Your material is 20% better. The customer still won't qualify it.

There is a particularly cruel version of product-market fit in advanced materials. You make something demonstrably better. Lower weight. Higher thermal conductivity. Better corrosion resistance. Less embodied carbon. Maybe all four, if the lab has been having a good year. The customer agrees that it is better. Their engineers are interested. Samples are requested, tests are run, everyone says encouraging things. And then the incumbent material, demonstrably worse according to the PowerPoint you have now presented fourteen times, gets ordered again. This can feel irrational until you understand what an industrial customer is actually buying. They are not buying the best material. They are buying a qualified material inside a qualified process, with a known supplier, known variability and known consequences when something changes.

That distinction matters enormously because material qualification can be longer than the sales cycle founders think they are entering. A useful Pacific Northwest National Laboratory report on industrial material qualification gives some wonderfully sobering numbers. In automotive, it cites estimated qualification periods of 18 to 20 months for metals and five to seven months for plastics and polymer composites. Add development and industrial introduction and a new material can take three to seven years to reach a production line, with qualification beginning two or three years before start of production. The report also explains why performance alone is insufficient: manufacturers have to consider cost of implementation, long-term behaviour, crashworthiness where relevant, compatibility with adjacent materials, corrosion, coatings and the manufacturing process itself.

This produces a mistake I see surprisingly often in the way advanced-materials companies describe their market. They calculate the addressable tonnage of aluminium / polymer / coating / electrolyte / composite currently being consumed, multiply it by a plausible price and conclude that they are looking at a billion-euro market. Technically, perhaps. Commercially, not yet. The useful market is the part of that tonnage where somebody has both a reason and an opportunity to change material. A material already specified into a product, validated in a production process, sourced from an approved supplier and performing adequately is much harder to displace than a spreadsheet suggests. “Better” creates technical interest. A reason to requalify creates a market.

And qualification is much more than sending a nice sample. The automotive industry's Production Part Approval Process is a good example of how quickly this becomes real. Intertek’s explanation of PPAP for materials lists tests ranging from flammability and heat ageing to tensile properties, shrinkage, impact behaviour and thermal expansion. The objective is not merely to demonstrate that a material once achieved a specification in your laboratory. The customer needs confidence that the material, supplier and production process can keep achieving it when thousands or millions of parts are involved.

Medical devices make the same point even more explicitly. Terumo Medical’s supplier quality manual says material qualification takes place before serial production and is intended to establish that a supplier can consistently provide product conforming to specification. Qualification can include first-article inspection, process information and even on-site review of the supplier. And after approval, the supplier cannot simply change the product or process without going through change control. That last bit is commercially more important than it sounds. Once you are qualified, changing away from you can become painful too. Qualification is a barrier on the way in, but eventually it can become part of your moat.

Aerospace takes this logic to its natural extreme. In July, Hexcel announced that its HexPly M91 composite material system had completed qualification through the National Center for Advanced Materials Performance. What is interesting about Hexcel’s announcement is not simply that the material passed. The valuable asset created by qualification is the validated material-property dataset aerospace manufacturers can use in design and certification. Hexcel explicitly says shared qualification data reduces the time and cost customers would otherwise face when introducing the material.

That suggests a much better way to think about commercialization for an advanced-materials startup. Your product is not just the chemistry, powder, film, coating, resin or composite you invented. Part of the product is the evidence required to make using it an acceptable decision. The technical data sheet is part of the product. Batch consistency is part of the product. Processability is part of the product. Supply reliability is part of the product. Regulatory documentation is part of the product. The qualification package is part of the product. Eventually, being listed in somebody's approved system can be one of the most valuable parts of the product.

There is a nice real-world example unfolding right now at 5E Advanced Materials. The company did not move directly from producing boric acid to selling commercial volumes. It started customer qualification. Samples went to customers. One major LCD-glass manufacturer first evaluated the material in the lab, then put it through a supply-chain trial, and finally ran a 20-ton commercial tank trial. The process took roughly eight months. Only after passing impurity, moisture, particle-size, flowability, logistics and commercial-production requirements did the conversation move towards an offtake agreement. 5E now says it has qualified 14 customers across several end markets. Its development overview is worth looking at because it shows qualification not as an R&D footnote but as a distinct commercial workstream alongside production, financing and the eventual investment decision.

This changes who you should sell to first.

The instinct is usually to find the customer with the largest possible volume. I am not sure that is always right. Your first customer should often be the one with the cheapest credible path through qualification. That might mean a non-safety-critical application rather than a structural one. An aftermarket component rather than a new vehicle platform. Industrial equipment rather than aerospace. A customer introducing a new product anyway rather than one you are asking to redesign an existing one. A buyer suffering an acute supply problem rather than one whose incumbent material works perfectly well. Or an application where regulation is forcing everybody to reconsider the material stack regardless of whether your startup exists.

The last point is particularly important. Material startups should hunt for requalification events.

A new regulation is one. A banned substance is another. Supplier failure. Geopolitical sourcing requirements. A new production line. A new vehicle or aircraft platform. A customer trying to reduce weight. A recycling target. A product redesign. An incumbent discontinuing a grade. A factory moving jurisdiction. These events change the economics because the customer is going to incur some qualification pain anyway. You are no longer asking them to abandon a known material simply because yours is nicer. You are arriving when the door is already open.

There is a second implication, and this one should affect fundraising as much as sales. A founder saying “we are in discussions with twelve automotive OEMs” tells me almost nothing. I would rather know what stage each material is actually at. Has somebody reviewed the datasheet? Tested a coupon? Defined an application? Agreed the qualification protocol? Run it through the customer's process? Tested a production batch? Started supplier onboarding? Specified it into a future program? Those are very different commercial assets.

This is where advanced materials need their own version of the semiconductor design-win funnel. The stages might vary by industry, but the underlying idea is the same: interest → sample evaluation → application fit → qualification plan → process qualification → supplier approval → specification/design-in → commercial agreement → production. You should know where every serious customer sits, what evidence is required to move one step further and, importantly, who pays for producing that evidence.

Because qualification can become an expensive hobby. If every interested corporate receives custom material, months of engineering support and a bespoke testing program paid entirely from startup runway, having “lots of pilots” is not necessarily traction. Sometimes it is merely an unusually efficient way to distribute your venture funding to large companies.

So when an industrial customer says your material looks fantastic and asks for samples, do not only ask how many kilograms they want.

Ask what happens if the sample works.

Which application are we qualifying for? What specification applies? Which tests are required? Who owns the qualification internally? What production process must it survive? What documentation will procurement need? What event creates the opportunity to replace the incumbent? Who pays for the next stage? And what commercial decision becomes possible when we pass?

Those questions may make the opportunity look smaller.

Good.

The point of commercialization is not to preserve the size of the PowerPoint market. It is to find the bit somebody can actually buy.

If you're trying to work out which industrial customers have a real path to qualifying your technology, rather than merely an interesting reason to test it, that is exactly the kind of commercial problem SLSCRW works on.