters
- Fire resistance curtain, insulation sleeve, fireproof quartz wall cloth
- Molten steel filter material, thermocouple sleeve
