Details
High Silica Fiberglass Cloth
High Silica Fiberglass Cloth is a premium refractory fabric woven from high-purity silica fiberglass yarns with a SiO₂ content of ≥96%. Unlike traditional glass fibers, Silica Cloths are produced by acid leaching of glass fibers or direct spinning from silica sol, resulting in a material that retains flexibility while offering exceptional thermal and chemical resistance.
As an inorganic fiber material, it boasts exceptional strength, softness, and toughness—even under extreme temperatures. We offer both uncoated and specialized coated versions (PU, Vermiculite, Aluminized) to boost abrasion resistance, tensile strength, and functional versatility for targeted applications.
Designed for continuous use at 1100°C (2012°F), short-term exposure to 1400°C (2552°F), and instant peaks at 1650°C (3002°F), this cloth is non-toxic, low-smoke, and chemically stable making it a go-to for high-temperature industrial and aerospace scenarios.
Identification:
SiO2 Content | ≥96% |
Weave Patterns | Plain, Satin |
Coating Options | Uncoated, PU (Polyurethane), Vermiculite, Aluminized |
Coating Thickness | 0.05–0.2mm (coated versions) |
Thickness (Cloth) | 0.1–1.5mm (customizable up to 2.0mm) |
Loss on Ignition (Shrinkage) | ≤3% |
Shrinkage (1000℃, 24hrs) | ≤3% |
Thickness (mm) | 0.1-1.5 |
Width (mm) | 820, 860, 920, 1000, 1500mm; custom up to 3000mm |
Areal Weight (g/m2) | 100-1260 (custom ranges available) |
Continuous Operating Temp | 1100°C/2012°F |
Short Time Working Temp | 1400°C (2552°F) (≤60 minutes) |
Instant Peak Temp | 1650°C (3002°F) (≤10 minutes) |
Chemical Resistance | Resistant to acids, alkalis (except HF), and organic solvents |
Smoke Emission | Low, no toxic fumes |
Tensile Strength (Warp/Weft) | ≥70/50 N/25×100mm (lightweight); ≥1200/800 N/25×100mm (heavyweight) |
What are the key features of high silica fiberglass cloths?
Uncoated High Silica Fiberglass Cloth
-Extreme Temperature Resistance: Thrives in 1100°C continuous use, withstands 1400°C short-term and 1650°C instant heat.
-Strong Chemical Stability: Resists most acids, alkalis, and organic solvents. Ideal for corrosive industrial environments.
-Superior Refractory & Insulation: Low thermal conductivity and excellent fire resistance protect equipment and personnel.
-Minimal Shrinkage & LOI: ≤3% shrinkage and ignition loss, maintaining structural integrity under high heat.
-Soft & Durable: Balances flexibility (easy to cut/fabricate) with toughness for long service life.
-Low Smoke Emission: Complies with safety standards, no toxic fumes during heat exposure.
Coated High Silica Fiberglass Cloth
-Enhanced Abrasion Resistance: PU/Vermiculite/Aluminized coatings boost wear resistance for harsh working conditions.
-Improved Tensile Strength: Coating reinforces the cloth’s structure, preventing fraying and extending durability.
-Added Functionality: Aluminized coating reflects heat; Vermiculite enhances fire resistance; PU improves water resistance.
-Better Sealing Performance: Coated surfaces reduce air permeability, ideal for gaskets and expansion joints.
How many types of high silica fiberglass cloths are there?
High silica cloths can be classified based on weave patterns and coating materials.
By Weave Pattern:
-Plain Weave: Balanced construction, most common for general insulation
-Twill Weave: Diagonal rib pattern, better drape for complex shapes
-Satin Weave: Fewer interlacings, smoothest surface finish
-Leno Weave: Locked weave for stability in lightweight fabrics
By Finish/Coating:
-Uncoated: Pure silica cloth
-Vermiculite Coated: Enhanced fire protection
-Graphite/Silicon Carbide Coated: For aerospace ablation protection
-Aluminum Foil Laminated: Reflective heat barrier
-Silicone Rubber Coated: For gaskets and seals
What are the advantages and benefits of high silica cloths?
1. Good chemical stability
2. Good refractory and insulation Properties
3. Excellent high-temperature resistance, acid resistance and erosion resistance
4. Low shrinkage and thermal conductivity
5. Low Smoke Emission
Technical Parameters:
Product Code | Thickness (MM) | Width | Weight | Breaking Strength N/25×100mm | SiO2 Content | LOI (%) | Weave | Coating | |
Warp | Weft | ||||||||
HSC100-100 | 0.10±0.01 | 100±3 | 87±10 | ≥70 | ≥50 | ≥96 | ≤3 | Plain | None |
HSC260-100 | 0.26±0.026 | 100±3 | 240±20 | ≥290 | ≥190 | ≥96 | ≤3 | Plain | None |
HSC300-100 | 0.30±0.05 | 100±3 | 300±30 | ≥500 | ≥350 | ≥96 | ≤3 | Plain | None |
HSC400-100 | 0.45±0.045 | 100±3 | 420±50 | ≥350 | ≥3000 | ≥96 | ≤3 | Plain | None |
HSC600-100 | 0.65±0.10 | 100±3 | 600±50 | ≥290 | ≥190 | ≥96 | ≤3 | Satin | None |
HSC600S-100 | 0.65±0.10 | 100±3 | 650±60 | ≥1000 | ≥600 | ≥96 | ≤3 | Satin | None |
HSC760-100 | 0.76±0.08 | 100±3 | 680±70 | ≥900 | ≥650 | ≥96 | ≤3 | Satin | None |
HSC900-100 | 0.82±0.082 | 100±3 | 900±100 | ≥600 | ≥4500 | ≥96 | ≤3 | Plain | None |
HSC1150-100 | 1.15±0.15 | 100±3 | 1150±100 | ≥1600 | ≥800 | ≥96 | ≤3 | Satin | None |
HSC1250-100 | 1.25±0.15 | 100±3 | 1250±100 | ≥1700 | ≥800 | ≥96 | ≤3 | Satin | None |
HSC1350-100 | 1.20±0.12 | 100±3 | 1350±100 | ≥750 | ≥400 | ≥96 | ≤3 | Plain | None |
HSC-PU260-100 | 0.31±0.03 | 100±3 | 280±20 | ≥350 | ≥240 | ≥96 | ≤3 | Plain | PU |
HSC-VE760-100 | 0.86±0.09 | 100±3 | 750±70 | ≥1000 | ≥750 | ≥96 | ≤3 | Satin | Vermiculite |
HSC-AL1260-100 | 1.36±0.13 | 100±3 | 1250±70 | ≥1300 | ≥900 | ≥96 | ≤3 | Satin | Aluminized |
Note: Regular width is 92cm and 100cm. Custom specs (thickness, width, weight, coating type) available via OEM. All tolerances are industry-standard; adjustable upon request.
Application:
The high silica cloth (uncoated/coated) is widely used across industries, including:
1.Welding & Metal Processing: Welding blankets, curtains, and pads to protect workers/equipment from sparks and heat.
2.Aerospace: Thermal ablation materials for rocket components and aircraft engine insulation.
3.Metallurgy & Foundry: Furnace linings, molten metal splash protection, and refractory covers.
4.Shipbuilding & Heavy Machinery: High-temperature gaskets, expansion joints, and flange joint compensators.
5.Nuclear & Power Industry: Thermal insulation for reactors, steam valves, and high-temperature cables.
6.Chemical & Petrochemical: Corrosion-resistant seals, pipeline insulation, and reactor protection.
7.Building & Construction: Fireproof curtains, door seals, and passive fire protection systems.
8.Automotive: Exhaust system heat shields and high-temperature component covers.
9.Other: Custom jackets/covers for industrial equipment, fireproof packaging, and personnel protective clothing.
How to store and handle high silica cloths?
Unless otherwise stated, high silica fiberglass products should be stored in a cold, tidy, dry environment. A temperature range of 15°C to 35°C and a relative humidity range of 35% to 65% are considered ideal. Please keep them in their original packaging until you are ready to use them. Be sure to shield the product from the weather and any water sources. There is no known shelf life for the product when stored properly, but to ensure optimum performance, retesting is required three years from the product's initial production date.
Storage Conditions:
-Temperature: 15-35°C
-Humidity: 35%-65% relative humidity
-Light: Protect from direct sunlight
-Environment: Clean, dry, well-ventilated area
-Stacking: Flat storage preferred, rolled materials stored vertically
-Shelf Life: Indefinite if properly stored (no organic binders to degrade)
Handling Precautions:
1.Wear gloves to prevent skin irritation (though less problematic than fiberglass)
2.Use dust masks during cutting to avoid inhalation of loose fibers
3.Cut with sharp scissors, rotary cutters, or laser cutting
4.Avoid creasing or folding sharply to prevent fiber damage
5.Clean surfaces before bonding or coating
Installation Notes:
-Allow for thermal expansion (typically 0.05-0.1% at 1000°C)
-Use silica thread or high-temperature wire for stitching
-High-temperature adhesives available for bonding
-Can be sewn, clamped, or mechanically fastened
FAQ
Question 1: What's the difference between silica cloth and fiberglass cloth?
A: While both cloths are glass-based, silica cloth contains 96-99% SiO₂ versus 50-60% in fiberglass. This gives silica cloth 300-400°C higher temperature capability, better chemical resistance, and lower thermal conductivity. Fiberglass will melt around 650°C, while silica remains stable to 1100°C continuous.
Question 2: How flexible is the high silica cloth after high-temperature exposure?
A: One of silica cloth's key advantages is that it remains flexible after repeated thermal cycling. While some stiffening may occur after prolonged exposure above 1000°C, it maintains far better flexibility than ceramic boards or rigid insulation.
Question 3: What causes the natural off-white/beige color of high silica cloths?
A: The slight coloration comes from trace elements (mainly iron) and the manufacturing process. For pure white cloth, special ultra-high purity grades are available at higher cost.
Question 4: Can the high silica cloth be washed or cleaned?
A: Light soiling can be removed with compressed air. For deeper cleaning, gentle hand washing in mild detergent and air drying is possible. Avoid mechanical agitation that could damage fibers. Never machine wash or wring.
Question 5: What if I can’t find my required specification of the high silica cloth in the table?
A: No worries! The table lists our standard, regular and high-demand products. We offer full customization. Just contact us via email or message with your desired thickness, width, weight, coating type, or other specs, and we’ll tailor the product for you.
Question 6: What’s the minimum order quantity (MOQ) of high silica cloths?
A: MOQ varies by product type, MOQ is negotiable. Please contact us for details.
