Aluminum foil:7 Kraft:60gsm Adhesion:polyethylene 2-way or 3-way fiberglass Specification Width:1.0m,1.2m,1.25m,etc Length:60m,100m,200m,300m,500m,etc Mainly used in insulation panels cotton,cotton blankets,for metal structure workshop roof of adiabatic effect has good effect.Can also be used for drugs,powder shielaing,anti-ultraviolet light,moisture-proof gas barrier packaging,and so on.