G-5 G-9 Melamine Glass Rod for Electrical Insulation and Industrial Applications

product details

Description

G-5/G-9 Melamine Glass Rods are made from a durable composite of melamine resin and glass fiber, providing high mechanical strength and excellent resistance to heat, moisture, and wear. These rods are suitable for applications where both electrical insulation and physical durability are required. They offer superior dielectric strength, making them ideal for high-voltage systems, and maintain structural integrity in temperatures up to 130°C. The combination of glass fiber and melamine resin ensures resistance to mechanical stress, chemical exposure, and moisture, making these rods versatile for electrical and structural applications.


Features

  • High mechanical strength and durability

  • Excellent electrical insulation with high dielectric strength

  • Thermally stable up to 130°C

  • Resistant to moisture, chemicals, and mechanical wear

  • Glass fiber reinforcement prevents breakage under stress


Applications

  • Electrical insulation components in high-voltage equipment such as transformers, switchgear, and cables

  • Structural parts requiring high strength and durability

  • Insulating rods, spacers, and bushings in industrial machinery

  • Custom machined components exposed to heat, moisture, or mechanical stress


Technical Data Sheet

Test / PropertyUnitG-3G-5/G9G-7G-10G-11G-11H
PHYSICAL






Densityg/cm³1.81.851.81.81.81.9
Water Absorption, 24 hrs%2.650.60.10.10.20.2
MECHANICAL






Tensile Strength – lengthwiseMPa289425138310296280
Tensile Strength – crosswiseMPa234352-262255250
Flexural Strength – lengthwiseMPa279425207517552372
Flexural Strength – crosswiseMPa234352-448483124
Flexural Modulus – lengthwiseGPa12.413.81118.620.714
Flexural Modulus – crosswiseGPa9.711.7-16.618.612
Izod Notched Impact – lengthwisekJ/m²0.640.670.640.710.6116
Izod Notched Impact – crosswisekJ/m²0.590.45-0.610.4614
Compressive StrengthMPa379448345448434346
Hardness, Rockwell M110115105110112112
THERMAL






Coefficient of Linear Thermal Expansion – lengthwise10⁻⁶ / °C1.461.271.150.881.1515
Coefficient of Linear Thermal Expansion – crosswise10⁻⁶ / °C1.761.451.380.881.2720
Max Operating Temperature°C180140220140165180
Thermal Class/HBCBFH
Flammability RatingUL94HBV-0V-0HBHBHB
Thermal ConductivityW/m·K0.290.290.290.290.290.25
ELECTRICAL






Dielectric Strength (short time, 1/8" thick)kV/mm18.111.813.831.535.416
Dielectric Constant at 1 MHz7.36.34.554.54.8
Dissipation Factor at 1 MHz0.0230.0190.0180.0190.020.02
Arc Resistances180180240100120120


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