Important Characteristics of Gap Pad

Q: Why are “wet out”, “compliance” or “conformability”
characteristics of Gap Pad important?
A: The better a gap pad lays smooth "wets out" or conforms to a
rough or stepped surface, giving less interfacial resistance caused
by air voids and air gaps. Gap Pads are conformable or compliant
as they adhere very well to the surface. The gap pads can act
similar to a "suction cup" on the surface. This leads to a lower
overall thermal resistance of the pad between the two interfaces.