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Honeywell HLT 3500 is a two-part, dispensable thermally conductive gel, which offers long-term reliability and superior softness. It exhibits low contact resistance, minimal oil bleeding at high temperatures and has very low thermal impedance under pressure.
A balanced solution for Vertical mounting that requires high TC before we go into the upper end of the product line. The enhanced bonding force between the polymer base and the filler largely improves the thermally conductive gel oil separation issue in storage. Prior to curing, the material maintains good thixotropic characteristics and low viscosity to be easily dispensed.
Honeywell HLT 3500 can be cured in short time after two-component mixing at room temperature. The high compressibility minimizes thermal resistance at interfaces, while maintaining excellent performance during reliability testing. It has high dispense rate, above 100 g/min and low outgassing, below 0.5%
The product can be cured at either 12 hours at Room temperature or 30minutes at 100°C. Of course those are just indications and you can experiment with curing for your application needs.
HLT 3500 exhibits great Thermal impedance the more pressure you apply.
Additionally the oil bleeding is minimal. The test has been conducted by pasting a 25.4 x 25.4 x 1.5mm sample on A4 paper, either at Room temperature or at 125oC