Process

Percent of glass fiber by weight

Tensile strength (ksi)

Tensile modulus (10³ ksi)

Flexural Modulus (ksi)

Compressive strength (ksi)

Filament winding (glass-polymer)

40 - 75

35 - 50

2500 - 3600

30 - 50

30 - 45

Pultrusion (glass-matt polymer)

40 - 80

60 - 150

4000 - 6000

100 - 150

30 - 70

Pultrusion (glass mat and roving polymer)

30 - 55

7 - 35

800 - 2500

10 - 30

15 - 40

Centrifugal casting

40 - 45

30 - 40

2200 - 2500

30 - 40

25 - 35

Hand lay up

40 - 75

30 - 40

800 - 2500

10 - 30

15 - 40