How much do you know about the properties of fiberglass cloth?

Physical and Mechanical Properties

1. High Strength

Fiberglass cloth possesses extremely high tensile strength, exceeding that of steel wire of the same cross-sectional area. This is its core characteristic as a reinforcing material, significantly improving the mechanical strength of composite materials.

2. Lightweight

The density of fiberglass is approximately 2.5-2.7 g/cm³, far lower than that of metals. This allows composite products to possess high strength while being very lightweight, exhibiting extremely high specific strength (strength/density).

3. Good Dimensional Stability

With a low coefficient of thermal expansion, its shape and size change very little even under large temperature variations, unlike metals which experience significant thermal expansion and contraction.

4. Low Creep

Under continuous load, it does not easily undergo slow, permanent deformation (creep), maintaining its shape and performance over a long period.

5. Non-combustible

Glass fiber is an inorganic material, resistant to high temperatures, non-combustible, and meets Class A fire resistance standards, exhibiting excellent fire-retardant properties.

Chemical Properties

1. Excellent Corrosion Resistance: Exhibits excellent corrosion resistance to most chemicals, does not mold, and is resistant to acids and alkalis (except hydrofluoric acid and hot concentrated phosphoric acid). This characteristic makes it ideal for manufacturing storage tanks, pipelines, chimneys, etc., in the chemical industry.

2. Mold and Insect Resistance: Made of glass, it does not provide nutrients for mold, bacteria, or insects, therefore it will not mold, rot, or be infested by insects.

Electrical and Thermal Properties

1. Excellent Insulation: Has excellent electrical insulation properties, making it an ideal material for manufacturing various electrical insulating components (such as circuit board substrate - FR4).

2. Good Thermal Insulation: Has a low thermal conductivity, making it an excellent thermal insulation material, commonly used in building insulation, industrial equipment insulation, etc.

3. High Temperature Resistance: Depending on the glass composition, its softening point is typically above 600℃. Some special models (such as high-silica fiber cloth) can operate continuously at temperatures above 1000℃.

Processing Performance

1. High Design Flexibility: Its mechanical properties and resin impregnation can be precisely designed by selecting different yarn densities, weaves (plain weave, twill weave, satin weave, etc.) and thicknesses to meet the needs of different products.

2. Good Lamination Properties: Its soft texture allows for easy lamination according to mold shapes, making it suitable for manufacturing products with various complex shapes, such as ship hulls and automotive parts.