Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Applications
- Application Area
- Cure Method
- Applications
Encapsulation of electronic components
- Application Details
Processing
Surface Preparation
- All surfaces must be clean and free of contaminants that will inhibit the cure of WACKER SilGel® 612 EH. 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
Only components A and B with the same lot number may be processed together. Component B of WACKER SilGel® 612 EH contains the platinum catalyst, component A the crosslinker. Even traces of the platinum catalyst may cause gelling of the component containing the crosslinker. To eliminate any air introduced during dispensing or trapped under components or devices a vacuum encapsulation is recommended.
Curing
The curing time is highly dependent on temperature, size and heat sink properties of the component being potted.
Temperature Curing Time, Layer thickness 1cm 23°C 2 hours 70°C 10 minutes 120°C 3 minutes
Properties
- Color
- Flame Rating
- Physical Form
- Catalyst Properties
- Cured Properties
- Uncured Properties
- Properties
- Two-part, 1:1 mixing ratio
- Rapid cure
- Low hardness (silicone gel)
- Note
Cured for 30 min at 150°C for Cured properties
| Value | Units | Test Method / Conditions | |
| Dynamic Viscosity (A+B, at 25°C) | 1000 | mPa·s | DIN EN ISO 3219 |
| Gel Time (A+B, at 23°C) | 18 - 50 | minutes | — |
| Mix Ratio (A:B) | 1:1 | parts by weight | — |
| Platinum Catalyst in Component (A+B) | Component B | — | — |
| Pot Life (A+B, at 23°C) | 10 - 25 | minutes | ISO 6721-10 |
| Value | Units | Test Method / Conditions | |
| Density (at 23°C) | 0.97 | g/cm³ | DIN EN ISO 1183-1 A |
| Penetration (150g hollow cone, 1 min) | 15 | mm | DIN ISO 2137 |
| Volume Resistivity | 10¹⁵ | Ohm-cm | IEC 62631-3-1 |
| Value | Units | Test Method / Conditions | |
| Density (at 23°C, Componenet A) | 0.97 | g/cm³ | DIN EN ISO 2811-1 |
| Density (at 23°C, Componenet B) | 0.97 | g/cm³ | DIN EN ISO 2811-1 |
| Dynamic Viscosity (Component A, at 25°C) | 1000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (Component B, at 25°C) | 1000 | mPa·s | DIN EN ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Notes
According to the latest findings WACKER SilGel® 612 EH A/B being an addition-curing silicone rubber contains neither toxic nor aggressive substances which might require special handling precautions. General industrial hygiene regulations should be observed.
Packaging & Availability
- Country Availability
- Regional Availability