The poly-packaging blog.
Operator-grade writing on fulfillment math, compliance changes, manufacturing trade-offs and nearshore supply — for brands that ship enough poly that the spec matters.
Your poly mailer is one inch too big
Every brand picks a mailer size on launch day and never revisits it. A year later, that one extra inch is quietly costing five or six figures a year in carrier surcharges. Here's the audit.
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Poly packaging's 2026 problem isn't price. It's paperwork.
A 125% tariff on Chinese plastic bags, the July 1 USMCA deadline, Mexico's own counter-tariffs on plastics, climbing resin prices, and seven-state EPR rollout — all landing in the same 90-day window. Here's what to ask your supplier before July.
Why your autobagger keeps jamming. (It's probably not the bagger.)
When an autobagger starts misfeeding three times an hour, the first call is to the bagger manufacturer. The second is to maintenance. The third — sometimes weeks later — is to the bag supplier. By then the line has lost a shift to a problem that was the film all along.
Lot traceability for poly bags: what CPSC, Amazon, and class-action lawyers will ask for
When a packaging-related incident happens, the first question is: can you trace this specific bag back to the lot it was made in? Most buyers can't. The bag has no number. The case has a generic SKU. The chain dies between converter and warehouse — and that's where liability lives.
FBA poly bag compliance: the checklist Amazon won't send you
Amazon's FBA polybag policy is short. The rejection emails are vague. The actual production specs are spread across three Amazon documents and a CPSC standard that none of them link to. Here's the consolidated version, in the order it matters for a production run.
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