Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Cure Method
- Applications
Encapsulation of electronic components
- Application Details
Processing
- ELASTOSIL® RT 563 is cured by adding Catalyst T37 for long pot lives and curing times, or Catalyst T40 for short pot lives and curing times.
- 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 T 37 and T 40 act as solvents until curing is complete. Preliminary tests must therefore be carried out to ensure that they are compatible with the components.
Properties
- Typical Properties
- Catalyst Properties
- Cured Properties
- Properties
- Excellent flow
- High hardness
Value | Units | Test Method / Conditions | |
Density (at 20°C) | approx. 1.27 | g/cm³ | DIN 53217 |
Dynamic Viscosity (at 23°C) | 4000 - 7000 | mPa·s | Brookfield |
Value | Units | Test Method / Conditions | |
Curing Time (tack-free, Mixing ratio wt 4% Catalyst T 37) | 24 | hours | — |
Curing Time (tack-free, Mixing ratio wt 4 % Catalyst T 40) | 8 | hours | — |
Dynamic Viscosity (at 23°C, Mixing ratio wt 4% Catalyst T 37) | 5000 | mPa·s | ISO 3219 |
Dynamic Viscosity (at 23°C, Mixing ratio wt 4 % Catalyst T 40) | 5000 | mPa·s | ISO 3219 |
Linear Shrinkage (at 23°C, Mixing ratio wt 4% Catalyst T 37) | 1 | % | — |
Linear Shrinkage (at 23°C, Mixing ratio wt 4 % Catalyst T 40) | 1 | % | — |
Pot Life (up to 60000 mPa.s, Mixing ratio wt 4% Catalyst T 37) | 160 | minutes | — |
Pot Life (up to 60000 mPa.s, Mixing ratio wt 4 % Catalyst T 40) | 35 | minutes | — |
Value | Units | Test Method / Conditions | |
Density (in water, at 23°C) | 1.27 | g/cm³ | ISO 2781 |
Elongation (at break) | 120 | % | ISO 37 |
Shore Hardness A | 55 | — | ISO 868 |
Tear Strength | 3 | 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 563 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