Diphenyl Ether Fiberglass Rod (3851 )
Regular Size: 1000mm(support customize)
Diameter:Ф16mm-Ф150mm
Density: 1.7-1.8g/m³
Thermal rating: Class H(180℃)
Color: Deep Brown
Application:Motors,Transformer insulation structural components,Mechanical wear-resistant parts
Diphenyl ether fiberglass cloth laminated rod is one of insulating rods with circular cross-section, created by fiberglass cloth impregnated with diphenyl ether resin under hot pressing of molding.It has higher mechanical strength and dielectric property, and strong mechanical strength and good dielectric property under dry and wet condition.
Heat Resistance Rating: Classified as Class H insulating material, capable of long-term operation at temperatures above 180°C.
Mechanical Strength: Maintains high flexural, tensile, and compressive strength even under high-temperature conditions.
Insulation Performance: Features excellent dielectric properties, maintaining stable insulation characteristics across varying temperature and humidity levels.
Chemical/Radiation Resistance: Offers superior resistance to ray radiation and demonstrates good stability against chemical corrosion.
They are mainly used as insulating structural components of electrical equipment and machined parts of screw.
1.Factory: We operate a professional electrical insulation materials manufacturing facility and are ISO-certified.
2.Fully Automated Production: Our advanced automated workshop is supported by a strict and comprehensive quality management system.
3.Quality Inspection: Equipped with four major laboratories and five core product performance testing capabilities.
4.Processing Services: We provide customized processing solutions based on your requirements, ensuring high quality and on-time delivery.
5.Product Certification: Our products comply with UL, SGS, RoHS, and REACH standards. Sample testing is available upon request.
6.Ready Stock Supply: Standard products can be delivered within 7–15 days.


Our company is certified to ISO 9001, ISO 14001, and ISO 45001 management systems. Our products also comply with international certifications and reports including UL, RoHS, REACH, MSDS, CEMT, as well as factory inspection and test reports provided before shipment.

| Number | Item | Unit | Value |
| 1 | Density | g/cm3 | 1.7-1.8 |
| 2 | Flexural Strength at Perpendicular Lamination (Under Normal) | MPa | ≥220 |
| 3 | Axial Compressive Strength | MPa | ≥175 |
| 4 | Breakdown Voltage at Parallel Lamination (Transformer Oil at 90℃) | Kv | ≥40 |
| 5 | Insulation Resistance after Immersion | MΩ | ≥1000 |
| 6 | Dielectric Loss Factor(50Hz) | – | ≤0.03 |
| 7 | Water Absorption | Mg/cm2 | ≤5 |
| 8 | Thermal Index | – | 180 |