Marketplace
What a B2B polymer marketplace is
If you buy or sell polymer, plastic scrap or recyclate, you have probably been told to “put it on a marketplace”. This page explains what that actually means, how a B2B polymer marketplace differs from the broker and WhatsApp routes most material still moves through, and what to check before you commit your stock list to one.
What a B2B polymer marketplace is
It is an online platform where suppliers list material for sale and buyers browse it directly. Rather than seeing one broker’s inventory, you see many sellers’ offers side by side — grade, condition, tonnage, minimum order, price, incoterm and location on each listing — and you contact the supplier yourself.
Most also run the other direction: a buyer posts a requirement stating the specification and tonnage they need, and sellers approach them. That matters more than it sounds. Polymer supply is lumpy and specific, and a buyer who needs twenty-four tonnes of a particular grade next month is often better served by announcing it than by scrolling a board.
How it differs from a broker or a WhatsApp group
Most surplus and recycled polymer still moves through informal channels: mailing lists, messaging groups, and a broker’s personal contact book. Those work. The limitation is arithmetic — the same tonnes get offered to the same twenty people, so material that has a buyer somewhere sits, gets discounted, or is disposed of because the seller had no efficient route to them.
A broker earns a margin for curation, relationships and taking some of the risk out of a trade. A marketplace does not replace that; it changes the reach. A lot goes in front of everyone looking for that grade rather than the handful the seller happens to know, and the buyer can compare offers rather than take one on trust. Plenty of traders use both, for different material.
The honest trade-off: informal channels come with a relationship attached, and a marketplace listing does not. That is why what a platform does about identity and documentation matters so much.
What to look for when choosing one
Five questions worth asking before you list anything:
- 01Can buyers see the listing without an account? A platform that hides material behind a signup wall is optimising for its own sign-up numbers, not for selling your stock.
- 02What does a listing actually have to state? Grade, condition, tonnage, MOQ, incoterm and location are the minimum a trader needs to price something. A board of vague listings wastes everyone's time.
- 03Can you attach a TDS, COA or photographs? For anything that is not prime, documentation is the difference between an enquiry and a sale.
- 04Who is behind each account, and can you tell? Company identity is what makes due diligence possible. No platform can guarantee a counterparty, and one that claims to is telling you something about itself.
- 05What is the charging model, and when does it bite? Free to list, free to contact, subscription, commission — all exist. Find out before you invest time, not after.
What it should cost
There is no standard. The common models are a subscription for access or messaging, a commission on completed deals, a fee to unlock contact details, or some combination. Each shapes behaviour differently: commission gives the platform an interest in deals closing, and a subscription gives it an interest in you finding the board useful enough to keep paying.
What is worth resisting is paying to find out whether there is any liquidity at all. You should be able to see the board, judge whether the material and the buyers are real, and only then decide whether the platform is worth money to you.
Where Prime Polymers fits — and where it does not
Prime Polymers Marketplace is a UK-operated B2B marketplace for polymer and recycled plastic: prime, near-prime, off-spec, regrind, regranulate, recycled and scrap, across PVC, HDPE, LDPE, LLDPE, PP, PET, PS, ABS and nylon. Every listing states grade, condition, tonnage, MOQ, price, incoterm and location. Buyers who cannot find what they need post a Wanted requirement instead.
Against the five questions above: the board is public and readable without an account, photographs included. Listings must carry the fields a trader needs to price them. Sellers can attach a TDS or COA. Listing, browsing and posting a requirement are free, with no commission on any transaction — a membership at £13.99/mo unlocks direct messaging and AI matching, and nothing else sits behind it.
Where it does not fit, stated plainly: this is a new marketplace. The board is small and currently weighted towards PVC, so if you are a buyer looking for depth across every polymer today, an established platform will have more listings than we do. What that means in practice is that a seller listing here has very little competition for attention, and a buyer is better off posting a Wanted advert than browsing and concluding there is nothing here.
If you want that set out against the specific platforms you are probably weighing us against, how we compare does it one by one — including the cases where the other one is the better choice.
We are also not a broker. ARC Polymers Ltd is an intermediary and matchmaking service: not a party to any sale, taking no title and no commission, giving no warranty on listed goods. Prices are exactly what sellers entered — never computed, adjusted or benchmarked by us. There is no escrow and we do not handle payment.
Frequently asked questions
What is a B2B polymer marketplace?
An online platform where suppliers list polymer and recycled plastic for sale and buyers browse, compare and contact them directly. Instead of seeing one broker's inventory, you see many sellers' offers side by side with grade, condition, tonnage, price, incoterm and location on each one.
How is a marketplace different from a broker?
A broker holds a contact book and takes a margin on the trade. A marketplace shows you the offers and lets you deal with the supplier yourself. The broker's value is curation and relationships; the marketplace's value is reach and transparency. Plenty of traders use both.
Is it free to list polymer on a marketplace?
It varies. Some platforms are free to list and charge for contact or messaging, some charge a subscription, and some take commission on completed deals. Establish which model you are in before you list, because 'free to list' and 'free to trade' are different claims.
How do I know a counterparty is genuine?
No marketplace can guarantee it, and be wary of any that says otherwise. What a good one does is make verification possible: a real company identity behind each account, documents attached to listings, and no pressure to skip your own checks. The due diligence stays yours.
Do marketplaces set the price of polymer?
Reputable ones do not. Prices on a listing are what the seller entered. If a platform presents a figure as a market price or benchmark, ask where the data comes from and how many contributors sit behind it — an assessed price and an asking price are very different things.
Have a look
Browse the board — no account needed, and you can judge the depth for yourself in about a minute. To sell, list a lot or drop in an availability sheet and publish up to a hundred at once. Buying and nothing fits? Post what you are looking for. Our trading guides cover grades, specifications and incoterms, Help answers the practical questions about using the site, and About says who operates it.