ShinEtsu KE-3421 Conformal Coating Silicone

SKU
SHI-KE3421
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ShinEtsu KE-3421 is a fast, single component, room-temperature curing conformal coating that will cure to form a durable and flexible elastomer for protecting electronic components. KE-3421 is suitable for application by selective spray coating, mass coating, and flow coating, making it ideal for coating circuit boards.

Product Features

  • UV tracer for easy inspection 
  • Fast cure 
  • Single component 
  • Room-temperature cure 
  • Low odor and non-corrosive 
  • Excellent unprimed adhesion to most substrates

Typical Applications

  • Coating circuit boards and other electronic components
Typical Properties

Type Conformal Coating
Cure Type Condensation
One/Two Component One
Color Light Yellow Translucent
Density @ 23C (g/cm^3) 1.0
Viscosity (cps) 250
Cure Conditions 7 days @ 23C/50% RH
Tack Free Time (min) 5
Share A Hardness 25
Tensile Strength (MPa) 0.7
% Elongation 80
Shear Strength (MPa) (Al/Al) 0.2
Volume Resistivity  1
Dielectric Strength 25
Dielectric Constant 3.1 @ 50Hz
Dielectric Dissipation Factor 1x10^-4 @ 50Hz
Thermal Conductivity (W/m*K) 0.2
Usable Temperature Range (C) -40 to +180
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