epoxy core rod for insulator is widely used in composite insulators of silicone rubber, posts, cross arms, drop switches, disconnecting switches and electric railway posts. We can produce epoxy fiber glass rods with diameter from 2 to 4mm to be used in optical cables.

Features:
1) Core rods length: according to customers' requirements
2) No crack fault trace
3) Don't allow gum deposit
4) Colors: light yellow or light green which is uniform
5) Can be used with saw, mill, knife plane, drill, lathe and grinder for machining

Specifications:
1) Length tolerance: ≤±1mm
2) Nominal diameter: 2 - 9mm, 10 - 18mm, 20 - 28mm, 30 - 40mm, 41 - 130mm
3) Nominal deviation: ±0.15mm, ±0.1mm, ±0.3mm, ±0.3mm, ±0.4mm
4) Density: ≥2.2 or 2.0g/cm³
5) Water absorption:
a) General: 0.02%
b) Acid resistance: 0.05%
6) Tensile strength:
a) General: 1,680MPa
b) Acid resistance: 1,326MPa
7) Flexural strength:
a) General: 965MPa
b) Acid resistance: 900MPa
8) Hot flexural strength:
a) General: ≥300MPa/150°C
b) Acid resistance: 260MPa/150°C
9) Fuchsine test: >20min
10) Water diffusion test: ≤0.03mA
11) Compressive strength:
a) General: 965MPa
b) Acid resistance: 912MPa
12) Fiber content: ≥75%
13) Interlaminar shear strength:
a) General: ≥65MPa
b) Acid resistance: ≥58MPa
14) Industrial frequency break voltage: ≥50kV/cm
15) Full wave impulse voltage:
a) General: ≥95kV/cm
b) Acid resistance:≥94.5kV/cm
16) Stress corrosion: ≥96h