Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Special Features
- Addition Curing
- Flowable
- Thermally conductive
- Two-component
Applications & Uses
- Markets
- Applications
- Application Area
- Cure Method
- Applications
- Battery
- Thermal Interface Management
- Application Details
Encapsulation of electronic components
Processing
Caution:
Only components A and B with the same lot number may be processed together. To ensure homogeneity of the material, the components must be stirred thoroughly before they are removed or processed in their containers, in order to uniformly disperse any filler that might have settled during storage.
Surface preparation:
All surfaces must be clean and free of contaminants that will inhibit the cure of ELASTOSIL® RT 675 A/B. Examples of inhibiting contaminants are sulfur containing materials, plasticizers, urethanes, amine containing materials and organometallic compounds – especially organotin compounds. If a substrate’s ability to inhibit cure is unknown, a small scale test should be run to determine compatibility.
Mixing:
- Component A of ELASTOSIL® RT 675 contains the platinum catalyst, component B the crosslinker. Even traces of the platinum catalyst may cause gelling of the component containing the crosslinker. Therefore tools (spatula, stirrers, etc.) used for handling the platinumcontaining component or the catalyzed compound must not come into contact with this component.
- The two components should be thoroughly mixed at a 1 : 1 ratio by weight or volume.
- To eliminate any air introduced during dispensing or trapped under components or devices a vacuum encapsulation is recommended.
Curing:
- Curing time of addition curing silicone rubber is highly dependent on temperature, size and heat sink properties of the component being potted.
- The reactivity can be adjusted within wide limits by adding Catalyst EP or Inhibitor PT 88 to suit the processing requirements of the particular application.
- Catalyst EP increases the reactivity, i. e., pot life and curing time are reduced. Inhibitor PT 88 is a pot life extender and prolongs pot life and curing time.
Temperature Curing time, thickness 1 cm
23 °C 24 h 70 °C 60 min 100 °C 30 min 150 °C 10 min
Properties
- Catalyst Properties
- Cured Properties
- Uncured Properties
- Properties
- Two-part, 1 : 1 mixing ratio
- Very high hardness shore A
- Excellent heat stability
- High termal conductivity
- Note
Cured for 30 min at 150 °C in a circulating air oven for cured properties.
Value | Units | Test Method / Conditions | |
Dynamic Viscosity (A+B, of mix) | 50000 | mPa·s | ISO 3219 |
Mix Ratio (A:B) | 1:1 | parts by weight | — |
Platinum Catalyst in Component (A+B) | Component A | — | — |
Pot Life (A+B, at 23°C) | 150 | minutes | DIN EN ISO 2555 |
Value | Units | Test Method / Conditions | |
Density (at 23°C) | 2.3 | g/cm³ | DIN EN ISO 1183-1 A |
Elongation (at break) | 20 | % | ISO 37 Type 1 |
Permittivity | 5 | — | IEC 62631-2-1 |
Shore Hardness A | 80 | — | DIN ISO 48-4 |
Tensile Strength | 2 | N/mm² | ISO 37 Type 1 |
Volume Resistivity | 10¹⁵ | Ohm-cm | IEC 62631-3-1 |
Value | Units | Test Method / Conditions | |
Density (at 23°C, Componenet A) | 2.3 | g/cm³ | DIN EN ISO 2811-1 |
Density (at 23°C, Componenet B) | 2.3 | g/cm³ | DIN EN ISO 2811-1 |
Dynamic Viscosity (Component A, at 23°C) | 50000 | mPa·s | ISO 3219 |
Dynamic Viscosity (Component B, at 23°C) | 50000 | mPa·s | ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Regional Availability