What tamper-proof sealing solutions work well for automated production lines?

Members have moved away from paper seals due to reliability issues on production lines, and now favour clear PVC capsules that integrate more easily with automation.

**Suppliers and solutions:** - **Rankin** (https://www.rankincork.co.uk/) — supplies recyclable plastic tamper-proof seals and capsules; members note they act as distributor/reseller - **GC Packaging** — mentioned alongside other suppliers for capsule options - **Berlin-based capsule manufacturers** — members source custom-designed PVC capsules from Berlin; these enable full automation at scale but have lengthy lead times

**Approach used in practice:** - Clear PVC capsules are placed over traditional paper seals as an interim measure, improving reliability on the line - Custom-designed capsules (replacing the paper element entirely) offer the best automation performance but require significant lead time planning

**Caveats:** Custom capsule design involves long lead times, so early supplier engagement is essential if you're planning to scale automated bottling.