ECR Epoxy Rod
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ECR Epoxy Rod
High-Performance Electrical Insulation & Corrosion Resistance
At Unity Fiber & Composite, we manufacture premium-grade ECR (Electrical Corrosion Resistant) Epoxy Rods designed for high mechanical strength, superior insulation, and excellent resistance to moisture and chemicals. These rods are made using high-quality E-glass and ECR glass fibers embedded in epoxy resin, making them ideal for demanding electrical and industrial applications.
- Excellent Electrical Insulation: Suitable for high-voltage environments and insulation components.
- High Mechanical Strength: Maintains dimensional stability and structural integrity under load.
- Corrosion & Chemical Resistance : Withstands harsh operating environments, including chemicals, humidity, and UV exposure.
- Thermal Stability: Performs reliably across a wide temperature range.
- Smooth Surface Finish: Suitable for further processing, machining, and coating.
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FRP Rod Plant Specifications
| Sl.No | Parameters | Sample | Ref. Std. | Specification |
|---|---|---|---|---|
| 1 | Visual Appearance | 100 % | Plant Standard | Free from voids, cracks, dents |
| 2 | Dimensional Tolerance | 1% of Batch (min 10 Nos) | Plant Standard | Dia: ±0.05 mm Length: + 1 mm |
| 3 | Straightness | Plant Standard | 1.5 mm/ metre (max) | |
| 4 | Hardness, Barcol | 1/ Batch | ASTM D 2583 | 60 minimum |
| 5 | Specific Gravity, 23 ± 2 °C | 1/Batch | ASTM D 792 | 2.0 – 2.20 gm/cc3 |
| 6 | Glass content | 1/Batch | ASTM D 2584 | 80 +/- 5 % |
| 7 | Dye Penetration Test | 1/Batch | IEC 62217 | No dye shall raise through the specimens before the 15 minutes have elapsed |
| 8 | Water Absorption at (20 + 2 deg C, 24 hrs) | 1/Batch | ASTM D 570 | 0.1% maximum |
9 | Water diffusion test, ( 0.1% by weight of Nacl in de ionised water, boiled for 100 hrs, | 1/Batch | IEC 62217 | During the test, 12 kV is to be applied. No puncture or surface flashover shall occur. The current during the hole test shall not exceed 0.5 mA (r.m.s) |
10 | Tensile strength | Once in a Year / As and When Required By Customer | ASTM D3916 | 780 Mpa (min) |
11 | Flexural strength | Once in a Year / As and When Required By Customer | ASTM D4476 | 900 Mpa (min) |
12 | ECR Rod Stress corrosion / Brittle Fracture test( 1 mol/1HNO3, at 80% tensile stress) | Once in a Year / As and When Required By Customer | ERDA Standard | > 96 hours shall withstand, No Cracks |
| 13 | Glass Transition temperature, Tg | Once In 4 Months | ASTM D 3418 | 125°C +/- 5°C & 145°C +/- 5°C |
| 14 | Boron Content , B2O3 | Once in 4 Months | Lucid Method | <=50 ppm |
15 | FRP Rod Surface finish | min 5 Nos | Plant Standard | Rods should be grinded for good bonding, suitable for silicone composite insulators. Ground rods will be wiped to clean dust particles,before packing and dispatch. |
| 16 | Roughness | Once in 4 Months | Plant Standard | Ra Value – 3 to 5 |
| 17 | Power Frequency withstand test | Random / Once per Order | As per Customer Requirement | Withstand 100 kV for 30 minutes, temp should not raised more than 5*C |
| 18 | SEM and FTIR Signature Analysis | Random / Once per Order | As per Customer Requirement | SEM on FRP Rod cross section, surface analysis by optical spectrograph |
FRP (Fiber Reinforced Polymer) rod manufacturing, most commonly using the pultrusion process, involves pulling continuous fiber reinforcements through a resin bath and then through a heated die to create a solid, shaped profile. This process results in FRP rods with consistent cross-sections and high strength-to-weight ratios.
Here’s a more detailed breakdown of the pultrusion process:
Looking for reliable FRP Pultruded Profiles, ECR Rods, or FRP Rebars?
Unity Fiber & Composite is here to provide durable, high-performance composite solutions tailored to your project needs. Whether you’re in infrastructure, electrical, or industrial sectors, our team is ready to support you with technical expertise and on-time delivery.
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