Insulating the board should help - the danger comes from the friction surfaces which get strongly charged up and can then deposit their charge onto nearby conductors via corona-discharge. On insulators the charge stays very close to the surface and hops on and off the surface. It shouldn't travel through insulating film unless its very thin. Beware of the insulating film itself building up a charge.
Most strategies to control static use slightly conductive materials or coatings which prevent charge build-up. That or an increase in humidity.