Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Product Features
- Flexible castings with good thermal ageing stability
- Good thermal shock resistance
- Flammability: UL 94 approval (V-0 for 6 mm )
Applications & Uses
- Composites Processing Methods
- Product End Uses
- Markets
- Applications
- Processing Information
- ARALDITE® CW 2243-1 L 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.
- 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.
- 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 / Vacuum casting
- Application Information
- Voltage regulators
- Suppressor chokes
- Proximity switches
- Ferrite core transformers
Properties
- Flame Rating
Regulatory & Compliance
Technical Details & Test Data
- Mechanical & Physical Properties
Condition: cured for 24 h/25°C+6 h/60°C
Property Value Unit Test Method Color of castings Beige - - Specific gravity at 25°C 1.58 g/cm³ DIN 55 990 Shore D hardness (4 mm plate) at 25°C 70 Shore D DIN 53 505 Glass transition temperature 31 °C ISO 6721 Storage Modulus (G) 430 MPa ISO 6721 Flexural strength (max. bending stress) at 25°C 24 MPa ISO 178 Surface strain (failure) at 25°C >15 % ISO 178 Impact strength at 25°C 12 kJ/m² ISO 179 Compressive strength (max. tensile stress) at 25°C 31 MPa ISO 604 Tensile strength (max. tensile stress) at 25°C 16 MPa ISO/R 527 Elongation at break at 25°C 15 % ISO/R 527 Elastic modulus from tensile test at 25°C 960 MPa ISO/R 527 Flammability V-0 (6 mm) - UL 94 Water absorption (10 days at 23°C) 0.25 % by wt. ISO 62 Water absorption (30 min at 100°C) 0.5 % by wt. ISO 62 Coefficient of linear thermal expansion (22-71°C) 111 ppm/K DIN 53 752 Coefficient of linear thermal expansion (22-140°C) 117 ppm/K DIN 53 752 Thermal conductivity at 18°C 0.8 W/mK DIN 52 612 Electrolytic corrosion AN/1.2 - DIN 53 489 Tracking resistance >600 - IEC 60112 Electric strength (20 s value for 2 mm plate) at 23°C 15 kV/mm IEC 60243 
Safety & Health
- Handling Precautions
protective clothing yes gloves essential arm protectors recommended when skin contact likely
goggles/safety glasses yes respirator/dust mask recommended Skin protection before starting work Apply barrier or nourishing cream.
after washing Dab off with absorbent paper, wash with
Cleansing of contaminated skin 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.
of workplace Exhaust fans. Operatives should avoid inhaling vapours.
- First Aid
- 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. In all cases of doubt call for medical assistance.
- Disposal
Regular procedures approved by national and/or local authorities
Storage & Handling
- Storage Conditions
- Store the components in a dry place at RT, 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 November be processed only after reanalysis.
- Partly emptied containers should be tightly closed immediately after use.
Other
- Application Information
Value Units Test Method / Conditions Mix Ratio 0.11 %(W) %(W) Hardener : Resin