PEBA and supercritical forming came up in a conversation earlier today. I nodded along, made a note, and then spent an hour reading about it afterwards. Here is the write up for anyone else in our world who has heard the terms and not had time to look into them.

I am not going to pretend to be a materials scientist. This is a recruiter’s read on where a technology might go and who is going to need hiring when it gets there.

What it is, in plain terms

PEBA is a high performance rubbery plastic. It is very light, it bounces back extremely well, it holds up in the cold, and it is expensive. If you have bought a serious running shoe recently, you have probably paid for it.

Supercritical forming is how you turn it into foam. Push gas into the material under high pressure, then drop the pressure fast so the gas expands and fills it with millions of tiny bubbles. You end up with something that weighs almost nothing but still performs. Crucially you also end up using a lot less of an expensive material, which is the bit that makes the accountants interested.

That is the whole idea. Take a premium material, fill it with gas, keep the performance, lose most of the cost and weight.

This is a crowded room already

What surprised me is how many familiar names are circling this from different angles.

On the material side, Arkema owns the best known PEBA brand and has pushed it into powder printing. Evonik sells a PEBA specifically marketed as foamed by a supercritical process, alongside a separate printable elastomer powder aimed at insoles and midsoles. BASF has been in expanded elastomer foam for years and built dedicated capacity in Asia for it. Lubrizol launched grades in 2025 aimed squarely at physical foaming and recyclable midsoles, and put foam application labs in China and South Korea to sit close to the footwear supply chain. Covestro, Wanhua, Huntsman, Dow and Mitsui are all in the wider elastomer fight, with the Chinese producers scaling hard on cost.

On the process and equipment side, Trexel’s supercritical foaming technology is already in injection moulding across automotive, packaging and footwear, and a lot of its foundational patents have now lapsed, which usually means the field opens up.

On the printing side, the machine builders and the bureaux are quietly adding elastomer capability. HP’s platforms and the open sintering machines both have elastomer powders available now, and service bureaux in Europe are already printing this class of material at volume.

So this is not one company with an idea. It is a lot of large companies each holding one or two pieces.

Where this could end up

Anything that protects a body. Helmet liners, body armour padding, knee and elbow protection, industrial PPE. Light, absorbs impact, springs back, works in the cold. Footwear proved the principle. Protection is the obvious next stop.

Orthotics and prosthetics. The base material is already trusted in medical. Print it to a specific patient, foam it to a specific comfort level. That combination is hard to do any other way.

Insulation and noise. This one surprised me. The same foam is decent at keeping heat in and sound out. A single material that is structural, cushioning, insulating and quiet is useful to almost everyone we recruit for.

EV batteries and electronics. Battery packs need light compressible padding that copes with heat and vibration. This fits the brief on paper. Qualification will be the hard part, not the physics.

Aerospace interiors. Seating, trim, insulation, vibration damping. Slow to qualify, big prize when it happens. There is already interest from the eVTOL crowd, who care about weight more than anyone.

Soft robotics. Grippers and contact surfaces that need to be squishy in some places and firm in others. Printing plus foaming gives you unusual control over that.

The one that made me sit up. People are building this foam with conductive material mixed in so it senses its own compression. A part that cushions, holds its shape and reads movement at the same time. Wearables, prosthetics, robot skins. That is a genuinely different way to design a product.

The lattice argument is quietly resolving

Our industry has spent ten years arguing about whether printed lattices beat foam. Researchers have now started foaming parts after they have been printed, which means you set the shape and internal structure on the printer, then set the bubble structure inside the material afterwards.

Two separate levers on the same part. The answer is starting to look like a lattice made out of foam.

The bit that is relevant to us

The people who can do this do not exist in large numbers.

It sits between disciplines that normally never share an office. Polymer and foam process people on one side. Print and lattice design people on the other. Pressure equipment and controls people underneath both. Someone has to understand how the print settings and the foam settings affect each other, because they do.

Right now most of the people who genuinely span both came out of sports footwear. Which means the footwear industry is about to become a talent pool for aerospace, medical and robotics, whether it wants to be or not. If you are hiring in this direction, that is where I would be looking.

What I would not oversell

It is still early. The process is fussy, the material is still expensive, and there is a long gap between a promising result in a lab and a signed off part on an aircraft or in a patient. Most of the big suppliers seem to be holding the right pieces without having obviously put them together yet.

But the shape of it is clear. The cost problem is being solved by process rather than chemistry, and additive is starting to treat foam as something to design with rather than something to compete against.

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Get in touch

Kensington360 has specialised in additive manufacturing recruitment since 2014, and now supports clients across the wider Industry 4.0 landscape including advanced materials, MedTech, robotics and automation, machine tools, metrology, and aerospace and defence.

If your organisation is building capability in polymer processing, foam technology, materials development or design for additive manufacturing, we would welcome the conversation.

Jordan Allen, Head of Marketing and Additive Manufacturing Recruitment Email: jallen@kensington360.com Web: https://kensington360.com

To discuss a live requirement, visit https://kensington360.com/hire-talent/