Elantas Zhuhaimanufactured Epoxylite 478 Thixo is a low-viscosity resin provided as a single-part impregnant, designed for use with uncatalyzed tapes. This resin closely resembles Epoxylite 477 but features a slightly higher viscosity and thixotropic properties. These properties enhance retention on loosely wound structures and improve surface build on enameled wire wound coils and taped apparatus.
Highlight Features
- Thixotropic Properties: The resin offers greater retention on loosely wound structures and improves surface build.
- V.P.I. Impregnant: We designed this resin specifically for use as a Vacuum Pressure Impregnation (V.P.I.) impregnant, making it ideal for electrical apparatus, taped coils, and enameled wire wound systems.
- Voltage Range: You can use it for applications throughout the low voltage range up to 7kV with the appropriate processing cycle.
- Insulation Systems: U.L. recognizes this resin for all temperature classes and constructions, ensuring long-term tank stability and high resin retention.
- Solvent-Free: It contains 100% solids, eliminating solvent fumes during the curing process.
- Compatibility and Resistance: The resin works well with most insulation systems. It also offers good chemical and water resistance and is non-moisture sensitive.
- Thermal Rating: The resin provides a thermal rating that exceeds 180°C.
Applications of Epoxylite 478 Thixo
Epoxylite 478 Thixo excels in conventional dip and bake/VPI applications. For instance, many in the medium voltage power generation industry, Navy, and motor rewind markets rely on it for impregnating medium voltage motors and generators. It is also well-suited for various random wound motor applications.
With an excellent field history, Epoxylite 478 Thixo continues to set the industry standard for medium voltage power generation, ensuring reliable performance and durability.
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Property
| COLOUR | GREY, INTRINSICALLY VISCOUS LIQUID |
| VISCOSITY @ 25°C Brookfield, TYPICAL | 1500 – 4500CPS |
| FLASH POINT | >93°C |
| GEL TIME @ 150°C | 12 – 18 MINUTES |
| FILM BUILD, TYPICAL | 2 – 4 MILS |
Cure resin Performance
| UL File Number | E76561 |
| Helical Coil MW-35 @ 25°C | 262 |
| Helical Coil MW-35 @ 150°C | 22 |
| Hardness, Shore D | 85 – 91 |
| Dielectric Strength (ASTM D149) | 1600 V/MIL |
| Dielectric Strength (ASTM D149) Following 24 hours immersion in water | 1400 V/MIL |
| Heat Distortion Temperature (ASTM D648) | 83°C |
| Dissipation Factor (ASTM D-150) | 0.0067 @ 25°C |
| 0.21 @ 130°C | |
| Thermal Conductivity (ASTM D-1674) | 5.3 x 10⁻⁴ CAL/CM/S/CM² / °C |
