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Silicones
RTV-846


RTV-846
Lightweight Silicone
RTV-846 is condensation cure flexible syntactic foam RTV silicone rubber. RTV-846 exhibits excellent flow properties and low density. Applications include potting electronics requiring low dielectric constant and low capacitance. RTV 846 has found use in the aircraft and aerospace industries.





Specifications · Use Instructions

Specifications

Color

Clear (Part B)
White (Part A)

Viscosity, cps

25000 (Part A)
100 (Part B)

Specific Gravity

0.70 (Part A)
0.98 (Part B)

Mix Ratio

100:10 (By Weight)

Mixed Viscosity

10000 cps

Shelf Life

12 months @ 72 °F

Durometer Hardness

45 (Shore A)

Tensile Strength

350 psi

Tensile Elongation

100 %

Tear Strength

20 ppi

Service Temperature Range

-54 to 204 ºC

Pot Life

120 minutes @ 72 ° F

Coefficient of Thermal Expansion

2.2 x 104 (cm/cm-°C)

Dielectric Constant

2.5 (100 Hz)

Dissipation Factor

0.002 (60 Hz)

Volume Resistivity

1 x 1015 ohm-cm

Linear Shrinkage

0.06 % After 3 days

Dielectric Strength

500 V/mil

Thermal Conductivity

1 BTU in/ft2 hr °F


Use Instructions
Pre-mix RTV-846 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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