ARALDITE® CW 1116-1 / ARADUR® XW 1257-1

ARALDITE® CW 1116-1 / ARADUR® XW 1257-1 is a filled casting resin system with excellent winding impregnation characteristics for processing and curing at high temperatures.

RTU Product Type: Casting Resin

Product End Uses: Pressure Sensitive Devices, Transformers

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Casting, Potting, Vacuum Casting

Features: Excellent Dielectric Properties, Excellent Thermal Shock Resistance, Excellent Winding Impregnation, Filled, Good Impregnation Capability, High Temperature Curing

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Enhanced TDS

Identification & Functionality

Chemical Family
Fillers Included
RTU Product Type
Technologies
Product Families

Features & Benefits

Ready-to-Use Product Features
Product Features
  • Good dielectric properties.
  • Good thermal shock resistance.
  • Excellent impregnation.
  • Flammability: UL 94 V-0 (6 mm).

Applications & Uses

Composites Processing Methods
Product End Uses
Processing Information

Preparation

ARALDITE® CW 1116-1 and XW 1257-1 contain fillers, which tend to settle over time. It is therefore recommended to carefully homogenize the complete contents of the container before use. In the storage vessels of the production equipment, the pre-filled products should be stirred up from time to time to avoid sedimentation and irregular metering.

 

Mixing

To facilitate stirring and removal, highly filled components are heated to 40-60°C in the original container (e.g. overnight in an oven). To prepare the casting mix the resin component should be homogenized in holding tank A at 60-70°C under a vacuum of 1-5 mbar, the hardener component in holding tank B at 25-60°C and a vacuum of 1-5 mbar.

 

Curing

To determine whether cross-linking has been carried to completion and the final properties are optimal, it is necessary to carry out relevant measurements on the actual object or to measure the glass transition temperature. Different gel and cure cycles in the customer’s manufacturing process could lead to a different degree of cross- linking and thus a different glass transition temperature.

Properties

Flame Rating

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Electrical Properties

Condition : at 23°C, Cured for 3h/80°C + 6h/100°C.

Property Value Unit Test method
Dielectric Constant (50Hz, 25°C) 5 - IEC 60250
Dielectric Loss Factor (tan δ, 50Hz, 25°C) 4.8 % IEC 60250
Dielectric Strength (2 mm specimen) 28 kV/mm IEC 60243-1
Tracking Resistance min. 600 CTI, grade IEC 60112
Mechanical & Physical Properties

Mechanical and Physical Properties: 

  • at 23°C, Cured for 3h/80°C + 6h/100°C.
Elongation at break 12 % ISO 527
Flammability V-0 - UL 94 RD E96722
Flexural Modulus 260 MPa ISO 178
Flexural Strength 13 MPa ISO 178
Glass Transition Temperature 32 °C ISO 11357-2
Hardness 55 Shore D DIN 53505
Tensile Modulus 180 MPa ISO 527
Tensile Strength 9 MPa ISO 527
Thermal Class F - IEC 60085
Thermal Conductivity 0.68 W/mK ISO 8894-1

Storage & Handling

Storage Conditions
  • Store the components in a dry place according to the storage conditions stated on the label 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 after reanalysis.
  • Partly emptied containers should be tightly closed immediately after use.