Thermal Interface Materials (TIM)

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TIM: Silicone-Free Thermal Interface Material
TIM: With 794TC Auger Valves on E Series Dispensing Thermal Compound Pattern on PCB -Components
E Series: Dispensing Gray Thermal Compound Pattern with 794TC

Thermal Interface Materials (TIM)

Non-silicone thermal compounds are widely used in electronic and electromechanical applications because they offer resistance to thermal cycling degradation. Our thermal compounds are formulated to provide excellent heat transfer, long shelf-life stability, and are RoHS and REACH compliant (lead-free).

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Overview


Non-silicone thermal compounds are used in a wide range of electronic and electromechanical applications because they are resistant to thermal cycling degradation. Thermal compounds are formulated to provide excellent heat transfer. They are non-hazardous and are RoHS and REACH compliant (lead-free). Their long shelf-life stability ensures that they will not dry, harden, or melt in normal use.

 

Reference our Thermal Compound Selection Guide below for easy comparison of key characteristics of our most popular formulas. Individual formula data sheets highlight features and benefits along with technical details.

  SPECIFICATIONS
Formula 52022 52050 52054 52055* 52160 53053 53054
Specific Gravity at 25° C 2.7 2.6 3.0 2.8 2.6 2.8 3.0
Bleed: 24 Hrs., % Weight 0.1 0.01 0.01 0.01 0.3 0.5 0.01
Evaporation: 150C, 24 Hrs., % Weight 0.15 0.6 <2.0 1.0 0.5 0.5 <2.0
Thermal Conductivity: W/m-K 0.92 3.8 1.3 1.3 2 3.5 1.6
Dielectric Strength: V/mil 305 351 265 265 n/a 318 265
Dielectric Constant: 25° C, 1000Hz 4.5 4.92 5.02 5.02 n/a 5 5.02
Dissipation Factor: 25° C, 1000Hz 0.0029 0.0032 0.0022 0.0022 n/a 0.0027 0.0022
Volume Resistivity: Ohm-cm 1.65x10^14 1.0x10^13 2.0x10^15 2.0x10^15 over current 2.15x10^15 2.0x10^15
Operating Temperature: ° C -40 to 200 -40 to 200 -40 to 180 0 to 180 -40 to 200 -40 to 200 -40 to 180
Flow Rate: g/min 4 to 7 1 to 3 8 to 9 4.5 to 6.5 3 to 8 7 to 9 5 to 6
Minimum Bond Line: mm 0.0381 0.0508 0.0127 0.0127 0.0254 0.1270 0.0127
Viscosity: 25° C kCps 460 350 470 620 230 1000 510
Viscosity: 50° C kCps 400 60 410 550 170 400 470
Appearance Smooth, off-white paste Dark gray paste Smooth white paste Smooth white paste Smooth, gray paste Off white paste Smooth white paste
Shelf Life 1 year 1 year 1 year 1 year 1 year 1 year 1 year

*Water cleanable for easy clean up

Mechanics of Heat Transfer

Choosing the best thermal compound requires some understanding of the mechanics of heat transfer and how the thickness of the thermal compound layer, the bond line thickness, influences product choice.


GV Series: Dispensing TC onto Conveyor Close-up Image

Bond Line Thickness


Bond line can be divided into three categories:

  • Low, at less than 75 μm
  • Medium, from 75 to 250 μm
  • High, at greater than 250 μm

.

Conductivity and Resistance


There are two critical thermal performance characteristics: Thermal Conductivity (TC) and Thermal Resistance (TR). In low bond line applications, thermal resistance dominates performance. In high bond line applications, thermal conductivity dominates performance. In medium bond line there is a blended influence.
TIM: Dispensing on PCB
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Resources & Downloads


  • Data Sheets & Guides
  • Other Resources
  • Videos

High-Performance Thermal Interface Material Overview


Our thermal compounds are formulated to provide excellent heat transfer, long shelf life stability, and are RoHS and REACH compliant (lead-free).

View more videos

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