ARADUR HY 177
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others

Main features
- 600-900 mPa.s Component Viscosity
- 40-60 Minute System Pot Life
- Manual or Automatic System Metering
Product Description
ARADUR HY 177 Hardener is a modified polyamide liquid hardener used with ARALDITE GY 9708-1 in a room-temperature-curing epoxy casting system. The component is an amber-to-brown liquid with guideline viscosity of 600-900 mPa.s at 25 deg C, specific weight of 0.95-1.0 g/cm3 at 25 deg C, and a closed-cup flash point above 140 deg C. In the documented system, the mix ratio is 45 parts by weight or 52 parts by volume per 100 parts resin. The casting mixture offers a 40-60 minute pot life for 100 ml at 25 deg C. It is intended for casting or impregnation of transformers, filters, capacitors, and related electronic components.
Key features
- Controlled component viscosity: Guideline viscosity is 600-900 mPa.s at 25 deg C by Brookfield measurement.
- Practical system working time: The GY 9708-1/HY 177 mixture has a 40-60 minute pot life at 25 deg C.
- Flexible processing setup: The documented system supports manual or automatic mixing and dosing.
Applications
As the hardener component in the ARALDITE GY 9708-1 system for casting or impregnation of transformers, filters, capacitors, and related electronic components.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Guideline component values for ARADUR HY 177; cured-system data are excluded.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Amber to brown liquid | As-supplied form | |
| Viscosity | 600-900 | mPa.s | 25 deg C; ISO 2555:1989; Brookfield |
| Specific weight | 0.95-1.0 | g/cm3 | 25 deg C; ISO 2811-2:1997 |
| Flash point | > 140 | deg C | Closed cup; DIN 51758 |





















