This is what a buyer checks before they shortlist plastics, rubber and packaging suppliers.
What does a buyer check before switching packaging suppliers?
They check that your material is compliant for their contents, that the pack survives their distribution route, and that artwork changeover will not stall a production run. Migration data, transit test results and a stated artwork approval process cover the three risks that actually block a switch.
A packaging manager is evaluating whether changing supplier is worth the requalification work.
Last corpus review: 4 August 2026 · Written for packaging manufacturers selling to business buyers
What does a buyer check before switching packaging suppliers?
What buyers check in plastics, rubber and packaging
Three things, in order: what the product is, what the paperwork proves, and when each document gets asked for.
That the material is compliant for the inte…
Food contact compliance declaration
Asked at: any food, beverage or pharmaceutical application
That substances do not transfer into the pr…
Migration test report
Asked at: technical qualification
Hygiene and quality certification the buyer…
BRCGS Packaging Materials certificate
Asked at: supplier approval
First, what the product is
The fields a buyer scans before deciding whether you are worth contacting. Missing one of them usually ends the visit without an email.
- 1
Material and grade
Determines compliance, barrier and recyclability all at once.
- 2
Dimensions and tolerances
The pack has to run on the buyer's existing line.
- 3
Print process and colour capability
Flexo, offset, rotogravure and digital differ in cost, minimum run and quality.
- 4
Barrier properties
Decides shelf life for the packed product.
- 5
Closure and compatibility
A pack that does not seal on their machine is not a pack.
- 6
Pallet configuration
Drives freight cost and warehouse fit.
- 7
Minimum order quantity per SKU
The most common reason a packaging enquiry fails.
Then the paperwork
Naming the documents you can issue is what separates a supplier who can be audited from one who cannot.
| Document | What it proves | Where it belongs |
|---|---|---|
| Food contact compliance declarationAsked at: any food, beverage or pharmaceutical application | That the material is compliant for the intended contents in the destination market | Publish it |
| Migration test reportAsked at: technical qualification | That substances do not transfer into the product beyond permitted limits | Name it, share on request |
| BRCGS Packaging Materials certificateAsked at: supplier approval | Hygiene and quality certification the buyer's own auditors recognise | Publish it |
| Transit and performance test reportsAsked at: before a distribution change | Drop, compression and burst performance under a recognised protocol | Name it, share on request |
| Artwork approval processAsked at: onboarding — it decides changeover risk | How proofs, colour targets and sign-off actually work | Publish it |
| Chain of custody certificate (FSC or PEFC)Asked at: brand-owner requirements | Responsible fibre sourcing for paper-based packaging | Publish it |
| Recycled content and recyclability statementAsked at: increasingly, at first evaluation | Substantiated material claims rather than a logo | Publish it |
The shortlist moment
A buyer lines up a few suppliers and keeps the ones whose proof is easy to check. The rest get a closed tab, not an email.
The buyer asks: What does a buyer check before switching packaging suppliers?
A few suppliers get compared side by side:
A supplier with Food contact compliance declaration on the page
That the material is compliant for the intended contents in the destination market
A supplier with BRCGS Packaging Materials certificate on the page
Hygiene and quality certification the buyer's own auditors recognise
A supplier with Artwork approval process on the page
How proofs, colour targets and sign-off actually work
Is one of them you?
What Plact does for plastics, rubber and packaging suppliers
Four jobs, done on your site. Each one is a document buyers in this industry already ask for.
Put the Food contact compliance declaration on the page buyers check
That the material is compliant for the intended contents in the destination market
Put the BRCGS Packaging Materials certificate on the page buyers check
Hygiene and quality certification the buyer's own auditors recognise
Put the Artwork approval process on the page buyers check
How proofs, colour targets and sign-off actually work
Put the Chain of custody certificate (FSC or PEFC) on the page buyers check
Responsible fibre sourcing for paper-based packaging
What a useful enquiry looks like
A form that collects these fields can be answered properly the first time. A form that collects a name and a message cannot.
Enquiry form · packaging
Enough to reply usefully, short enough that a buyer finishes it.
- Pack format and dimensions
- Determines whether you can make it at all.
- Contents and shelf life target
- Drives material and barrier selection.
- Annual volume and number of SKUs
- The main cost drivers.
- Print requirement and number of colours
- Changes process and tooling.
- Existing pack sample or drawing
- Faster and more accurate than any description.
- Destination and required date
- Compliance and freight follow the market.
An enquiry from this search asks for
- Annual volume and number of SKUs
- Destination and required date
- Pack format and dimensions
- Contents and shelf life target
Questions suppliers ask
What is the single most useful page for a packaging supplier?
A format and capability table: pack types, size ranges, materials, print processes, colour counts and minimum order quantities. It answers the first four emails of every enquiry and lets buyers rule themselves in or out without a call.
How should sustainability claims be handled?
State the material, the recycled content as a percentage of what, and the certification body where one exists. Unqualified claims like "eco-friendly" are actively counterproductive with professional buyers, who now expect a substantiated basis for any environmental statement.
Should minimum order quantities be public?
Yes. MOQ is the most common reason a packaging enquiry fails, and discovering it on the third email wastes both sides. Publishing it costs you enquiries that would have failed and wins you credibility with the ones that would not.
Documents and standards named here are the ones buyers in this industry commonly ask for; requirements vary by market, customer and contract, so treat this as a starting checklist rather than a compliance list. Clearer pages can help discovery and evaluation. They do not guarantee rankings, AI citations, enquiries or revenue.
Plact Research. Plact's editorial desk for buyer-evidence research. Industry standards, documents and buyer questions are researched and drafted with Plact's AI tools, then reviewed by Praveen Kavuri before publication. Every claim cites the standard, regulation or public source it rests on.
Related buyer questions
- Plastics and rubberWhat does a buyer check before sending a part drawing to a moulder?
- Rubber productsWhat does a buyer check before sourcing a rubber component?
- Packaging machineryWhat should a packaging-machinery builder's website prove about line speed, changeover, and validation?
- CementWhat does a buyer check before sourcing cement?
Get your free review
A free review of what a buyer finds when they look for plastics, rubber and packaging suppliers, and what to fix first.