| RTV - 812
General Purpose Silicone
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| Description:
RTV-812 is a general purpose condensation cure RTV silicone rubber. RTV-812 has low shrinkage and reproduces detail well. Major application uses include mold making, potting, and encapsulation. It has excellent electrical properties, low viscosity, and has high resilience. It contains no by-products, and is non-allergenic.
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Properties: |
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| Color |
Pink |
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| Viscosity, CPS |
15,000 |
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| Specific Gravity |
1.32 |
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| Mix Ratio (% by weight) |
100 : 0.1-0.5 |
| Mixed Viscosity, CPS |
varies with catalyst amount |
| Pot Life @ 72° F, min. |
15-120 |
| Shelf Life @ 72° F, months |
6 |
| Hardness, Durometer Shore A |
47 |
| Tensile Strength, PSI |
450 |
| Tensile Elongation, % |
175 |
| Tear Strength, ppi |
25 |
| Service Temperature Range, °C |
-54 to 204 |
| Coefficient of Expansion, (cm/cm-°C) |
21x10-5 |
| Dielectric Strength, Volts/Mil |
500 |
| Dielectric Constant 100 HZ |
3.4 |
| Dissipation Factor 60 HZ |
0.002 |
| Volume Resistivity, ohm-cm |
1 x 1015 |
Shrinkage, after 3days, % |
0.3 |
| Thermal Conductivity, BTU in/ft 2 hr ° F |
2.2 |
Use Instructions: Pre-mix RTV-812 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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