Heat Seal Caps
One-piece foam-backed universal heat induction foil inner seal will adhere to all containers materials (with varying degrees of adhesion.) Recommended for use on plastic jars. FoilSeal™ Composition: Backing: 0.0105" / Foil: 0.001" / Heat Seal: 0.001"
FDA: 21 CFR 177.1210 Closures with sealing gaskets may be safely used on containers intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food.