Enhanced TDS
Identification & Functionality
- Chemical Family
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Composites Processing Methods
- Product End Uses
- Markets
- Applications
Technical Details & Test Data
- Properties
Property Test Condition Standard/Test Method Unit Value Shore D hardness (4 mm plate) at 25°C DIN 53 505 - 75 Glass transition temperature (DSC, Mettler TA 4000) - DIN 51 005 °C 98 Tensile strength (max. tensile stress) at 25°C ISO/R 527 MPa 82 Elongation at break at 25°C ISO/R 527 % 3 Elastic modulus from tensile test at 25°C ISO/R 527 MPa 3740 Water absorption (10 days) at 23°C ISO 62 % 0.22 Water absorption (30 min) at 100°C ISO 62 % 0.12 Dielectric constant εr (50 Hz) at 23°C DIN 53483 - 3.1 Dielectric constant εr (50 Hz) at 60°C DIN 53483 - 3.2 Dielectric constant εr (50 Hz) at 80°C DIN 53483 - 3.2 Dielectric constant εr (50 Hz) at 100°C DIN 53483 - 3.6 Dissipation factor tan δ (50 Hz) at 23°C DIN 53483 % 0.1 Dissipation factor tan δ (50 Hz) at 60°C DIN 53483 % 0.1 Dissipation factor tan δ (50 Hz) at 80°C DIN 53483 % 0.5 Dissipation factor tan δ (50 Hz) at 100°C DIN 53483 % 6.4 Volume resistivity ρ at 23°C DIN 53482 Ω·cm 6×1016 Volume resistivity ρ at 60°C DIN 53482 Ω·cm 1×1016 Volume resistivity ρ at 80°C DIN 53482 Ω·cm 1×1015 Volume resistivity ρ at 100°C DIN 53482 Ω·cm 2×1013 Electrolytic corrosion - DIN 53489 grade A-1 Tracking resistance - IEC 112 CTI>600-0.2 Electric strength (20 s for 2 mm plate, 50 Hz) at 23°C IEC 243 kV/mm 19 Note: Guideline values determined on standard test specimens cured for 2 h/80°C + 2 /120°C
- Processing Information
Processing
- The filled resin component should be stirred and homogenized in the original container before use.
- 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.
Mix Ratio
ARALDITE® MY 757 parts by weight 100 Hardener HY 2918 parts by weight 85 ACCELERATOR DY 062 parts by weight 1.3 Processing data (Guideline values)
Initial viscosity (Hoeppler) at 25°C mPa s 213 Initial viscosity (Hoeppler) at 60°C mPa s 35 Pot life (Hoeppler) to 1500 mPa.s at 60°C h 41/4 to 15000 mPa.s at 25°C h >75 Minimum cure time - h/°C 2/80+2/120
Safety & Health
- Safety Information
First Aid
- Contamination of the eyesby 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.
Storage & Handling
- Storage Conditions
- Store the components in a dry place at 18-25°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 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.
- Handling Information
Safety Precautions Protective clothing Yes Gloves Essential Arm protectors Recommended when skin contact likely
Goggles/safety glasses Yes Respirator/dust mask Recommended Skin Protection Skin protection before starting Apply barrier cream to exposed skin
Skin protection after washing Apply barrier or nourishing cream
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 Ventilation of workshop Renew air 3 to 5 times an hour
Ventilation of workplace Exhaust fans. Operatives should avoid inhaling vapours.