Quote:

concept of a heatsink is to physically conduct the heat away from the component where the air can cool it.

Mounting it on standoffs allow air to circulate around it but without the airflow (ie in traffic) it wont cool as well.

ive seen melted potting material on heatsinks before but not always. I wonder why some do it and some dont. Some have that yellow gel potting that melts easier than that dark brown rubbery potting.



Right. And that's exactly why I burned ECU(s) on my old Mirada (fender apron mounted).