Acoustics - stonewool based panels


Hi guys,
I've set my mind to build some absorbent panels made of stonewool.
The stonewool boards I bought are wrapped with a thin polyethylene flame retardant layer.
Should i leave it on or is safe to take it off?
Would this have an effect on the sound absorption properties of the panels?
behemot
The thin layer shouldn't affect acoustics. IME only a thick, VERY tightly woven fabric would reflect enough sound to notice. Leave it on.
polyethylene flame retardant: its there for your protection please do leave it on ....I would think that in case of a fire you might void your home owners insurance if u have any...