Enhanced TDS
Identification & Functionality
- Chemical Family
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Key Properties
- Good heat resistance.
- Good resistance to atmospheric and chemical degradation.
Applications & Uses
- Composites Processing Methods
- Product End Uses
- Markets
- Applications
- Application Information
Encapsulating or potting of low voltage and electronic components.
- Processing Methods
Casting; vacuum casting.
Properties
- Physical Form
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Cured Properties
Glass Transition Temperature 54 °C ISO 6721 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Thermal Class B IEC 60085 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Storage Modulus G' 1100 MPa ISO 6721 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Tensile Modulus 2500 MPa ISO 527 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Tensile Strength 50 MPa ISO 527 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Elongation at Break 10 % ISO 527 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Hardness 80 Shore D DIN 53505 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Water Absorption 0.3 % by wt. ISO 62 at 23°C, for 10 days, Cured for 24 hours at RT + 6 hours at 60°C
Water Absorption 0.2 % by wt. ISO 62 at 100°C, for 30 min, Cured for 24 hours at RT + 6 hours at 60°C
Dielectric Strength 17 kV/mm IEC 60243-1 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C, 2 mm specimen
Dielectric Loss Factor 1.6 % IEC 60250 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C, tan δ, 50Hz, 25°C
Dielectric Constant 4.1 IEC 60250 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C, εr, 50Hz, 25°C
Volume Resistivity 10¹⁵ Ω cm IEC 60093 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C, ρ, 25°C
Comparative Tracking Index (CTI) min. 600 IEC 60112 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
Electrolytic Corrosion A - 1 grade IEC 60426 at 23°C, Cured for 24 hours at RT + 6 hours at 60°C
- Processing
Mixing
Measure (by weight or volume) the Araldite resin and the hardener. Add the hardener to the Araldite resin; making sure that the required amount of hardener is transferred to the resin. Stir thoroughly until mixing is complete. Air entrainment during mixing results in pores in the cured resin. Mixing under vacuum or in a metering-mixing machine is the most effective way to prevent air entrainment. Alternatively the static resin – hardener mixture may be deaerated in a vacuum chamber – allowing at least 200 % ullage for the foam to expand.
Curing
The chemical reaction initiated by mixing resin and hardener results in the generation of exothermic heat. The peak temperatures attained are determined by the starting temperature and the size and shape of the casting. Unfilled resin systems are suitable only for manufacturing castings weighing up to about 500 grams. Mineral filler should be added to dissipate heat and damp the exothermic reaction when producing large castings. There is very little exothermic reaction when producing very small castings or thin layers as the heat generated is rapidly dissipated. Cure is consequently delayed and the surfaces of castings may remain tacky. In such cases an infrared heater or oven at 40°C – 60°C should be used to effect full cure. When casting thick sections special care is needed to avoid excessive exothermic temperature rise. Short high-temperature curing schedules should not be used unless preliminary trials with castings manufactured to the specific design, and in the specified moulds, produce no unacceptable exothermic effects. 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 Guidelines
Mix viscosity at 25°C Araldit DBF / HY 2967 Rheomat mPa*s 2400 Mix viscosity at 40°C
Rheomat 600 Pot life at 25°C Time to reach 15000 mPa*s min 50 Pot life at 40°C Time to reach 15000 mPa*s min 30 Gel time at 25°C Araldit DBF / HY 2967 Gelnorm min 60 Gel time at 40°C Gelnorm min 30 Gel time at 60°C Gelnorm min 10 Minimum curing cycle
24 - 48 hours at RT or
4 hours at 40°C or
2 hours at 60°C
Storage & Handling
- Storage Conditions
Store the components in a dry place at room temperature, 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. 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
- Application Information
Value Units Test Method / Conditions Mix Ratio 0.35 %(W) Hardener : Resin