Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
Features & Benefits
- Ready-to-Use Product Features
- Specific Features
- Heat resistant
- Low volatile
- Low-temperature flexible
- UV stable
Applications & Uses
- Markets
- Application Area
- Cure Method
- Applications
Aerospace
- Application Details
- Mixing ratio is 9:1 p.b.w Before taking component A out of the container or adding the catalyst, stir the material thoroughly. Components A and B can be mixed by hand or with metering equipment. The material must be evacuated before application to remove enclosed the bubbles. For detailed information refer to our leaflet "Wacker RTV-2 Silicone Rubber Processing". Important: The platinum catalyst is contained in component A. Caution! Only components A and B that have the same lot numer may be processed together! Mixing of the components It is ablolutely imperative that any equipment, such as mixing vessels, spatulas and stirres, that is used to process Component A (which contains the platinum catalyst) or the mixture of both components does not come into contact with Component B (which contains the crosslinker). Therefore, all equipment should be clearly labeled.
- WACKER® RTV-S 691 A/B is used as silicone adhesive with minimum outgassing behavior for space projects, example bonding for solar cells in satellites.
- RTV-S691 can be applied by silk screen printing or by dispensing equipment. In order to make the rubber adhere to other materials (e. g. glass, aluminum, silver, epoxy resin, polyester resin), it is necessary to pretreat the surface with Primer G 790.
Properties
- Typical Properties
- Catalyst Properties
- Cured Properties
- Uncured Properties
- Properties
- Resistant to low temperatures
- Particularly low volatile contents
- Note
Cured properties at 5°C in press
| Value | Units | Test Method / Conditions | |
| Glass Transition Temperature | max. -100 | °C | — |
| Value | Units | Test Method / Conditions | |
| Dynamic Viscosity (Component B, at 23°C) | 18000.0 - 26000.0 | mPa·s | Brookfield |
| Mix Ratio (A:B) | 9:1 | parts by weight | — |
| Pot Life (up to 200,000 mPa.s, at 16s⁻¹) | 90 - 110 | minutes | Brookfield |
| Value | Units | Test Method / Conditions | |
| Collected Volatile Condensable Material (CVCM) | max. 0.1 | % | ESA ECSS-Q-70-02A |
| Density (in water, at 23°C) | 1.52 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 100 - 160 | % | ISO 37 |
| Modulus (at 100 % elongation, 23.0°C, 50.0 % r.h) | 1.33 - 1.53 | N/mm² | ISO 37 |
| Shore Hardness A | 50 - 60 | — | DIN ISO 48-4 |
| Surface Resistivity (at 100V) | min. (1.0 x 10¹²) | ohm | — |
| Tear Resistance | 4.0 - 6.0 | N/mm | ASTM D 624 B |
| Tensile Strength (Type 3) | 4.0 - 6.0 | N/mm² | ISO 37 |
| Total Mass Loss (TML) | max. 1.0 | % | ESA ECSS-Q-70-02A |
| Volume Resistivity (at 100V, 1 min) | min. 1.0 x 10¹⁴ | Ohm-cm | IEC 62631-3-1 |
| Value | Units | Test Method / Conditions | |
| Density (Componenet A) | 1.55 - 1.65 | g/cm³ | DIN EN ISO 2811-1 |
| Density (Componenet B) | 0.98 | g/cm³ | DIN EN ISO 2811-1 |
| Dynamic Viscosity (Component A, at 23°C, Spindle 5, 2.5 rpm) | 55000.0 - 70000.0 | mPa·s | Brookfield |
| Viscosity (at 25°C, Component B) | 200 - 240 | — | ISO 3219 |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Country Availability
- Regional Availability