Glass Fiber Powder / Filler
Over 300°C
Main applications
Micron-scale glass-fiber powder and filler that raise composite strength
Key Features
Micron-scale short fiber
Short fibers from a few to a few tens of microns — dispersing evenly through the composite for uniform strength gain
Higher tensile and flexural strength
Dispersed through resin, cement or rubber matrices — arresting crack propagation and greatly improving impact strength
Heat resistance and dimensional stability
Inorganic glass fiber — no shrinkage or expansion at temperature, securing composite dimensional stability
Excellent chemical resistance
The inherent chemical resistance of glass fiber — acid and alkali resistant, suited to composites in corrosive service
Powder and chopped fiber
Available as powder or chopped strand — choose the form that suits the application
Specifications
| Material | E-glass short fiber / powder |
| Fiber length | 1 mm – 12 mm (chopped), or powder form |
| Fiber diameter | Approx. 9–14 μm |
| Service temperature | Over 300°C (inorganic) |
| Main applications | Reinforcing filler for cement, resin and rubber composites |
| Supply form | Bagged or poly-wrapped units |
Applications
Construction & cement
- •GRC (glass-fiber reinforced cement) manufacture
- •Reinforcing filler in cement board and panels
Composite resins
- •Reinforcing filler in FRP resins
- •Reinforcement of epoxy and polyester composites
Rubber & plastics
- •Improving tensile strength in rubber composites
- •Reinforcing filler for engineering plastics
Specialty uses
- •Filler for intumescent paint
- •Raw material for friction materials and brake pads
Notes
- ※Composite properties vary considerably with chopped length and powder particle size — tell us the resin and application and we will recommend the specification.
- ※Small samples for testing are available; we recommend property testing before placing the main order.

