First Article Inspection for Custom Silicone Molds: What to Measure
First article inspection for custom silicone molds - dimensions, Shore A, flash, cavity volume, and sign-off before MOQ 50 production.

First article inspection (FAI) turns a pretty sample into a contract baseline. RUUIPON runs prototypes in 3-7 days so you can measure before MOQ 50 production. Skip FAI and every reorder argument becomes opinion.
Quick answer: Measure cavity critical dimensions, Shore A, flash height, fill weight, and demold feel; photograph under flat light; sign a one-page approval tied to CAD rev.
FAI Checklist
| Check | Pass idea |
|---|---|
| Cavity L/W/D | Vs CAD + shrink plan |
| Shore A | Agreed band e.g. 30 +/- 3 |
| Flash | Trim-light on parting |
| Fill weight | Vs target grams |
| Demold | No lip tear on 5-10 shots |
What to Measure
Tolerance frame: tolerance and shrinkage. Volume: cavity volume.
Cast Tests
Use production material, not only water. Sample photos buyers should send/receive: sample photos.
Photo Set
Flat light, cavity close-ups, parting line, and full tray. Approval checklist: sample approval.
Sign-Off
One page: CAD rev, Shore A, color, food-grade docs, flash limit, date, name. Revisions after sign-off follow revision process.
Frequently Asked Questions
Who performs FAI?
We measure outgoing; you confirm with your cast process.
Prototype lead time?
3-7 days after CAD approval.
MOQ after approval?
50 per design.
Contact?
[email protected] | WhatsApp +86 135 3006 2969 | Contact.
Ready to order custom silicone molds?
Free quote for OEM/ODM projects. MOQ 20 · Prototype 3-7 days · FDA/LFGB available.
