ARALDITE® CW 177-Grey / ARADUR® HY 226

ARALDITE® CW 177-Grey / ARADUR® HY 226 is an optimally filled casting system for processing and curing at room temperature or slightly higher temperatures.

 

The information, specifications, and materials provided with this product are for general informational purposes only and are subject to change without notice. The product is provided “as is” without any warranties, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. Users are responsible for ensuring the product is suitable for their intended application and for following all applicable safety guidelines and instructions.

The information, specifications, and materials accessible here may not reflect the most current version. Please use the Request a Document feature for the most current product documentation available.

RTU Product Type: Casting Resin

Product End Uses: Capacitors, Filters, Power Transformers, Transformers

Chemical Family: Epoxy & Epoxy Derivatives

Processing & Application Methods: Casting, Vacuum Pressure Casting

Product Features: Excellent Flow Properties, Good Thermal Conductivity, Non-Abrasive

Enhanced TDS

Identification & Functionality

Features & Benefits

Product Features
Product Features
  • Excellent flow properties.
  • Good thermal conductivity.
  • Non abrasive casting system.

Applications & Uses

Product End Uses
Processing Methods
  • Casting / Vacuum casting
  • Manually or with automatic mixing and dosing equipment
Remarks

Araldite®CW 177 contains fillers, which tend to settle over time. Before partial use we recommend the resin be carefully stirred to re-homogenise it or to use each container as complete unit.

Application Information
  • Transformers
  • Filters
  • Capacitors

Technical Details & Test Data

Mechanical Properties

Condition : at 23°C, Cured for 10 hours at 50°C

Property Value Unit Test method
Tensile strength 50 - 55 MPa

ISO R 527 :1993

Elongation at break 0.3 – 0.4 %

ISO R 527 :1993

E modulus from tensile test 8,500 - 9,000 MPa

ISO R 527 :1993

Compressive strength 110 - 120 MPa ISO 604
Glass transition temperature (DSC) 60 - 70 °C

ISO 11357-2 :1999

Coefficient of linear thermal expansion 50 - 60 ppm/K

ISO 11359-2 :1999

Water absorption (10 days at 23°C) 0.25 – 0.30 % by wt. ISO 62:1999
Density 1.58 – 1.63 g/cm³ ISO 1183
Electrical Properties

  • Electrical Properties: at 23°C, Cured for 7 days at 25°C

    Dielectric strength 17 - 19 kV/mm IEC 60243-1
    Volume resistivity (50Hz, 25°C) 2.5 – 3.0 10¹⁵ Ω·cm IEC 60093
    Dielectric constant (εr, 50Hz, 25°C) 4.0 - 4.1   IEC 56250
    Loss factor (tan δ at 50 Hz, at 25°C) 0.011   IEC 56250
    Loss factor tan δ at 50 Hz, at 60°C) 0.019   IEC 56250
    Loss factor tan δ at 50 Hz, at 90°C) 0.070   IEC 56250
  • Safety & Health

    Disposal

    Regular procedures approved by national and/or local authorities

    Storage & Handling

    Storage Conditions
    • ARALDITE® CW 177 contains fillers, which tend to settle over time. Before partial use we recommend the resin be carefully stirred to re-homogenise it or to use each container as complete unit.
    • The components have to be stored under dry conditions at 10 - 25°C, in tightly sealed original containers. Under these conditions, the shelf life will correspond to the expiry date stated on the label. After this date, the product may be processed only following re-analysis. Partly emptied containers should be closed tightly immediately after use.

    Other

    Processing & Application Methods
    Application Information
    ValueUnitsTest Method / Conditions
    Mix Ratio0.13%(W)Hardener : Resin