About |
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GI-300 series RTV silicone rubbers are two-component, tin-catalyzed systems that cure at room temperature. They are versatile products that are excellent for electrical potting and encapsulation. They can also be used for prototype or production molds to cast polyester, polyurethane or epoxy parts where flexing is not required. They are low viscosity compounds with a variety of hardnesses. The GI-300 series rubbers are not sensitive to inhibition, meaning they will cure at room temperature over virtually any surface. The speed at which the rubbers harden can be accelerated with special activators. The GI-300 series rubbers are especially useful in those applications where outstanding heat resistance and chemical resistance are required.&& |
Product Description | |
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Generic | 硅橡胶,RTV-2 |
Material Status | Commercial: Active |
Features | Low Viscosity,Low contractility,High Heat Resistance,Solvent resistance |
Availabilitys | North America |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Density | 1.49 | g/cm³ | |
Shrinkage rate | |||
Cured | 0.15 | % |
Thermosetting mixed viscosity | Nominal value | Unit | Test method |
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Uncured Properties | Nominal value | Unit | Test method |
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colour | Beige | ||
viscosity | 65 to 75 | Pa·s | |
Curing time | 16 to 18 | hr | |
storage stability | 60 to 120 | min |
Cured Properties | Nominal value | Unit | Test method |
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Shore hardness | |||
Shaw’s A | 54 to 64 | ||
Shaw’s A | 60 to 68 | ||
tensile strength | 4.48 | MPa | ASTM D412 |
Tensile strain | |||
fracture | 100 | % | ASTM D412 |
tear strength | 3.50 | kN/m | ASTM D624 |
Arc resistance | 125 | sec | |
Electrical strength | 23 | kV/mm | |
Relative permittivity | |||
100 Hz | 3.70 | ||
Volume resistivity | 1.0E+13 | ohms·cm | |
Dissipation factor | |||
100 Hz | 0.030 | ||
Coverage(Cured) | 0.672 | cm³/g |
THERMAL | Nominal value | Unit | Test method |
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Linear coefficient of thermal expansion | |||
MD | 1.0E-3 | 1/℃ | |
Thermal conductivity coefficient | 0.29 | W/m/K | |
Operating temperature | |||
Cured | -51 to 218 | ℃ | |
Thermosetting components | |||
resin | 按重量计算的混合比: 10 按容量计算的混合比: 100 | ||
Hardening method | 按容量计算的混合比: 15 按重量计算的混合比: 1.0 | ||
Storage period | 26 | wk |
Notes |
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