Polymer Systems
Technology Limited

Advanced Engineering

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Commercial Aviation:
Optoelectronics:
Electronics:

R-2939

Adhesives/Sealants,Thermally Conductive

Low Viscosity Thermally Conductive Silicone

DESCRIPTION
  • Two-part, white, thermally conductive, pourable silicone
  • Cure may be heat accelerated
  • 15:1 Mix Ratio (Part A:Part B)
APPLICATION
  • To provide heat transfer between electrical/electronic components and their heat sinks
  • Use to adhere openings in modules and housings where grooves or other configurations require a limited flow material with moderate thermal conductivity
PROPERTIES
Typical PropertiesAverage Result
Uncured:
Appearance*White
Viscosity, Part A*70,000 cP (70,000 mPas)
Work Time*4 hours
Cured: 30 minutes at 150°C (302°F)
Specific Gravity*1.34
Durometer, Type A*70
Tensile Strength*300 psi (2.1 MPa)
Elongation*70%
Tear Strength*45 ppi (7.9 kN/m)
Thermal Conductivity*0.75 W/(mK)(18 x 10-4 cal/(cm sec°C))
Dielectric Strength810 Volts/mil (31.9 kV/mm)

*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.

Recommended Primer CF1-135

Note: Some bonding applications may require the use of a primer.

Packaging

100 Gram Kit
250 Gram Kit
500 Gram Kit
1 Pint Kit (503 g)

Warranty

12 Months

Product Profile - Full Details Product Profile
Material Safety Data Sheet EU EN Material Safety Data Sheet

Biomaterials

Medical Silicones
Biomaterials - Medical Silicones for Healthcare

Advanced Technologies

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

Tubing

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

Equipment

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