... 3. Food Grade 4. Ideal For Glass Bottle 5. Passed Certificates:FDA,QS,ISO9001:2008 Glass Induction Cap Seal LinerInduction sealing is a ... seal plastic (LDPE, HDPE, PP, PVC, PET) and glass containers.Types of induction aluminum foil liner: One-piece type: No releasable backing ... mouth)Welded seal (residue left on bottle mouth when peeling). Glass Induction Cap Seal Liner