ZEMSIL OH-42
≡ DMS-S21Hydroxy-Terminated Polydimethylsiloxane (Medium MW)
CAS 70131-67-8
Also equivalent to: OHX-0050
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~42
cSt
Viscosity @ 25°C
~2.0
%
OH Content
~1800
g/mol
MW
0.970
Specific Gravity @ 25°C
Specifications
| Property | Value | Unit |
|---|---|---|
| Viscosity @ 25°C | ~42 | cSt |
| OH Content (KOH titration) | ~2.0 | % |
| Number-avg MW | ~1800 | g/mol |
| Specific Gravity @ 25°C | 0.970 | — |
| Flash Point | >150 | °C |
Applications
RTV-2 base polymerSilicone resin modifierPSA formulationCondensation cure elastomers
Key Features
- —Medium MW for versatile RTV-2 formulation
- —Controlled OH content for predictable cure rate
- —Building block for MQ silicone PSA
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