Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Foam Type
- Technologies
- Product Families
Features & Benefits
- Materials Features
Applications & Uses
- Markets
- Applications
- Cure Method
- Product End Uses
- Applications
Automotive, Aerospace & Railway
- Application Details
- General purpose high and low temperature resistant sealing material.
- Suitable for sound and heat insulation
- Shock and vibration damping at high temperature changes.
- Especially suitable for applications that need fire redartent properties.
Processing
- ELASTOSIL® SC 833 A/B shows good primerless adhesion to many substrates (metals, glass, ceramics, PA, PBTP). If selfadhesion is not sufficient, surface treatment or a primer may be applied.
- For processing we recommend to use automatic mixing and dispensing equipment with dynamic mixer, our technical service will give advice for proper selection. The quality of the foam is highly influenced by processing parameters (e. g. addition of air, type of mixer) and environmental parameters.
- As ELASTOSIL® SC 833 A/B is an addition-curing system certain substances can inhibit the foaming and curing process. Our technical service will be glad to help to solve such problems. We recommend to run preliminary tests to optimize conditions for the particular application.
Attention:
- During foaming and curing hydrogen gas is evolved. Please ensure proper ventilation, if larger amounts of material are processed. Release of hydrogen is almost completed after 24 hours.
- The platinum catalyst is contained in component A.
- Only components A and B that have the same lot number may be processed together.
Properties
- Physical Form
- Typical Properties
- Catalyst Properties
- Cured Properties
- Uncured Properties
- Properties
- Low processing viscosity
- Good processability on automated dispensing equipment.
- Easy control of mixing quality due to different colors of the components.
- No ozone damaging blowing agents
- No release of toxic or strong smelling substances during foaming or curing.
- Low smoke gas toxicity
- Low heat of reaction
- High loss of ignition value
- Long-term flexible over a temperature range of -50 °C to +200 °C
- Good chemical resistance
- Note
Curing conditions: 15 min / 50°C, conditioning min. 24 h at 23 °C / 50 % relative humidity for cured properties.
| Value | Units | Test Method / Conditions | |
| Low Heat of Reaction | max. 40 | °C | — |
| Value | Units | Test Method / Conditions | |
| Curing Time (A+B, at 23°C) | 24 | hours | — |
| Mix Ratio (A:B) | 1:1 | parts by weight | — |
| Pot Life (A+B, at 25°C, Shear rate 1s⁻¹; up to 100000 mPa.s) | 280 | seconds | ISO 3219 |
| Tack-Free Time (A+B) | 15 | minutes | — |
| Value | Units | Test Method / Conditions | |
| Density (at 23.0°C) | 0.48 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 80 | % | ISO 1798 |
| Loss on Ignition | min. 32.0 | % | EN ISO 4589-2 / ASTM D2863 |
| Shore Hardness A (with skin) | 27 | — | DIN ISO 48-4 |
| Tensile Strength | 0.8 | N/mm² | ISO 1798 |
| Value | Units | Test Method / Conditions | |
| Density (at 23°C, Componenet A) | 1.13 | g/cm³ | DIN EN ISO 2811-1 |
| Density (at 23°C, Componenet B) | 1.15 | g/cm³ | DIN EN ISO 2811-1 |
| Dynamic Viscosity (Component A, at 25°C, Spindle 3, 2.5 rpm) | 15000 | mPa·s | Brookfield |
| Dynamic Viscosity (Component B, at 23°C, Spindle 3, 2.5 rpm) | 15000 | mPa·s | Brookfield |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Note
According to the latest findings, the components A + B of ELASTOSIL® SC 833 A/B, being an addition-curing RTV-2 silicone rubber, contains neither toxic or corrosive substances which would require special handling precautions. General hygiene regulations should be observed.
Packaging & Availability
- Country Availability
- Regional Availability