ARALDITE® CY 5836 / ARADUR® HY 5836

ARALDITE® CY 5836 / ARADUR® HY 5836 is an unfilled, hot-curing, two-component epoxy casting resin system, designed for outdoor applications

RTU Product Type: Casting Resin

Product End Uses: Outdoor Electrical Insulating Components, Transformers

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Automatic Pressure Gelation (APG), Casting, Pressure Gelation (PG)

Features: Excellent Dielectric Properties, Good Electrical Properties, Good Erosion Resistance, Good Mechanical Properties, Thermal Shock Resistant

Cure Method: Heat Cure

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family
Fillers Included
RTU Product Type
Technologies
Product Families

Features & Benefits

Ready-to-Use Product Features
Features and Benefits
  • Very good mechanical and electrical properties.
  • Good temperature shock resistance.
  • Use of silanized fillers enhances stability of dielectrical properties under high- humidity conditions.
  • Very good resistance to erosion by UV radiation.

Applications & Uses

Composites Processing Methods
Cure Method
Product End Uses
Processing Information

Mechanical and Physical Properties

Property

Test Method

Condition

Test Value

Tensile strength ISO R 527 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 85 N/mm²
Elongation at break ISO R 527 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 1.3 %
E modulus from tensile test ISO R 527 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C

ca. 11500 N/mm²

Flexural strength at 25°C ISO 178 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 150 MPa
Elongation at 25°C ISO 178 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 1.7 %
E modulus from flexural test ISO 178 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 12000 MPa
Critical stress intensity factor (KIC) PM 216/89 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C

ca. 2.8 MPa·m¹/₂

Specific energy at break (GIC) PM 216/89 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 600 J/m²
Glass transition temperature (DSC) IEC 1006 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C 73 - 88 °C
Coefficient of thermal expansion (CTE) TMA Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 35 ppm/K
Thermal conductivity ISO 8894/90 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C ca. 0.9 W/mK
Water absorption (specimen: 50x50x4 mm) ISO 62 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C

10 days at 23°C: 0.10 - 0.20 % by wt.

    Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C

60 min at 100°C: 0.08 - 0.15 % by wt.

Density (Filler load: 62% by wt.) DIN 55990 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C

ca. 1.8 g/cm³

Electrical Properties

Property

Test Method

Condition

Test Value

Breakdown strength IEC 60243-1 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C 18 - 20 kV/mm
Tracking resistance IEC 60112 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C CTI > 600M-0.0
Electrolytic corrosion effect DIN 53489 Cured for 6h at 80°C + 8h at 130°C, Determined on standard test specimen at 23°C Grade A1
Application Information

Outdoor electrical insulation material for medium and high voltage application, such as current and potential transformers

System Preparation

The following is the suggested preheat temperature of ARALDITE® Resin and ARADUR® Hardener:
ARALDITE resin: 50°C for 6 to 12 hrs
ARADUR hardener: room temperature
Filler: 80°C - 110°C for 6 to 12 hrs depends on process condition.

Mix all of the components together very thoroughly (the mixture temperature will be reached at or about 60°C. If lower mix viscosity is expected, preheat resin at higher temperature but not exceed 80°C) under vacuum. Proper mixing will result in:

  • Better flow properties and reduced tendency to shrinkage.
  • Lower internal stresses and therefore improved mechanical properties on object.
  • Improved partial discharge behaviour in high voltage applications.

For the mixing of medium to high viscous ARALDITE casting resin systems and for mixing at lower temperatures, it is recommended special thin film degassing mixers that may produce additional self-heating of 10 - 15°C as a result of friction. For low viscous ARALDITE casting resin systems, conventional anchor mixers are usually sufficient.
In larger plants, two pre-mixers are used to mix the individual components (resin, hardener) under vacuum. Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premix can be stored at elevated temperature (about 60°C) for up to about 1 week, depending on formulation. Intermittent agitation during storage is advisable to prevent filler sedimentation. Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. The required vacuum is 0.5 to 8 mbar. The vapour pressure of the individual components should be taken into account.

Properties

Notes

ARADUR® HY 5836 VN Hardener is sensitive to moisture. Partly emptied containers must be resealed immediately.

Safety & Health

Handling Precautions

Protective clothing

Yes
Gloves Essential
Arm protector

Recommended when skin contact likely

Goggestery diasses

Yes

Respirator/dust mask

Recommended

Skin protection before starting work

Apply barrier cream to exposed skin

Skin protection after washing

Apply barrier or nourishing cream

Skin protection cleansing of contaminated skin

Dab off with absorbent paper, wash with warm water and alkali-free soap, then dry with disposable towels. Do not use solvents

Clean shop requirements

Cover workbenches, etc. with light coloured paper. Use disposable breakers, etc.

Disposal of spillage

Soak up with sawdust or cotton waste and deposit in plastic-lined bin

Ventilation: of workshop

Renew air 3 to 5 times an hour

Ventilation: of workplace

Exhaust fans. Operatives should avoid inhaling vapours.

First Aid Information
  • Contamination of the eyes by resin, hardener or casting mix should be treated immediately by flushing with clean, running water for 10 to 15 minutes. A doctor should then be consulted.
  • Material smeared or splashed on the skin should be dabbed off, and the contaminated area then washed and treated with a cleansing cream (see above). A doctor should be consulted in the event of severe irritation or burns. Contaminated clothing should be changed immediately.
  • Anyone taken ill after inhaling vapours should be moved out of doors immediately.

Storage & Handling

Storage Conditions

Store the components dry at 2 - 40°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 reanalyzes. Partly emptied containers should be tightly closed immediately after use.