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SES – Black
Modified Silicone Elastomer
For Light Absorption
SES-BLACK is a high purity siloxane formulated with special inert fillers to impart light absorption and eliminate light transmission. SES-BLACK is designed as a protective coating for light sensitive semiconductor devices; other applications requiring light shielding of component arrays and digital displays are appropriate.
Catalyst SES-BLACK will cure at room temperature to a solid silicone elastomer with excellent electrical and physical properties. Elevated temperature curing will optimize electrical properties. The following products are offered:
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SES-BLACK 75 |
VISCOSITY 7,500 CPS |
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SES-BLACK 150 |
VISCOSITY 15,000 CPS |
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SES BLACK 350 |
VISCOSITY 35,000 CPS |
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SES BLACK 700 |
VISCOSITY 70,000 CPS |
Please be sure to specify viscosity of each product when ordering. Customized viscosity available.
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Physical Properties |
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System |
Two-part |
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Color |
Black |
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Solids |
100% |
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Durometer (Shore A) |
40 |
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Catalyst (by weight) |
0.1 to 0.45% |
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Pot Life (0.3% catalyst) |
4 hours |
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Flexibility |
-60 °C to 250 °C |
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Heat Resistance |
Up to 300 °C |
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Specific Gravity |
1.3 |
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Thermal Conductivity |
BTU-ft/ft2-hr-°F |
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ELECTRICAL PROPERTIES |
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Resistivity |
1 x 1015 ohm-cm |
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Dielectric Constant |
3.5 (1mc) |
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Dielectric Strength |
500 volts/mil |
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Dissipation Factor |
5 x 10-3 (1 mc) |
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INSTRUCTIONS:
- Add catalyst 0.3% and mix well: SES – BLACK CATALYST
25 gms. 3 drops
100gms 12drops
- Deaerate (necessary for molding thick sections).
- Cure: 24 hrs. @ 25 °C, or 3 hrs. @ 90 °C, or 1 hr. @ 125 °C
- Post-cure recommended for optimum electrical properties: 1 hr @ 200 °C.
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