High Silica Knitted Sleeve | Silica Content >98%
Ultra-Flexible High-Temperature Silica Knitted Sleeve for Cable & Hose Protection
High Silica Knitted Sleeve (>98% SiO₂) is a premium high-temperature protective sleeving solution engineered for applications requiring exceptional flexibility, excellent thermal insulation, and reliable fire resistance.
Manufactured from continuous high-purity silica fibers and formed into a knitted tubular structure, this sleeve provides outstanding stretch, vibration resistance, and easy installation over cables, hoses, pipes, and wiring exposed to extreme heat.
Designed for continuous operating temperatures up to 1000°C and short-term exposure up to 1200°C, high silica knitted sleeve is widely used in power plants, furnaces, foundries, electrical systems, aerospace, and industrial heating equipment.
Key Performance Advantages
- Silica Content: >98% (Ultra-High Purity SiO₂)
- Continuous Temperature Resistance: Up to 1000°C
- Short-Term Heat Exposure: Up to 1200°C
- Knitted Tubular Construction for Maximum Flexibility
- Excellent Stretch & Vibration Resistance
- Low Thermal Conductivity
- Non-Combustible, Non-Asbestos & Halogen-Free
The knitted structure allows the sleeve to expand and contract easily, making it ideal for dynamic installations and tight-bend applications.
Sleeve Construction & Engineering Benefits
High Silica Knitted Sleeve is manufactured using high-purity silica yarns produced through a controlled leaching process to achieve >98% silica content. The knitted tubular design offers key engineering advantages:
- High elasticity for easy installation
- Conforms to irregular shapes and diameters
- Maintains protection under vibration and movement
- Reduced fiber breakage compared to rigid constructions
Compared to braided sleeves, knitted sleeves offer greater flexibility and stretch, making them suitable for complex routing and movable components.
Typical Technical Specifications
| Property | Value |
|---|---|
| Product Type | Knitted Sleeve |
| Silica Content | >98% |
| Construction | Tubular Knitted |
| Inner Diameter Range | 4 mm – 100 mm (custom sizes available) |
| Wall Thickness | 0.2 mm – 3.0 mm |
| Continuous Temperature | Up to 1000°C |
| Short-Term Temperature | Up to 1200°C |
| Color | White / Off-White |
Industrial Applications
Electrical & Cable Protection
- High-temperature cable insulation
- Fire-resistant wiring protection
- Electrical harness shielding
Thermal & Heat Shielding
- Furnace and kiln cable protection
- Radiant heat shielding
- Exhaust and hot pipe insulation
Industrial & Foundry Use
- Protection against molten splash
- Flexible hose and pipe insulation
- Equipment wiring protection
Aerospace & Transportation
- Engine bay cable protection
- Fire-resistant sleeving systems
- High-temperature insulation for moving components
Optional Enhancements & Treatments
- Silicone coating – improved abrasion & moisture resistance
- Vermiculite coating – enhanced surface durability
- Metal wire reinforcement – increased mechanical strength
- Low-dust surface treatment – clean installation
Standards, Compliance & Quality Assurance
- ASTM E84 – Flame Spread Index
- ASTM C892 – High-Temperature Insulation
- ISO 9001: Quality Management System
- RoHS & REACH Compliant
- Non-Asbestos & Environmentally Safe
Each batch is supplied with TDS, COA, and full production traceability documentation.
Why Choose Our High Silica Knitted Sleeve?
- Guaranteed >98% silica purity
- Maximum flexibility and stretch
- Consistent diameter and wall thickness
- Custom sizes, coatings & reinforcements available
- Trusted global export supplier to USA, Europe, Middle East & Asia
FAQs
It offers superior flexibility and stretch, making it ideal for dynamic and vibration-prone applications.
Yes, it is non-combustible and widely used in fire-resistant electrical systems.
Yes, the knitted structure allows excellent conformity to tight bends and irregular shapes.
Yes, silicone, vermiculite coatings and metal wire reinforcement options are available.
Product Tags
High silica braided sleeve, silica sleeve >98%, high temperature silica sleeve, fire resistant silica sleeve, cable protection silica sleeve, thermal insulation braided sleeve