EPUSIL RTV 113
General Purpose
RTV Silicone
Sealant/Encapsulant
DESCRIPTION
Epusil RTV 113 is a
multi-purpose casting material for use as an
encapsulant, potting compound or sealant. Epusil RTV
113 has been used successfully in protecting
electronic components, assemblies and delicate
systems. Epusil RTV 113 exhibits excellent
electrical properties, low temperature flexibility
and high temperature stability. A variety of
catalysts are available for different cure
situations.
PROPERTIES – UNCURED
Color,
visual............................……....
Red
Viscosity ,
ASTM-D-1084 ……….…..
7000-11,000 c.p.s
Specific Gravity
…………..........……. 1.45 +/-
0.02
Mix Ratio (RTV Cat
12)............……..
0.1-0.5 by weight
Mix
Viscosity…………………….…… 7000 -
9000 c.p.s
Pot Life @ 250
C …………………….. 1 to 4 hours
Shelf Life @ 250 C.
…………………… 6 months min.
PROPERTIES – CURED
Physical
Hardness,
ASTM-D-2240 (Durometer)………..
Shore A 58 - 62
Tensile Strength, ASTM
D-412……………….. 750 p.s.i.
Tensile Elongation, ASTM
D-412…………….. 140%
Tear Strength, ASTM-D-624 (Die B
1b./in.)…. 40
Coefficient of
Thermal Expansion (cm/cm/0C).
21 *10-5
Service
Temperature…………………………… -550C
to 2600C
Shrinkage
……………………………………… 0.2% to 0.5%
Electrical
Dielectric Strength,
ASTM D-149 (volts/mil)…
500
Dielectric Constant,
ASTM -D- 150 (60 Hz)…. 3.8
Dissipation Factor,
ASTM -D- 150 (60 Hz)…. 0.02
Volume Resistivity,
ASTM -D- 257 (ohm-cm).
1 * 1015
Thermal Conductivity
(W/m0C)………………
0.29
MIXING INSTRUCTION
1.
Weigh out required amount of Epusil RTV 113.
2.
Measure the required amount of catalyst.
3.
Mix thoroughly, scraping both the bottom and sides
of the mixing container.
4.
Evacuate mixture @ 29 in Hg for 3-4 minutes to
insure a void-free casting.
5.
Pour into unit or cavity
CURE SCHDULE
Overnight at room temperature (12-16 hours) @ 25
0C. Faster tack-free surfaces achieved
using varied catalysts.
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