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RTV-811

RTV-811

General Purpose Silicone

 

Description:
RTV-811 is a general purpose condensation cure RTV silicone rubber. RTV-811 has low shrinkage and reproduces detail well. Major application areas include flexible molding, rollers, and print pads. It is low viscosity and has high resilience. It contains no by-products, and is non-allergenic.

 

Properties:

Part-A

Part-B

Color

 

White

Clear

Viscosity, CPS

 

18,000

100

Specific Gravity

 

1.20

.96

Mix Ratio (by weight)

100:10

Mixed Viscosity, CPS

10,000

Pot Life @ 72° F, min.

45

Shelf Life @ 72° F, months

6

Hardness, Durometer Shore A

45

Tensile Strength, PSI

350

Tensile Elongation,  %

150

Tear Strength, ppi

20

Service Temperature Range, °C

-54 to 200

Coefficient of Expansion, (cm/cm-°C)

25x10-5 

Dielectric Strength, Volts/Mil

500

Dielectric Constant 100 HZ

3.4

Dissipation Factor 60 HZ

0.002

Volume Resistivity, ohm-cm

9 x 1014

Shrinkage after 3 days (%)

.06

Thermal Conductivity, BTU in/ft 2 hr ° F

2

 

Use Instructions:

Pre-mix RTV-811 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