UNI-FOAM SPECIALTY LINERS PS-F1 - Selig - #1

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Uni-FoamTM PS-F1 Product Description PS-F1 innerseal is a polystyrene foam/aluminum foil innerseal coated on one side with a torque-activated adhesive. This product exhibits a minimum of surface tack, which minimizes roll blocking and facilitates punching and insertion of the innerseal disc into bottle caps. When used with either metal or plastic caps, and properly torqued, PS-F1 provides excellent adhesion to the tops of glass and plastic containers. PS-F1 is simple to use and, provides barrier properties, to moisture, vapor, oxygen, and flavours if properly sealed to the bottle. Typical Applications PS-F1 innerseal has been designed primarily for packaging dry food, spices, vitamins, powdered laxatives, and over-the-counter drug products not requiring the innerseal to be the primary form of tamper evidence. Seal Composition Nominal Thickness Metric Standard Polystyrene Foam 0.508 mm 0.020" Aluminum Foil 0.025 mm 0.001" Polyester Film 0.013 mm 0.0005" Adhesive Layer 0.051 mm 0.002" Composition Special Notation: When testing for seal integrity, allow torqued cap to remain on container for at least 1 hour at room temperature before removal. Typical Physical Properties: MVTR <0.01 g/100 in²/24 h ASTM F-1249-89 Oxygen Permeability <0.01cc/100 in²/24 h ASTM D-3985 Color of facing – aluminum Regulatory Status: All components of PS-F1 are regulated by the Food and Drug Administration as indirect food additives under appropriate paragraphs of the Code of Federal Regulations, Title 21. PS-F1 innerseal is regulated under 21 CFR 177.1210, "Closures With Sealing Gaskets for Food Containers", for use with dry food solids only. Access to the Drug Master File and a letter outlining specific regulatory status is available on request. NOTE: FDA Compliance Policy Guide; No. 7132a.1; Chapter 32a, concerning Tamper Resistant Packaging Requirements for Certain Over-the-Counter (OTC) Human Drug Products, has been revised to state that "Polystyrene foam container mouth seals applied with pressure sensitive adhesive are no longer considered effective tamper resistant features." PS-F1 file:///C|/Documents and Settings/Admin/My Documents/JAMES/UNIPAC/Unipac_May_2005/English71.html (1 of 2) [5/8/2005 11:48:08 AM]