Although somewhat thermokinetic, plasma comes in three basic forms: ionic, kinetic, and fusion.
The fusion version burns at such high temperatures, almost nothing can withstand it. IMHO, nothing has a bonus versus fusion plasma. IIRC, the plasma repeater rifle uses fusion to create the plasma before releasing the bolt. Thus, nothing would have a bonus versus that kind of plasma. In fact, most substances would actually have a penalty. Besides, if you think about it, the minimum temperature for fusion plasma is 2000K (1727C, 3140F) as this is the minimum temperature for an M class star.
Ionic plasma, such as that in a plasma globe or neon lights, is not very hot. Thus, it won't cause much harm.
Kinetic plasma, such as that generated during atmospheric re-entry (shuttle and meteors), is also very hot. However, it would take so much kinetic energy to produce it, that you are better off just using the kinetic weapon, such as a bullet, than to try and generate kinetic plasma.
I know the above is not very scientific from a physics point of view, but it is how I have categorized plasma.
rmfr
P.S. - To answer your question. Fusion plasma = no. Ionic Plasma = yes. Kinetic plasma = no.
EDIT: see P.S.