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


The warranty period provided by Polymer systems Technology ltd (hereinafter “PST”) is from the date of shipment when stored below 40°C in original unopened containers. Unless PST provides a specific written warranty of fitness for a particular use, PST’s sole warranty is that the product will meet PST’s then current specification. PST specifically disclaims all other expressed or implied warranties, including, but not limited to, warranties of merchantability and fitness for use. The exclusive remedy and PST’s sole liability for Packaging Warranty 50 mL Side-by-Side Kit 200 mL Side-by-Side Kit 400 ml Side-by-Side Kit 2 Pint Kit (910 g) 2 Gallon Kit (7.28 kg) 10 Gallon Kit (36.4 kg), Inc. All rights reserved. Trademarks are owned by PST or its affiliates unless otherwise noted. breach of warranty is limited to refund of purchase price or replacement of any product shown to be other than as warranted. PST expressly disclaims any liability for incidental or consequential damages.



PST believes, to the best of its knowledge, that the information and data contained herein are accurate and reliable. The user is responsible to determine the material’s suitability and safety of use. NuSil Technology cannot know each application’s specific requirements and hereby notifies the user that it has not tested or determined this material’s suitability or safety for use in any application. The user is responsible to adequately test and determine the safety and suitability for their application and NuSil Technology makes no warranty concerning fitness for any use or purpose. PST has completed no testing to establish safety of use in any medical application. PST has tested this material only to determine if the product meets the applicable specifications. (Please contact PST for assistance and recommendations when establishing specifications.) When considering the use of PST products in a particular application, review the latest Material Safety Data Sheet and contact PST with any questions about product safety information. Do not use any chemical in a food, drug, cosmetic, or medical application or process until having determined the safety and legality of the use. The user is responsible to meet the requirements of the U.S. Food and Drug Administration (FDA) and any other regulatory agencies. Before handling any other materials mentioned in the text, the user is advised to obtain available product safety information and take the necessary steps to ensure safety of use.



PST disclaims any expressed or implied warranty against the infringement of any domestic or international patent/intellectual property right. PST does not warrant the use or sale of the products described herein will not infringe the claims of any domestic or international patent/intellectual property right covering the product itself, its use in combination with other products, or its use in the operation of any process.


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