| RTV - 842
Flame Retardant Primerless Silicone
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| Description:
RTV-842 is condensation cure RTV silicone rubber. It has the advantage of primerless adhesion to many substrates. RTV 842 is flame retardant, has excellent overall properties, and retains flexibility over a wide range of temperatures.
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Properties: |
|
Part-A |
Part-B |
| Color |
|
White |
Clear |
| Viscosity, CPS |
|
50,000 |
500 |
| Specific Gravity |
|
1.41 |
.98 |
| Mix Ratio (by weight) |
100:3 |
| Mixed Viscosity, CPS |
25,000 |
| Pot Life @ 72° F, min. |
15 |
| Shelf Life @ 72° F, months |
6 |
| Hardness, Durometer Shore A |
50 |
| Tensile Strength, PSI |
600 |
| Tensile Elongation, % |
150 |
| Tear Strength, ppi |
35 |
| Service Temperature Range, °C |
-54 to 204 |
| Coefficient of Expansion, (cm/cm-°C) |
20x10-5 |
| Dielectric Strength, Volts/Mil |
500 |
| Dielectric Constant 100 HZ |
3.7 |
| Dissipation Factor 60 HZ |
0.005 |
| Volume Resistivity, ohm-cm |
1 x 1015 |
Shrinkage, after 3 days, % |
.03 |
| Thermal Conductivity, BTU in/ft 2 hr ° F |
4.5 |
Use Instructions: Pre-mix RTV-842 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. Apply material. |
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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