ARATHANE® CW 5620 ACC 2 / ARATHANE® HY 5610

ARATHANE® CW 5620 ACC 2 / ARATHANE® HY 5610 is a polyurethane, halogen-free, casting and impregnating system for processing and curing at room temperature. Soft multipurpose polyurethane system for pressure-sensitive devices. Available in various colors. It is used in Transformers, filters, capacitors, etc.

RTU Product Type: Casting Resin, Impregnating Resin System

Product End Uses: Capacitors, Filters, Pressure Sensitive Devices, Transformers

Chemical Family: Polyurethanes (PU)

Composites Processing Methods: Casting, Impregnation

Features: Excellent Flow Properties, Good Thermal Conductivity, Non Abrasive, Room Temperature Curing, Thermal Shock Resistant

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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Ready-to-Use Product Features
Product Properties
  • Halogen free system.
  • Excellent flow properties.
  • Good thermal conductivity.
  • Non abrasive casting system.
  • Good thermal shock resistance.
  • Flammability: UL 94 V-0 (6 mm).

Applications & Uses

Composites Processing Methods
Product End Uses
Processing Information

Gel Time, Viscosity and Curing

 

Gel time at 25℃ ARATHANE® CW 5620 ACC 2 / ARATHANE® HY 5610 Gelnorm sec 60 - 130*
Minimum Curing Cycle 24 hours at RT or 6 hours at 80℃

 

Preparation:

  • ARATHANE® CW 5620 ACC 2 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 crosslinking and thus a different glass transition temperature.

 

Processing Methods

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

Properties

Flame Rating

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Electrical Properties
Property Test Method Unit Value
Dielectric strength (2 mm specimen) IEC 60243-1 kV/mm 25
Dielectric loss factor (tan δ, 50Hz, 25°C) IEC 60250 % 11
Dielectric constant (εr, 50Hz, 25°C) IEC 60250 - 6
Volume resistivity (ρ, 25°C) IEC 60093 Ω·cm 10¹³
Electrolytic corrosion IEC 60426 grade A/1
Tracking resistance IEC 112/79 CTI > 600

 

 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 20
Shear modulus ISO 6721 MPa 55
Max. service temperature IEC 60085 - Class B
Temperature index TI IEC 60216 °C 152
Relative temperature index RTI UL 746B, E96722 °C 130
Tensile modulus ISO 527 MPa 21
Tensile strength ISO 527 MPa 7
Elongation at break ISO 527 % 70
Thermal linear coefficient Alpha 1 ISO 11359-2 ppm/K 55
Thermal linear coefficient Alpha 2 ppm/K 150
Thermal conductivity ISO 8894-1 W/mK 0.5
Hardness DIN 53505 Shore A / D 85 / 40
Flammability UL 94 - V-0 (6 mm)
Water absorption ISO 62/80 % by wt. 1 day at 23°C – 0.15
% by wt. 10 days at 23°C – 0.5
% by wt. 30 min at 100°C – 0.33

 

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

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 5610 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.