Packaging Cap Prototype to Production Mold
A closure project needed bridge validation before committing to a multi-cavity production mold.
Buyer situation
Cap CAD, bottle-neck fit notes, sealing requirement and a pilot quantity target before the production cavity count was fixed.
Main risk
A closure project needed bridge validation before committing to a multi-cavity production mold.
Engineering decision
A bridge mold path kept sample learning separate from the final multi-cavity investment, reducing the chance of repeating early fit issues across production tooling.
Sample gate
Samples were judged by thread or snap fit, sealing feel, ejection marks, material behavior and whether the part justified a production mold route.
Evidence
Prototype mold samples validated fit and sealing before the production mold route.
Buyer takeaway
For closures, validation value can matter more than first-shot unit cost until fit, sealing and user feel are proven.
Evidence matrix
| Evidence area | What the buyer should see |
|---|---|
| Starting files | CAD, drawing, sample photos or supplier issue notes that explain why the project needed review. |
| Mold decision | Steel, cavity, gate, parting-line, slider, insert or export handoff assumptions. |
| Sample gate | T1 sample photos, dimensions, appearance notes, assembly fit and issue list. |
| Release proof | Dimensional or FAI record, material confirmation, correction log and acceptance status. |