Powder Proof Zipper that allow any powder stuck in the track to simply drop back down into the bag before and during the process of sealing the bag shut. This allows for a strong and secure seal even when using materials that would otherwise clog the zipper and prevent a proper seal.
|Material : Low Density Polyethylene (LDPE)|
|Opening Force : 20 N/m av.+ 10%mm and|
|Closing Force : 55 N/m av.+ 10%mm.|