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Aavid Thermalloy Theragrip is a double sided tape for ceramic or metal heatsink packages. Theragrip provides both good thermal performance and excellent electrical isolation.
This is the first Sparkfun product that did not work for me. It did not have much sticky. Maybe its too old?
I use screws and heatsink grease instead. It was a pain.
I used four squares of this to stick a 4"x4" square of aluminum flashing to my Makerbot’s heated build platform.
Works marvellously (surface temperature greater than 90C) and I don’t have to worry about the extruder nozzle bumping into bolt heads anymore!
This stuff works great. I was able to cut one of the squares into 4 pieces and use them for some MosFETs that I mounted on a large heat sink for a SMPS.
The only downside is that if you burn something up and need to replace it, things get really messy.
Alright, so how much better is this than double sided Scotch tape? $4 for that tiny square makes me cringe.
Regular Scotch tape: ~1.5psi adhesion
Thermoalloy: ~50psi adhesion
Scotch tape: no data found as I don’t believe it is designed for heat conductive situations
Thermoalloy: Thermal Impedance of 0.58 ?C/W
I assume you can’t use heatsink compound with this. I guess it’s good if you need electrical isolation that badly… but for normal use, I would just use the good old bolt technique.
This is good for when you can’t bolt things together because you need isolation. Or when mounting is a bit more of a pain, or when you are using a non-standard heatsink (such as a metal plate, etc).
Or adding a tiny heat sink to a surface mount transistor when the manufacturer didn’t provide enough ground plane for proper heat dissipation.
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