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Silicones Inc P-125

Silicones P-125 is a translucent, high tear strength, platinum-catalyzed, RTV-2 silicone rubber, which was designed for casting parts where visual inspection is required. It is easy to mix and de-air, and will cure with virtually no shrinkage. The speed at which the rubber hardens can be dramatically accelerated with heat or with Pt Accelerator at room temperature. Addition-cure two-component silicone rubbers exhibit excellent chemical and heat resistance, but may show some inhibition sensitivity.

Polymer Name: Silicone Elastomer

End Uses: Prototyping

Features: Good Mechanical Properties, Good Tear Strength, Low Shrinkage, Platinum Catalyzed, Room Temperature Vulcanizing, Translucent

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Identification & Functionality

Chemical Family
Polymer Name
Technologies

Features & Benefits

Features
  • P-125 is extremely useful for prototype applications where superior mechanical properties are required.

Applications & Uses

Markets
Cure Method
Plastics & Elastomers End Uses

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Activator1000-2000--
Volume100 / 10.9--
Coverage25.6in^3 / lb-
Cure Time (Hours)16 - 24--
Dielectric Constant (100 HZ)2.9--
Dielectric Strength500.0volts/mil-
Dissipation Factor (100 HZ)0.003--
Elongation250 ± 50%ASTM D412
Mixing Ratio (B/A)100 / 10 --
Service Temperature-60 - 600°F-
Hardness (±4)40.0Shore A-
Shrinkagenil--
Specific Gravity1.09--
Tear Resistance90 ± 15 ppiASTM D624
Tensile Strength700 ± 50psiASTM D412
Viscosity90000 - 110000cps-
Viscosity160000 - 180000cps-
Volume Resistivity1 x 1015ohms/cm-
Working Time (Hours)1 - 2--

Storage & Handling

Shelf Life
6 months