One process for buyers, one for sellers
During launch we broker each trade by hand. You tell us what you need or what you make, and we do the matching, lab coordination and escrow setup.
For buyers
no fee to request- Request a quoteDescribe the material, e.g. 50 kg of nanoplatelets, 5–10 layers, plus your application and timeline.
- Get matched with verified sellersWe send your request only to sellers whose material has passed independent lab testing.
- Order a sampleTrial a small quantity in your own process before you commit to bulk volume.
- Pay into escrowYour payment is held by a neutral escrow account, not sent to the seller.
- Confirm the materialCheck that what arrived is what was promised.
- Seller gets paidFunds are released to the seller only after you confirm.
For sellers
no listing fee to start- ApplyTell us about your company, products and production capacity.
- Lab verificationAn independent lab tests each product you want to list. You pay per test.
- Verified badgeProducts that pass are listed with a Verified badge and the test results behind it.
- Receive qualified RFQsWe forward buyer requests that match your material and capacity.
- Get paid through escrowThe buyer funds escrow before you ship. A commission of about 6% applies only to completed sales.
Request a quote
Tell us what you need. We review every request and reply with matched, verified sources as they come on board.
- Battery and energy storage
- Coatings, paints and inks
- Plastics and composites
- Concrete and asphalt
- University and R&D labs
Apply to sell
We are onboarding our first group of sellers now. There is no listing fee to start. You pay for lab tests on the products you list, and a commission only when a sale completes.
- Powders, dispersions, oxides and films
- Any production scale, from grams to tonnes
- Existing certifications speed up review
No monthly fees. The lab quotes the test before anything is run, and you never pay a commission on a deal that doesn't close. See all fees.
What's available, and what buyers want
Sellers list what they have. Buyers post what they need. AI compares specs, quantities and timing to suggest matches, and we confirm every match personally. Company names stay private until a deal is set up in escrow.
Have graphene to sell
Anyone with graphene to sell, whether you make it or resell it. Each product is lab-tested before it is listed.
Need graphene
Companies and labs post what they need and are matched only with verified listings.
Available now
List your materialWanted by buyers
Post a requestWhere our buyers and sellers are
Each circle marks a country with buyers or sellers on Graphene Marketplace. Click a circle to see how many. Sellers can use this to see where demand is growing and focus their marketing there.
Map: SVG Maps, CC BY 4.0
Independent testing at the University of Central Florida
Seller samples are tested at the UCF Materials Characterization Facility in Orlando, Florida, an independent university lab that accepts commercial samples. Methods follow the ISO/TS 21356-1 approach for graphene powders and dispersions.
What gets tested
| Material | Tests |
|---|---|
| Nanoplatelets / powders | Raman (layers, defects), SEM (flake size), XPS (carbon/oxygen, purity); optional TEM layer count |
| Graphene oxide / rGO | XPS (C/O ratio), Raman, XRD |
| CVD film | Raman mapping (coverage, layers), SEM |
How it works for sellers
seller pays per test- Apply and list your specsTell us each product's stated layers, flake size, purity and C/O ratio.
- Get a test quoteWe confirm the test package and price before anything is run. Estimated $800–$1,400 per product, based on UCF's published hourly rates.
- Send a production sampleShip a sample drawn from a normal production batch, labeled with the batch number.
- Results and badgeIf results match your specs, the product earns the Verified badge and the report stays attached to it.
Most graphene samples from more than 60 suppliers, tested by researchers at the National University of Singapore, contained less than 10% actual graphene.
Source: Physics World, “The value of sorting graphene flakes from fakes”The label on the drum is not enough
Graphite powder, thick multilayer flakes and true few-layer graphene can look alike in a bag. They behave very differently in a battery electrode, a coating or a composite. Buyers often find out only after a failed trial run.
We put a test between the seller's claim and your order. A product is listed as Verified only after an independent lab has characterized it.
- Independent lab, not the seller's own report
- Results attached to each listed product
- Escrow holds payment until you confirm the delivery matches
Payments held by Escrow.com
Every trade is paid through Escrow.com, a licensed third-party escrow service. The buyer's money is held until the buyer inspects the delivery and approves it. Then Escrow.com pays the seller, with the marketplace commission deducted automatically.
- Terms agreedPrice, quantity, specs and an inspection period are set in the escrow transaction.
- Buyer pays Escrow.comWire transfer is preferred; card and PayPal are accepted up to $5,000.
- Seller shipsOnly after Escrow.com confirms the funds are secured.
- Buyer inspects and approvesIf the material doesn't match, it is returned under Escrow.com's dispute process.
- Seller is paidEscrow.com releases the funds to the seller's bank account.
Escrow.com fees
paid by seller unless agreed| Order size | Fee |
|---|---|
| Up to $5,000 | 2.6% (min $50) |
| $5,000 – $50,000 | 2.4% (min $130) |
| $50,000 – $200,000 | 1.9% |
Per Escrow.com's published fees; check their calculator for current rates.
Fees, in one place
| Item | Buyer | Seller |
|---|---|---|
| Request a quote / apply to sell | Free | Free |
| Lab verification (per product) | — | At lab cost, quoted before testing |
| Marketplace commission | — | 6% of completed orders only |
| Escrow fee | — | 2.6% or less, see the Escrow tab |
| Sample orders | Flat fee, quoted per order | — |
Common questions
What does it cost?
Buyers pay nothing to post a request. Sellers pay no listing fee to start. Each product a seller lists is tested by an independent lab at the seller's cost, per test. When a trade completes, the marketplace earns a commission of about 6%. No commission is charged on trades that do not complete.
How does verification work?
The seller sends a production sample of each product to the University of Central Florida's Materials Characterization Facility in Orlando. The lab characterizes the material by Raman spectroscopy, electron microscopy, XPS and other standard methods, and reports whether it matches the seller's stated specifications. Only products that pass get the Verified badge, and the results stay attached to the listing.
How does escrow work?
The buyer pays Escrow.com, a licensed third-party escrow service, not the seller. The seller ships once the funds are secured. After delivery the buyer confirms the material is what was promised, and escrow then releases the payment to the seller.
Who handles shipping?
Shipping goes directly from the seller to the buyer. The seller arranges packaging, transport and any export documents for the material. The marketplace does not store or handle the product.
Can I buy a small sample first?
Yes. Sample orders let you trial material in your own process before you place a bulk order. Mention it in your quote request.
Are there products listed yet?
Not yet. We are in our first phase, collecting buyer requests and onboarding sellers through lab verification. We broker each early trade directly, and listings will appear as products pass testing.
Talk to us
Email: info@graphenemarketplace.com
Phone: 555-555-5555
Address: 123 Easy Street, Estero, FL 33928, USA
How we operate
- Graphene Marketplace is a broker. The sale contract is between buyer and seller; we do not take ownership of material.
- Sellers ship directly and are responsible for packaging, safety data sheets, hazardous-materials rules and export documents.
- The Verified badge covers the sample tested. Buyers should still inspect each delivery during the escrow inspection period.
- Disputes over a delivery are handled through Escrow.com's dispute process.
- Commission is earned only on completed orders. Buyers and sellers introduced here agree to complete those trades through the marketplace.
- Privacy: we use your details only to match trades and contact you. We do not sell your information.