Evonik Polymer OH 2
- CASE Ingredients Features
- Chemical ResistanceExcellent AdhesionHigh DurabilityThermal ResistanceUV Resistance
Evonik Polymer OH 2 is a polydimethyl siloxane with terminal silanol groups, serving as a fundamental component in the formulation of condensation-curing silicone elastomers. This product is offered in a range of viscosity levels, spanning from 100 to 400,000 mPas. In its physical form, it appears clear and colorless. Chemically, it is characterized as hydroxy-terminated polydimethyl siloxanes.
Properties
- Physical Form
- Liquid
Identification
- CASE Ingredients Functions
- Binder & ResinReactive DiluentRheology Modifier
Other characteristics
- Functions
Binder & Resin, Reactive Diluent, Rheology Modifier
- Markets
- Adhesives & Sealants
- Electrical & Electronics
- Storage
- Dry, up to 30 °C (86 °F) in sealed containers
- PACKAGING
- 950 kg IBC PE, 190 kg drum
- Appearance
- Clear, colorless liquid
- Shelf LIfe
- 24 months
- Application
Polymer OH can be cured with usual condensation crosslinkers such as alkoxy silanes, acetoxy silanes, oxime silanes (Crosslinker OX) and enoxy silanes in connection with catalysts (e. g. tin catalysts, Catalyst TD 18). Especially the low-viscosity types can be used as reactive diluents for the viscosity adjustment in a mixture with higher viscosity polymers. The crosslinking reaction occurs in connection with water. In conventional single-component formulations, this water can be introduced through humidity. However, Polymer OH can also be formulated as two component systems. In that case, the required water is added through the second component. Substantially higher curing rates and depths are achieved in this way.
- Technology
- CASE Ingredients
- Packaging Type
- Drums
- Totes (IBC)
- Chemical Inventories
- AICS (Australia)
- DSL (Canada)
- EINECS (EU)
- ELINCS (EU)
- ENCS (Japan)
- IECSC (China)
- NZIoC (New Zealand)
- PICCS (Phillipines)
Technical data
Table 1 of 1
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Viscosity (at 25°C) | 2000 | mPa·s |
| Refractive Index (nD²⁰) | 1.4058 | — |
| Density (at 20°C) | 0.98 | g/cm³ |
