ARATHANE® CW 5631 / ARATHANE® HY 5611-1

ARATHANE® CW 5631 / ARATHANE® HY 5611-1 is a thermal Class F casting and impregnating system for high-temperature applications Processing and curing at room temperature. It is used in transformers, filters, capacitors, etc. Electrical devices working in a potentially explosive environment.

 

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, Impregnating Resin System

Product End Uses: Capacitors, Electrical Applications, Filters, Transformers

Chemical Family: Polyols

Processing & Application Methods: Casting, Impregnation

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

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Identification & Functionality

Chemical Family
Polyols
RTU Product Type
Casting Resin,
Impregnating Resin System
Technologies
Composite Materials
Product Families
Composite Materials — Resin Systems
Casting,
Impregnating Resin

Features & Benefits

Product Features
Good Flow Properties,
Good Thermal Conductivity,
Non-Abrasive,
Thermal Shock Resistance
Product Properties
  • High thermal endurance.
  • Excellent flow properties.
  • Good thermal conductivity.
  • Non abrasive casting system.
  • Good thermal shock resistance.
  • Flammability: UL 94 V-0 (6 mm).

Applications & Uses

Product End Uses
Capacitors,
Electrical Applications,
Filters,
Transformers

Properties

Flame Rating
UL 94 V0

Regulatory & Compliance

Compliance (Industry Standards)
UL 94

Technical Details & Test Data

Electrical Properties
Property Test Method Unit Value
Dielectric strength (2 mm specimen) IEC 60243-1 kV/mm 29
Dielectric loss factor (tan δ, 50Hz, 25°C) IEC 60250 % 3
Dielectric constant (εr, 50Hz, 25°C) IEC 60250 - 4.5
Volume resistivity (ρ, 25°C) IEC 60093 Ω·cm 10¹⁴
Electrolytic corrosion IEC 60426 grade A/1

 

Note: Determined on standard test specimen at 23°C. Cured for 24h/RT + 6h/80°C.

Mechanical & Physical Properties
Property Test Method Unit Value
Glass transition temperature ISO 6721 °C 47
Shear modulus ISO 6721 MPa 1260
Max. service temperature IEC 60085 - Class F
Tensile modulus ISO 527 MPa 2100
Tensile strength ISO 527 MPa 30
Elongation at break ISO 527 % 6
Flexural Modulus ISO 178 MPa 2300
Flexural Strength ISO 178 MPa 53
Thermal linear coefficient Alpha 1 ISO 11359-2 ppm/K 70
Thermal linear coefficient Alpha 2 ppm/K 135
Thermal conductivity ISO 8894-1 W/mK 0.6
Hardness DIN 53505 Shore D 80
Flammability UL 94 - Not certified / V-0 (6 mm)
Water absorption ISO 62/80 % by wt. 1 day at 23°C – 0.1
% by wt. 10 days at 23°C – 0.28
% by wt. 30 min at 100°C – 0.3

 

Note: Determined on standard test specimen at 23°C. Cured for 24h/RT + 6h/80°C.

Processing Information

Gel Time, Viscosity and Curing

 

Property Material Method Unit Value
Mix Viscosity at 25°C ARATHANE® CW 5631 / ARATHANE® HY 5611-1 Rheomat mPa·s 3700
Gel time at 25°C ARATHANE® CW 5631 / ARATHANE® HY 5611-1 Gelnorm min 60
Pot life (Time to reach 5000 mPa·s) ARATHANE® CW 5631 / ARATHANE® HY 5611-1 Rheomat min 7
Minimum Curing Cycle 24 hours at RT or 6 hours at 80°C

 

Preparation:

  • ARATHANE® CW 5631 contains 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

  • The casting mix is best prepared by heating the resin up to 40 – 50 °C before stirring in the hardener.
  • Brief degassing of the mix under 5 – 10 mbar vacuum improves the mixture homogeneity and enhances the dielectric properties of the castings.

 

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.

 

Processing Methods

  • Casting / Impregnating.
  • Manually or with automatic mixing and dosing equipment.

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.
  • ARATHANE® HY 5611-1 must be protected from moisture.
  • Storage tanks should be blanketed with dry air or nitrogen.
  • Storage at temperatures above 50°C is not recommeded, since this can lead to the formation of insoluble solids and also the viscosity buid-up increases on extended storage.
  • Storage at low temperature is not recommeded because it may lead to some crystallisation.
  • Crystallised material must be melted out immediately by short time heating.
  • For information on waste disposal and hazardous products of decomposition in the event of a fire, refer to the Material Safety Data Sheets (MSDS) for these particular products.

Other

Processing & Application Methods
Casting,
Impregnation
Application Information
ValueUnitsTest Method / Conditions
Mix Ratio0.25%(W)Hardener : Resin