Mine has been on for years with no covering and it hasn't stuck to anything else. I'd avoid PVC insulating tape for anything, including insulating - it's revolting stuff.
I had mine self-amalgamate themselves to the rubber inserts one finds on Hope Vision One clamps.
It stopped being an issue when I changed from using Hope clamps, to using Exposure ones for attaching the lights.
I have no fondness for PVC. Not for insulation nor apparel.
Mine has been on for years with no covering and it hasn't stuck to anything else. I'd avoid PVC insulating tape for anything, including insulating - it's revolting stuff.