Fiberglass cloth (also sold as fiberglass fabric, glass fiber cloth, or glass fiber fabric) is a woven fabric made from E-glass continuous filament yarn. It works as thermal insulation, fire protection, and composite reinforcement. Continuous operating temperature is 550 °C. Short-term peak is 650 °C. Standard area weights are 200, 400, and 600 g/m². Standard widths are 1000 mm and 1500 mm. Thickness ranges from 0.20 mm to 0.65 mm. Both plain and twill weaves are available.
Applications
- Removable insulation pads and thermal blankets
- Welding curtains and spark shields
- Expansion joints and furnace door seals
- Exhaust and turbine lagging
- FRP composite reinforcement
- Fireproof curtains and smoke barriers
Technical Specifications
| Property |
FW200 |
FW400 |
FW650 |
Test Method |
| Area weight (g/m²) |
200 |
400 |
600 |
ISO 3374 |
| Thickness (mm) |
0.20 ±0.02 |
0.40 ±0.03 |
0.65 ±0.05 |
ISO 3611 |
| Weave pattern |
Plain |
Plain |
Twill |
Visual / thread count |
| Width (mm) |
1000 / 1500 |
1000 / 1500 |
1000 / 1500 |
Steel tape |
| Warp tensile strength (N/50 mm) |
≥1600 |
≥2800 |
≥3800 |
ISO 13934-1 |
| Weft tensile strength (N/50 mm) |
≥1300 |
≥2400 |
≥3100 |
ISO 13934-1 |
| Continuous service temp. (°C) |
550 |
550 |
550 |
Internal method |
| Short-term peak temp. (°C) |
650 |
650 |
650 |
— |
| Loss on ignition (%) |
≤1.5 |
≤1.5 |
≤1.5 |
ISO 1887 |
| Moisture content (%) |
≤0.5 |
≤0.5 |
≤0.5 |
ISO 3344 |
| Thermal conductivity at 200 °C (W/m·K) |
0.07 |
0.07 |
0.08 |
ISO 8302 |
Key Performance Data
- Continuous thermal resistance at 550 °C. Glass fiber fabric retains over 50 % of initial tensile strength after 100 hours at 500 °C.
- Non-flammable. Meets ISO 1182. No flame propagation.
- High chemical resistance: withstands most acids (except HF, hot phosphoric acid) and alkalis. Not affected by organic solvents.
- Electrical insulation: surface resistivity above 10¹⁰ Ω (dry, 23 °C).
- Low thermal conductivity: 0.07 W/m·K at 200 °C for 0.20 mm cloth.
Certifications & Compliance
- ISO 9001:2015 – certified quality management system.
- RoHS (Directive 2011/65/EU) – compliant for thermal insulation textiles.
- Third-party test reports (fiber composition, tensile strength, thermal resistance) available upon request.
OEM/ODM Customization
| Customization option |
MOQ |
Sample lead time |
Sample charge |
| Area weight (200–1500 g/m²) & width (up to 2000 mm) |
500 kg |
7 working days |
USD 100 (refunded on order) |
| Weave type, color coating, vermiculite treatment |
500 kg |
10 working days |
USD 120 (refunded on order) |
| Private label & custom packaging |
500 rolls |
3 working days (artwork) |
Free |
Packaging & Container Loading
- Roll length: 30 m standard (50 m on request).
- Roll wrapped in PE film → packed in 5‑ply corrugated box.
- Boxes stacked on ISPM 15 heat-treated fumigated pallet (1.1 m × 1.1 m).
- Max. pallet gross weight: 1000 kg.
- 20GP: 10 pallets; approx. 10 metric tons net.
Quality Control
- Incoming inspection: filament diameter (ISO 1888) and sizing type verified per lot.
- In‑line monitoring: thread count (warp/weft) checked every 100 m via camera system.
- Batch traceability: unique lot number links finished roll to incoming fiber batch.
Lead Time & Supply
| Order size |
Lead time |
| ≤500 kg |
10 working days |
| FCL (approx. 10 MT) |
15 working days |
| Trade term |
FOB Shanghai (EXW available) |
Downloads
Fiberglass Cloth Product Catalog (PDF)
