Alkali-Free Fiberglass Fabric (E-Glass) | Electrical Insulation

Alkali-free fiberglass fabric (E-glass classification) is engineered with the following composition:

SiO₂: 52-56%
Al₂O₃: 12-16%
CaO+MgO: 16-25%
Alkali oxides: ≤0.8%

This material delivers superior electrical insulation properties and mechanical strength for electronics and industrial applications.

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Product Features

Thermal Performance:
- Continuous operating temperature: 450°C
- Peak temperature resistance: 600°C (short-term)
Electrical Properties:
- Dielectric strength: 15-25 kV/mm
- Volume resistivity: ≥10¹⁴ Ω·cm at 25°C
Physical Properties:
- Tensile strength: ≥3000 MPa
- Density: 2.54-2.57 g/cm³
Safety Compliance:
- Asbestos-free
- RoHS & REACH compliant

Sizes

Model	Weave	Weight (g/m²)	Thickness (mm)	Width (m)	Length (m)
EC-120	Plain	120±5	0.12±0.02	1.0-1.2	50-100
EC-200	Plain	200±8	0.18±0.03	1.0-1.27	50-100
EC-260	Twill	260±10	0.25±0.03	1.0-2.0	50-100
EC-300	Twill	300±10	0.30±0.03	1.0-2.0	50-100
EC-430	Satin	430±15	0.40±0.05	1.0-1.8	50-80

Application

Remarks

Standard Packaging: Vacuum-sealed PE bags + export cartons
MOQ: 500 meters per model
Lead Time: 15-20 working days for standard specifications
Customization: Available for weave pattern, surface treatment, and dielectric enhancements

Standard Complied

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