| RTV - 849
Thermally Conductive Silicone
|
| Description:
RTV-849 is a general purpose condensation cure RTV silicone rubber. RTV-849 has high heat and vibration resistance, as well as exceptional thermal conductivity. Major application areas include potting, high temperature molding, rollers, and print pads.
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Properties: |
|
Part-A |
Part-B |
| Color |
|
Red |
Clear |
| Viscosity, CPS |
|
50,000 |
100 |
| Specific Gravity |
|
2.2 |
.98 |
| Mix Ratio (by weight) |
100:5 |
| Mixed Viscosity, CPS |
40,000 |
| Pot Life @ 72° F, min. |
45-60 |
| Shelf Life @ 72° F, months |
6 |
| Hardness, Durometer Shore A |
73 |
| Tensile Strength, PSI |
590 |
| Tensile Elongation, % |
100 |
| Tear Strength, ppi |
25 |
| Service Temperature Range, °C |
-54 to 260 |
| Coefficient of Expansion, (cm/cm-°C) |
68x10-6 |
| Dielectric Strength, Volts/Mil |
550 |
| Dielectric Constant 100 HZ |
4.7 |
| Dissipation Factor 60 HZ |
0.01 |
| Volume Resistivity, ohm-cm |
1 x 1014 |
Shrinkage, after 3days, % |
.06 |
| Thermal Conductivity, BTU in/ft 2 hr ° F |
9 |
Use Instructions: Pre-mix RTV-849 Base thoroughly. Weigh out the required amount and add the required amount of Catalyst. Mix thoroughly scraping both the bottom and sides of the mixing container. Evacuate the air and then apply. |
Cure Schedule:
24 hours @ room temperature
Pot Life and cure is dependent on temperature & humidity.
Ideal conditions: 68-78°F (20-26°C)
40-60% relative humidity
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