Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Applications
- Cure Method
- Applications
- Encapsulation
- Electrics & Electronics
- Electrics, Electronics & Lighting
- Application Details
- All-round potting compound
Processing
- Catalyst T 37 is admixed to ELASTOSIL® RT 426 for long, and Catalyst T 40 for short pot lives and curing times. We recommend running preliminary tests to optimize conditions for the particular application.
- The pot life is the period of time at 23 °C / 50 % rel. humidity during which the catalyzed mix to attain a viscosity of 100,000 mPa s and still be just pourable.
Catalyst Paste T40
Pot Life, approx. [minutes]
Curing time (tack-free), approx.[h]
3% T37 90 20-24 2% T40 40 3-4
Properties
- Typical Properties
- Catalyst Properties
- Cured Properties
- Properties
- Low viscosity
- High cured hardness
- Excellent heat resistance
- Note
Catalyzed with 3 wt % Catalyst T 37, after 4 days at 23 °C / 50 % relative humidity for catalyzed properties.
| Value | Units | Test Method / Conditions | |
| Density (at 20°C) | approx. 1.44 | g/cm³ | DIN 53217 |
| Dynamic Viscosity (at 23°C) | 15000 - 25000 | mPa·s | Brookfield |
| Value | Units | Test Method / Conditions | |
| Dynamic Viscosity (at 23°C) | 10000 | mPa·s | ISO 3219 |
| Value | Units | Test Method / Conditions | |
| Density (in water, at 23°C) | 1.44 | g/cm³ | ISO 2781 |
| Elongation (at break) | 120 | % | ISO 37 |
| Linear Shrinkage | 0.8 | % | — |
| Shore Hardness A | 60 | — | ISO 868 |
| Tear Strength | min. 4 | N/mm | ASTM D 624 B |
| Tensile Strength | 4.5 | N/mm² | ISO 37 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Note
- Being a condensation-curing silicone rubber, ELASTOSIL® RT 426 contains only constituents that over many years have proved to be neither toxic nor aggressive.
- Special handling precautions are therefore not required, i.e., only the general industrial hygiene regulations apply.
- Catalysts T 37 and T 40 contain a tetraorganotin compound, are flammable and may cause irritation in contact with the eyes and skin. Adequate protective measures are required.
Packaging & Availability
- Country Availability
- Regional Availability