EPOXYLITE E477
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Single-Component VPI Processing
- 5-Hour Cure at 160 deg C
- 2,600 Volts/Mil Dielectric Strength
Product Description
EPOXYLITE E477 is a single-component, heat-cured epoxy resin for vacuum-pressure impregnation and vacuum impregnation of dry-taped, form-wound coils. It is used for Class 130, Class 155, and Class 180 electrical-insulation processing. Typical as-supplied viscosity is 1,000 to 2,500 cP at 25 deg C, and no added catalyst is required. VPI-treated units normally cure for five hours at 160 deg C; for 13.8 kV service, cure at 180 deg C is required. Typical cured properties include Shore D hardness, coil-bond strength, dielectric strength, and volume resistivity.
Key features
- Single-Component VPI Processing: The heat-cured epoxy requires no added catalyst for vacuum-pressure impregnation.
- VPI Cure Schedule: VPI-treated units normally cure for five hours at 160 deg C.
- 2,600 Volts/Mil Dielectric Strength: Typical cured volume resistivity is above 1 x 10^16 ohm-cm.
Applications
Vacuum-pressure impregnation and vacuum impregnation of dry-taped, form-wound coils; electrical-insulation processing.
TDS, SDS & Technical Documents
Technical Specifications
Physical Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied values for single-component EPOXYLITE E477 from the exact ELANTAS TDS.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Viscosity | 1,000 to 2,500 | cP | 25 deg C |
| Weight per gallon | 9.4 to 9.7 | lb | 25 deg C |
| Flash point | >94 | deg C | ASTM D93 |
| Shelf life | 6 | months | Original sealed containers below 25 deg C |
After-processing / final-state properties
Typical cured-resin values; normal full cure is 5 hours at 160 deg C, with 180 deg C required for the documented 13.8 kV service.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Helical-coil bond strength | 56 | lb | 25 deg C; ASTM D2519 |
| Hardness | Shore D 85 to 90 | - | 25 deg C |
| Dielectric strength | 2,600 | volts/mil | 1.0 mil; ASTM D149 |
| Volume resistivity | >1 x 10^16 | ohm-cm | 25 deg C; ASTM D257 |
| Dielectric constant | 4.4 | - | 1 kHz at 25 deg C |
| Dissipation factor | 0.003 | - | 1 kHz at 25 deg C |
