PACT

Buyer's guide

How to Choose an Adhesive Manufacturer

Eight checks that separate a manufacturer who can hold a specification in production from one who can hold it in a sample tin — written so you can apply them to us as readily as to anyone else.

Last updated: 2026-09-07

The short version

Establish that they manufacture rather than resell, get test data for the exact grade rather than a company certificate, and confirm the destination market's VOC and dangerous-goods position before you discuss price. Those three settle most of it.

Everything below is the long version. It is the same screening tier-1 and tier-2 manufacturers apply to us, reproduced so you can apply it to any vendor — including this one. A supplier guide that only flatters its author is worth nothing to you.

Eight checks, in the order worth doing them

1.Ask whether they own the reactor — and ask for a batch record

A large share of the adhesive suppliers listed on sourcing platforms are trading companies rebadging someone else's drums. That matters less for price than for traceability: when a bond fails in the field six months after shipment, you need the manufacturer to produce batch records, raw material lot numbers and retained samples. A trading company cannot, because it never had them.

Ask this

Do you own the reactor and the filling line? Can you send a batch record from a recent production run, with the customer details removed?

2.Ask for test data on the grade you are buying, not a company certificate

An ISO 9001 certificate says the company has a quality system. It says nothing about the adhesive in the drum. What you need is a current report from a named laboratory, for the specific grade you are quoting, covering the property your application actually depends on — peel strength on your substrate pair, VOC content against your market's limit, heat ageing at your service temperature. Ask which lab issued it and on what date; reports much older than two years get rejected during re-qualification.

Ask this

Which laboratory issued this report, on what date, and is it for this exact grade or for a related one?

3.Check that the formulation will not quietly change

Adhesive cost tracks polychloroprene, SBS and solvent prices. Suppliers under margin pressure adjust solids content or swap tackifying resins, and the first thing you notice at your plant is a shorter open time or a changed spray pattern — months after the decision was made. A supplier with real formulation control will tell you what they will and will not change without notice, and will agree to freeze the specification for the life of a programme.

Ask this

Will you commit in writing to notify us before any change to solids content, solvent system or tackifier?

4.Confirm performance at your worst case, not the datasheet case

A datasheet figure is a laboratory result under laboratory conditions. "Heat resistant to 100°C" may mean one hour at 100°C, not the 500-hour ageing your application needs. The same applies to humidity, to substrate contamination and to line speed. Specify the condition you actually run at and ask for retained property after ageing, not just the initial value.

Ask this

What is the peel strength after 500 hours at our service temperature — not the initial value?

5.Check the destination market before you check the price

A solvent-borne contact adhesive can comply with China's GB 33372-2020, which limits most chloroprene uses to 600 g/L, and still be far outside the 80 g/L that California's Rule 1168 sets for contact adhesive — the two are not even calculated on the same basis. If your market has a VOC rule, an emissions rule or a substance restriction, that decides the chemistry before performance or price gets a vote. A supplier who cannot tell you which instrument governs your market has not sold there.

Ask this

Which VOC instrument applies in our destination market, and does this grade meet it?

6.Ask how they ship it — solvent adhesives are dangerous goods

Solvent-borne contact adhesive has a flash point below 0°C, which makes it UN 1133, Class 3 flammable liquid. Aerosols are UN 1950. That means dangerous goods packaging certification, an IMDG declaration, restrictions on consolidation, and some carriers and ports simply refusing the cargo. A supplier who has never shipped DG to your region will discover all of this on your first container, at your expense.

Ask this

Have you shipped Class 3 adhesive to our port before, and who prepares the DG documentation?

7.Check the pack format matches your market, not theirs

Cartridge sizes, can volumes and pail formats differ by region — North America runs on ounces and gallons, most other markets on millilitres and kilograms. A supplier quoting their standard format is quoting you a repackaging problem. Ask what it costs to run yours, because the answer involves tooling and fill-line setup, not just a different label.

Ask this

Can you fill our market’s pack format, and what is the setup cost and MOQ for it?

8.Test the technical response before you test the adhesive

Send a real technical question — an awkward substrate pair, a cycle time you cannot change, a spray gun you already own — and see whether the reply comes from someone who understands the process or from a sales template. Over the life of a supply relationship you will need that answer far more often than you will need a new quotation.

Ask this

A genuine question about your own process. The quality of the answer is the test.

Red flags

None of these is proof of a bad supplier on its own. Two or more together usually means you are talking to someone who does not make the product.

SignalWhat it usually means
Cannot name the base polymerA manufacturer knows whether it is chloroprene, SBS or PU. A reseller reads the label.
Only company-level certificatesISO 9001 describes the system, not the product. Grade-level test data is what a buyer can act on.
Price quoted before substrate is knownAdhesive is selected by substrate and load. A number that arrives before those questions is a guess.
Every specification met, no limitations givenEvery chemistry has a wrong application. A supplier who names none has not thought about yours.
No answer on dangerous goods handlingThe first solvent-borne container will stall at the port, and the cost lands on you.
Datasheet with no test method or standardA peel figure without a method is not comparable between suppliers.
Reluctance to send a batch record or a retained sampleBoth exist as a matter of course in a real factory. Their absence is the answer.

The enquiry worth sending

Most first enquiries are answered with a price and nothing else, because most first enquiries ask for nothing else. Send this instead — to us and to whoever else you are considering — and the replies will separate themselves.

  • 1. We are bonding [substrate A] to [substrate B], in [application]. What grade do you recommend and why that one?
  • 2. Do you manufacture it yourself? Which production line, and can you send a batch record from a recent run?
  • 3. Please send the TDS and SDS for that exact grade, plus the most recent third-party test report and the issuing laboratory.
  • 4. Our destination market is [country]. Which VOC instrument applies and does this grade meet it?
  • 5. Is this product classified as dangerous goods? What UN number and packing group, and have you shipped it to [our port] before?
  • 6. What is the MOQ, the lead time, and the pack format? Can you fill [our format], and at what setup cost?
  • 7. What is the shelf life, and what storage conditions does it require in transit and in our warehouse?
  • 8. What will you notify us about before changing it?

Our own answers to all eight are on this site rather than behind an enquiry form: seeVOC limits by market,certifications and test reports,storage and shelf life, and MOQ, lead time and terms.

Frequently asked questions

How can I tell whether an adhesive supplier is a manufacturer or a trading company?
Ask three questions and read the specificity of the answers. First: do you own the reactor and the filling line, and which lines do you run? A manufacturer names the equipment. Second: can you send a batch record from a recent run with customer details removed? A trading company has never held one. Third: what is the base polymer and the solids content of this grade? A manufacturer answers immediately because they formulated it. Asking to see photographs of the specific production line — not a generic factory shot — separates the two quickly.
What documents should an adhesive supplier provide with a shipment?
At minimum: a technical data sheet for the exact grade, a safety data sheet in the language of the destination market, a certificate of analysis for the batch shipped, and — for solvent-borne products — dangerous goods documentation including the UN number, packing group and an IMDG declaration. Depending on market, add a REACH SVHC statement, a VOC content statement against the governing instrument, and any third-party test report your specification requires.
Is a low MOQ a good sign or a bad sign when choosing a supplier?
Neither on its own. A genuinely low MOQ from a manufacturer means small reactor batches or stock availability, which is useful for a first order. A very low MOQ from a supplier who cannot describe their production is more likely a trading company selling from someone else’s inventory. What matters is whether the MOQ is consistent with the production method they describe. For reference, our own liquid adhesive production MOQ is 500 kg, with trial orders from 200 kg.
How long should supplier qualification take?
For a standard grade against a known substrate, allow four to eight weeks: sample in 5-7 working days, your own bench and line trials, then a first production order. For a formulation developed to your specification, add the development cycle of 2-4 weeks. Programmes that require third-party or customer-side certification run longer, and that portion is outside any supplier’s control — treat a promise to compress it as a warning rather than a service.
Should I visit the factory before ordering?
If the volume justifies the trip, yes — but a video call walking the production line answers most of the same questions at no cost. Ask to see the reactor or mixing vessel, the filling line for your pack format, the QC laboratory and the warehouse, in one continuous shot rather than as separate clips. What you are checking is that the equipment matches the capability described in writing.

Check us against the list

Apply these checks to us

Send the eight questions above. We will answer all of them in writing, including the ones where the honest answer is that another chemistry suits your application better.