Polymer Systems
Technology Limited

Advanced Engineering



Potting and Encapsulating Elastomers


  • Two part, Black, 1:1 Mix ratio (A:B)
  • Pourable and self-leveling
  • Cures at room temperature
  • Tested per UL-94 and passed V-0
  • Thermally stable, flowable material that cures at room temperature
  • Low viscosity allows the potting of complex geometries without the entrapment of air
  • Quick set-up and flexible cure schedule
  • Applications include: potting for connectors, sensors, relays, power devices and other electronic components requiring protection from vibration and generally harsh environmental conditions
Typical PropertiesAverage Result
Appearance, Part ABlack
Appearance, Part BOff White
Appearance, MixedBlack
Viscosity, Part A 2,700 cP
Viscosity, Part B1,500 cP
Work Time1 hour minimum
Cured: 60 minutes at 150°C (302°F)
Durometer, Type A50
Tensile Strength525 psi (3.5 MPa)
Elongation130 %
Coefficient of Linear Expansion (-150°C to -70°C)*142 ppm/°C (142 µm/m°C)
Coefficient of Linear Expansion (-40°C to 250°C)*247 ppm/°C (247 µm/m°C)
Thermal Conductivity0.40 W/mK
Volume Resistivity*4.3 X 1013 ohm cm
Dielectric Constant, 100 Hz*3.3
Dielectric Constant, 100 kHz*2.85
Dissipation Factor, 100 Hz*0.002
Dissipation Factor, 100 kHz*0.001
Dielectric Strength*580 V/ml (22.6 kV/mm)
Tested per UL-94 (4.5 mm nominal thickness) *Passed V-0
Cured: 24 hours minimum at ambient temperature and humidity
Durometer, Type A50
Recommended cure time guidelines at various temperatures  
T90 at 80°C 3 minutes
T90 at 100°C < 1 minutes

*These properties NOT tested on a lot-to-lot basis. Please contact NuSil Technology for assistance and recommendations in establishing particular specifications.

Recommended Primers CF2-135 or SP-120

Note: Some bonding applications may require the use of a primer.
CF2-135 is recommended for most metallic substrates, some plastics and when cure inhibition is observed on substrate.
In general, SP-120 is recommended for use with 100% Fluorosilicones.


50 ml SxS Kit (0.054 kg)
200 ml SxS Kit (0.21 kg)
2 Pint Kit (0.91 kg)
2 Gallon Kit (7.28 kg)
10 Gallon Kit (36.4 kg)


6 Months

Product Profile - Full Details Product Profile
Safety Data Sheet Material Safety Data Sheet
Example packaging
Example packaging


Medical Silicones
Biomaterials - Medical Silicones for Healthcare

Advanced Technologies

Advanced Technologies Industrial & Engineering Silicones
Space - Aviation Grade Industrial & Engineering Silicones


Food Medical Industrial Grade Silicone Tubing
Food, Medical & Industrial Quality Silicone Tubing


Silicone Mixing Dispensing Degassing Equipment
Mixing Dispensing & Degassing Equipment for Silicone