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Independent sourcing partner for shrink wrap film factory quotes. We do not manufacture film or hold retail stock.
Specification bench measuring custom shrink wrap film thickness and sleeve lay-flat

custom shrink wrap

Spec Review for custom shrink wrap: lock the open choices that still block a comparable quote, then write what must be verified before an alternative construction is accepted. This page is a packing-specification desk, not a carbon, forest or circular-economy statement.

A quote is comparable only when resin, thickness in μm or mil, shrink ratio, quantity unit and destination sit on one revision. Substituting a PVC bag for a POF centerfold is a new brief—not a courtesy swap.

Shrink Wrap Film Sourcing uses this page to list buyer-side gaps. We do not claim a factory has already passed a site audit, and we do not treat a directory SKU string as proof of inventory.

Open choices that still block a comparable quote

Resin and film size

Write POF, PVC or PE, plus film thickness in μm or mil and roll width. If only inches are known, show the conversion on the brief so two factories are not converting differently. Fold type (centerfold, singlewound or bag) belongs here rather than in a later email.

Shrink, print and die line

Named shrink ratio, seal initiation temperature, flexographic printing color count, unprinted state, and die line status are separate decoration states. Plate or setup charges must not be mixed into the film kilogram price.

Quantity, pack-out and files

Rolls, kilograms or pieces by specification. Pallet pattern, core size and whether a food-contact or migration testing file is required for the intended fill. Post-consumer recycled content, if requested, is a lot file question—not a footer claim.

Brief completeness before factories are asked to price

These bars are a buyer checklist, not production output and not a carbon dashboard.

Resin, thickness and fold type namedRequired
Shrink ratio, print state and die lineRequired
Quantity unit and destination ZIPRequired
Document list for the intended fillIf food or sleeve ink applies
Mark fields you already have

What to verify before accepting an alternative construction

  • Resin family check mark

    Resin family

    A factory that offers a nearby resin must state whether shrink ratio and seal initiation temperature still match the tunnel. Do not accept “similar film” language without the resin name.

  • Thickness check mark

    Thickness lot

    A 19 μm web substituted for a 15 μm web can change shrink force and yield. Ask for a retain from the quoted lot before treating the rolls as equivalent.

  • Print process check mark

    Print process

    Digital print substituted for flexographic printing changes plate cost, spot-color control and often MOQ. Ask which process was priced and keep setup charges visible.

  • Document transfer check mark

    Documents do not travel automatically

    A food-contact or migration testing file for one lot does not cover a substitute resin or ink. Request the file for the quoted alternative before treating it as equivalent.

POF versus PVC, and mono-material versus barrier bags

Buyers sometimes treat recycled or post-consumer recycled content as a free substitution. A recycled PE layer can support a reporting goal and still fail a shrink ratio or food-contact check that the original POF web passed. The opposite is also true: a virgin POF sheet does not automatically carry a chlorine-free claim that a buyer can reprint. PVC can still be the right tunnel match on older equipment; it is not automatically disqualified, and it is not automatically cheaper once freight and disposal rules are written. Ask for the file that belongs to the quoted lot. Do not copy a mill brochure into this site's footer.

Specification cells that must stay on one revision before factories price custom shrink wrap
Field Unit Buyer-stated example range
Film thickness μm or mil 12-25 μm POF; 15-50 μm PVC; 25-80 μm PE bags
Shrink ratio % MD / TD 40-70% as named by the tunnel, not a default 50%
Seal initiation temperature °C About 90-120 °C for many POF webs; PE bags often sit higher
Roll geometry mm Width, 76 mm core, and a named roll OD
Print and die line colors / status 1-8 color flexographic printing or gravure printing; approved or pending die line
Barrier files OTR / WVTR Oxygen transmission rate and water vapor transmission rate only when the fill requires them

If the open list is still long, keep the page pending in your own notes rather than forcing one master keyword onto every cell. Then pick an inquiry option or send the locked revision.

Files to request from a named factory

This row is a request list, not a display of certificates held by Shrink Wrap Film Sourcing.

  • Lot-specific food-contact statement when the film will touch food
  • Resin and thickness confirmation for the quoted web
  • Flexographic printing plate or digital-print process note for the artwork
  • Recycled-content file only if PCR language is part of the purchase

Request a specification review with the RFQ

List the open cells in the requirement field. No existing quotation is required. This CTA is a spec-review path, not a sustainability pledge.

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