I use stretch wrap by the case...even sell it on my site. I could never stand having the plastic laying on top loosely and sticking to my gloves all the time.
I wrap my form with the stretch wrap and it stays put. Never have any glue infiltrate it except maybe around the bolt holes occasionally.
Then after taping my glue up in to place, I wrap the form and glue up again with stretch wrap, put the hose and top on and I'm done.
Stretch wrap is the stuff that comes tightly rolled on a paper tube with handle. It is widely used in packaging.
Shrink wrap requires heat to pull down tight...different product all together.
bigjim