Dow 3120 RTV Silicone Rubber w/ 4 Catalyst 200:1 Datasheet Dow 3120 RTV Silicone Rubber w/ 4 Catalyst 200:1

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  • Description for Dow 3120 RTV Silicone Rubber w/ 4 Catalyst 200:1

    Low tear strength, high durometer, excellent heat stability.

    *See Terms of Use Below

    Application Type Mold-Making, Pot, Encapsulate
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Aluminum foil, Metal, Paper, Plastic, Polyesters
    Industry Electrical, Printed circuit boards, Transformers, Coils, Electronic
    Manufacturer Dow
    Chemistry Silicone rubber surfaces
    Cure Method Base/Catalyst
    Cure Temperature (°C) 20 to 25
    Cure Time (min) 30
    Viscosity (cPs) 28,000, Pourable
    Color Red
    High Temperature Resistance (°C) 300
    Low Temperature Resistance (°C) -55
    Other Resistance Radiation
    Key Specifications Mil-Spec (United States Military Standard): MIL-S-23586

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
20 to 25°C
Cure Time Test Methods
Cure Time Test Method
30 min
Viscosity Test Methods
Viscosity Test Method Temperature
28,000 cPs ASTM D 1084B 25°C
Pourable
Tensile Strength Test Methods
Tensile Strength Test Method
900 psi ASTM D 412, Die (C)
Dielectric Constant Test Methods
Dielectric Constant Temperature Test Method
4.19 25°C Dielectric constant, 100 Hz, ASTM D 150, Using Dow Corning RTV Catalyst F or S at 10:1 base to catalyst ratio. Wide departures from normal 10:1 ratio may slightly alter physical properties such as hardness and elongation
3.54 25°C Dielectric constant, 100 KHz, ASTM D 150, Using Dow Corning RTV Catalyst F or S at 10:1 base to catalyst ratio. Wide departures from normal 10:1 ratio may slightly alter physical properties such as hardness and elongation
Dielectric Strength Test Methods
Dielectric Strength Test Method
Good Dielectric Strength Test Method
457 V/mil ASTM D 149, Using Dow Corning RTV Catalyst F or S at 10:1 base to catalyst ratio. Wide departures from normal 10:1 ratio may slightly alter physical properties such as hardness and elongation., 1/16” sample
Dissipation Factor Test Methods
Dissipation Factor Temperature Test Method
0.07000 25°C Dissipation factor, 100 Hz, ASTM D 150, Using Dow Corning RTV Catalyst F or S at 10:1 base to catalyst ratio. Wide departures from normal 10:1 ratio may slightly alter physical properties such as hardness and elongation.
0.01700 25°C Dissipation factor, 100 KHz, ASTM D 150, Using Dow Corning RTV Catalyst F or S at 10:1 base to catalyst ratio. Wide departures from normal 10:1 ratio may slightly alter physical properties such as hardness and elongation.
Thermal Conductivity Test Methods
Thermal Conductivity Temperature Test Method
0.31 W/m°K 25 to 100°C ASTM D 2214
Volume Resistivity Test Methods
Volume Resistivity Test Method
2.7e13 (ohms/cm) ASTM D 257, Using Dow Corning RTV Catalyst F or S at 10:1 base to catalyst ratio. Wide departures from normal 10:1 ratio may slightly alter physical properties such as hardness and elongation.
Elongation Test Methods
Elongation Test Method
1 % ASTM D 412
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
60 ASTM D 2240
Specific Gravity Test Methods
Specific Gravity Temperature Test Method
1.450 25°C ASTM D 792A