About Cap Sealing

Cap Sealing is an independent technical publication focused on electromagnetic induction cap sealing equipment, foil innerseal liner laminates, bottle capping mechanics, and container closure integrity testing (CCIT).

Our engineering guides organize primary manufacturer operating manuals, liner polymer compatibility charts, ASTM and USP leak-testing methods, and FDA tamper-evident packaging regulations into structured comparison tables, line-interface checklists, and diagnostic workflows for packaging engineers and QA teams.

This publication operates independently of any previous registrant of this domain and is not affiliated with equipment manufacturers or material suppliers cited in our reference guides.

How to Use These Guides

Use these engineering guides to structure Factory Acceptance Testing (FAT), specify heat-seal liner layers for HDPE, PP, PET, PVC, or glass containers, and verify inline reject timing. Final sealing windows, cap application torque, and leak-test acceptance thresholds must be qualified on representative filled production containers.

Read our Editorial Standards for details on primary source selection and technical verification.