Polymer Systems
Technology Limited

Advanced Engineering

EPM-2421

Potting and Encapsulating Elastomers

Low Volatility Silicone Elastomer

DESCRIPTION

Two-part, clear silicone system
Offers low modulus and low viscosity
1:1 Mix Ratio (Part A: Part B)

APPLICATION

For applications requiring low volatility and high purity
Designed for protection of electrical components and assemblies against shock, vibration, moisture, dust, chemicals, and other environmental hazards
Ideal for applications in which clarity and low viscosity are important

PROPERTIES
Typical Properties	Average Result
Uncured:
Appearance	Transparent
Viscosity, Part A	3,750 cP (3,750 mPas)
Viscosity, Part B	2,700 cP (2,700 mPas)
Work Time	3 hours
Tack-Free Time	5 hours
Cured: 15 minutes at 15°C (302°F)
Specific Gravity	1.02
Durometer, Type A	50
Tensile Strength	850 psi (5.9 MPa)
Elongation	90%
Lap Shear Strength	250 psi (1.73 MPa)
Volatile Content (1 hour at 275°C)	0.7%
Volume Resistivity	8.5 X 10 exp¹⁴
Dielectric Strength	610 V/mil (24.0 kV/mm)
Dielectric Constant, 100 Hz	2.8
Dielectric Constant, 1 kHz	2.8
Loss Tangent, 100 Hz	0.0003
Loss Tangent, 1 kHz	0.0004
Coefficient of Linear Expansion (-150°C to -170°C)	87µm/(m°C)
Coefficient of Linear Expansion (-70°C to 200°C)	297µm/(m°C)
Glass Transition Temperature (Tg)	-116°C (-176.8°F)
Ionic Content, Na	<6 ppm
Ionic Content, K	<3 ppm
Ionic Content, Cl	<6 ppm

Properties tested on a lot-to-lot basis. Do not use the properties shown in this technical profile as a basis for preparing specifications. Please contact NuSil Technology for assistance and recommendations in establishing particular specifications.

Packaging

50 mL Side-by-Side Kit
50 Gram Kit
100 Gram Kit
400 mL Side-by-Side Kit
500 Gram Kit

Warranty

12 Months