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Presto Products: Contaminant-resistant zipper

The newest Fresh-Lock® zipper from Presto Products Co. (Appleton, WI) is the Style 140 contaminant-resistant zipper to help packaging of granular or powdery products.

Presto Products Company
Jan 31, 1999
Pw 21026 Thenew Fre 21

The zipper has male and female closures that channel particles outward and away from the zipper track. The zipper is a two-layer, coextruded LDPE with an EVA sealant and can be applied to a wide variety of packaging films at relatively low temperatures.

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Presto Products Company
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