Plastic material selection checklist
Packaging Supply
https://globewhim.com/guides/plastic-material-structure-selection/

[ ] Bag or roll film / intended use:

[ ] Contents / shape / mass / sharp edges / contact conditions:

[ ] Filling method / final seal owner:

[ ] Layers from outside to inside / controlled grades:

[ ] Nominal layer thickness / finished-wall thickness basis:

[ ] Contact face / sealing faces / print location:

[ ] Temperature / duration / storage / reopening:

[ ] Barrier / puncture / abrasion / leakage requirement and evidence:

[ ] Sample ID / method / conditions / outstanding checks:

[ ] Quantity / print / delivery state / destination:

[ ] Substitution controls and approval owner:

Mark unresolved items as “to confirm”. This checklist supports a supplier discussion and does not establish supply, engineering approval or a quotation.