Enhanced TDS
Identification & Functionality
- Chemical Family
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Composites Processing Methods
- Cure Method
- Product End Uses
- Processing Methods
Conventional casting, or vacuum impregnating
- Application Information
Encapsulating or potting of low-voltage and electronic components
Properties
- Physical Form
- Product Data
Araldite® MY 740
Property Key Value Unit Test Method Condition Viscosity (Hoeppler) 10,000 - 14,500 mPa s ISO 12058 at 25°C Specific gravity 1.16 g/cm³ ISO 1675 at 25°C Flash point > 200 °C ISO 1523 Epoxy content 5.25 - 5.55 Eq/kg ISO 3001 Vapour pressure (at 20°C) < 0.5 Pa Knudsen at 20°C Vapour pressure (at 60°C) < 0.01 Pa Knudsen at 60°C Araldite® F
Property Key Value Unit Test Method Condition Viscosity (Hoeppler) 9,000 - 12,000 mPa s ISO 12058 at 25°C Specific gravity 1.15 - 1.20 g/cm³ ISO 1675 at 25°C Flash point > 200 °C ISO 1523 Epoxy content 5.10 - 5.30 Eq/kg ISO 3001 Aradur® HY 2918
Property Key Value Unit Test Method Condition Viscosity (Hoeppler) 50 - 80 mPa s ISO 12058 at 25°C Specific gravity 1.2 g/cm³ ISO 1675 at 25°C Flash point > 140 °C ISO 1523 at 25°C Aradur® HY 905
Property Key Value Unit Test Method Condition Viscosity 150 - 200 mPa s ISO 12058 at 25°C Specific gravity 1.2 g/cm³ ISO 1675 at 25°C Flash point 150 °C ISO 1523 at 25°C Accelerator DY 062
Property Key Value Unit Test Method Condition Viscosity (Epprecht TV) 10 mPa s ISO 12058 at 25°C Specific gravity 0.9 g/cm³ ISO 1675 at 25°C Flash point 59 °C ISO 1523 at 25°C "
Technical Details & Test Data
- Cured Properties
Condition : Guideline values determined on standard test specimens Cured for 2 h/80°C and 2h/120°C
Property Value 1 Value 2 Value 3 Unit Test Method Shore D hardness (4 mm plate) 76 73 75 DIN 53 505 Glass Transition Temperature 123 109 108 °C ISO11357 Tensile strength 61 88 90 MPa ISO 527 Elongation at break 2 4 4 % ISO 527 Elastic modulus 3637 3436 3490 MPa ISO 527 Water Absorption (10 days at 23°C) 0.28 0.25 0.25 % ISO 62 Water Absorption (30 min at 100°C) 0.05 0.05 0.16 % ISO 62 Dielectric constant (50 Hz) at 23°C 3.3 3.2 3.2 IEC 60250 Dielectric constant at 60°C 3.3 3.2 3.3 IEC 60250 Dielectric constant at 80°C 3.3 3.3 3.3 IEC 60250 Dielectric constant at 100°C 3.4 3.4 3.4 IEC 60250 Dissipation factor tan (50 Hz) at 23°C 0.1 0.1 0.1 % IEC 60250 Dissipation factor tan at 60°C 0.1 0.1 0.1 % IEC 60250 Dissipation factor tan at 80°C 0.1 0.1 0.1 % IEC 60250 Dissipation factor tan at 100°C 0.3 0.8 0.8 % IEC 60250 Volume resistivity at 23°C 3x1016 3x1016 6x1016 cm IEC 60093 Volume resistivity at 60°C 2x1016 2x1016 3x1016 cm IEC 60093 Volume resistivity at 80°C 1x1016 6x1015 9x1015 cm IEC 60093 Volume resistivity at 100°C 1x1015 6x1014 1x1015 cm IEC 60093 Electrolytic corrosion A-1 A-1 A-1 IEC 60426 Tracking resistance >600 >600 >600 CTI IEC 60112 Electric strength (20 s for 2 mm plate, 50 Hz at 23°C ) 19 19 19 kV/mm IEC 60243 - Product Properties
- Good mechanical and dielectric properties
- Good ageing resistance
- Processing Guidelines
Minimum curing time 2h 80°C + 2h 120°C
System 1 2 3 Initial viscosity (Hoeppler) at 25°C mPa s 950 1510 2125 at 60°C mPa s 70 120 150 Pot life (Hoeppler) to 1500 mPa s at 60°C h 31/4 21/2 31/2 to 15 000 mPa s at 25°C h >50 >30 >32
Safety & Health
- Disposal
Regular procedures approved by national and/or local authorities
- Handling Precautions
Personal hygiene Safety precautions at workplace protective clothing overalls gloves essential arm protectors recommended when skin contact likely goggles/safety glasses yes Skin protection before starting work Apply barrier cream to exposed skin 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 solventsDisposal of spillage Soak up with sawdust or cotton waste and deposit in
plastic-lined binVentilation of workshop Renew air 3 to 5 times an hour Ventilation of workplaces Exhaust fans. Operatives should avoid inhaling
vapoursFirst Aid : Contamination of the eyes by resin, hardener or 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 at 18-25°C, in tightly sealed and dry original containers. Under these conditions, the shelf life will correspond to the expiry date stated on the label. Product specific advise regarding storage can be found on product label. After this date, the product December be processed only following reanalysis. Partly emptied containers should be closed tightly immediately after use.