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

EPOXYLITE E477

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.

Product Family

EPOXYLITE E477

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TDS, SDS & Technical Documents

Technical Specifications

Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
1000 - 2500 mPa.s
Thermal Properties
Flash Point
The flashpoint of a solvent is the lowest possible temperature at which it can vaporize to form an ignitable vapor. Flashpoint is often confused with “autoignition temperature”, which is the temperature at which a solvent ignites without an ignition source.
> 94 °C

Additional Information

Technical properties

As-supplied / before-processing properties

Typical as-supplied values for single-component EPOXYLITE E477 from the exact ELANTAS TDS.

PropertyValueUnitMethod / condition
Viscosity1,000 to 2,500cP25 deg C
Weight per gallon9.4 to 9.7lb25 deg C
Flash point>94deg CASTM D93
Shelf life6monthsOriginal sealed containers below 25 deg C
Technical properties

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.

PropertyValueUnitMethod / condition
Helical-coil bond strength56lb25 deg C; ASTM D2519
HardnessShore D 85 to 90-25 deg C
Dielectric strength2,600volts/mil1.0 mil; ASTM D149
Volume resistivity>1 x 10^16ohm-cm25 deg C; ASTM D257
Dielectric constant4.4-1 kHz at 25 deg C
Dissipation factor0.003-1 kHz at 25 deg C

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