Insights

Four checks every closure should pass before dispatch

Quality · 10 Jul 2026 · 4 min read

Operator inspecting plastic closures during quality control

Material verification, dimensional accuracy, performance testing and documentation — the sequence we run on every batch.

01 — Material verification

Resin is checked for grade, contamination and consistency before it is processed. A material problem caught at intake costs a batch; the same problem caught at dispatch costs a customer.

02 — Dimensional accuracy

Critical dimensions are measured with precision instruments against the agreed specification, not against a prior batch. Drift is easiest to catch when the reference never moves.

03 — Performance testing

Seal integrity and leak behaviour are checked on assembled samples. A cap that measures correctly can still fail in application if the sealing land is inconsistent.

04 — Compliance documentation

Documentation requirements are confirmed against each programme so the paperwork accompanying a consignment matches what the buyer's own process needs.

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