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Open Cell Polyurethane & Polyether Foams
Lightweight, flexible, and precise foam solutions for demanding applications
At Kewell Converters, we specialise in the foam conversion of high-performance polyurethane (PU) and polyether foams—materials known for their versatility, open-cell structure, and reliability in critical applications. Whether you need foam for filtration, acoustic dampening, complex gaskets, or custom packaging, we offer engineered solutions that meet the high standards of military, defence, aerospace and advanced industrial sectors.
What makes our polyurethane & polyether foams different?
Our open-cell polyurethane and polyether foams are engineered for performance where flexibility, airflow, and weight-saving are essential.
- Naturally porous for excellent airflow, sound absorption, and filtration
- Lightweight and flexible, ideal for cushioning and adaptable applications
- Durable and non-abrasive, with custom options like our Richpak® foam series
- Environmentally friendly, made without CFCs or HCFCs
These materials are selected for their ability to perform under pressure, resist wear, and deliver comfort or technical precision—tailored exactly to your needs.
Typical applications & industry use cases
Kewell Converters supplies engineered foam parts and components used in sectors where consistency and high performance are non-negotiable.
Need help choosing the right foam?
Get in contact with us today
Acoustic and sound dampening foam
Used in aviation cabins, vehicles, and control units for effective noise control
Filtration foam
Open-cell foam structures tailored for fluid and air filtration systems in industrial equipment
Gaskets and seals
Foam fabricated to extremely tight tolerances for sealing components exposed to vibration or thermal stress
Protective foam for transit & packaging
Polyether and polyurethane foam inserts custom-designed to protect sensitive instruments, electronics, optics, and weaponry in transit
Convoluted foam (egg-crate)
Excellent for cushioning and vibration absorption in transport or storage systems
Medical and cleanroom use
Non-toxic and non-abrasive foams for hygienic and controlled environments
Custom foam conversion with full CAD support
Unlike many competitors, Kewell Converters employs a full in-house engineering team and offers CAD design support with every project. We’ll help you optimise part geometry and material usage right from the start—reducing waste, improving fit, and enhancing function.
Using advanced CNC routing and cutting machinery, we convert polyurethane and polyether foams into high-precision foam parts. Whether you need a single prototype or a production run, we produce complex shapes, profiles, and contours with millimetre accuracy.
We’re always seeking to advance our capabilities, and ensure we’re at the forefront of industry developments. We’re using AI to revolutionise our manufacturing—enhancing precision, accelerating innovation, and delivering superior products and services tailored to meet the evolving needs of our customers.
Why choose Kewell Converters
Procurement, quality and production teams choose Kewell Converters for our ability to deliver precision, reliability, and value at every stage. Here’s why we’re trusted across the most demanding industries:
Specialist sectors served
Deep experience in defence, aerospace, military, medical, and advanced industrial markets
High-performance materials
Only the best branded and specialty foams, including Zotefoams, Richpak®, and other trusted manufacturers
Full design & engineering capability
From material selection to CAD to final fabrication—all under one roof
Trusted foam materials. Precision fabrication. Delivered.
Whether you’re designing protective foam for transit, acoustic foam panels, or custom foam inserts for sensitive components, Kewell Converters will work with you to specify the right material and produce foam parts that meet your exact brief.
FAQs
They’re ideal for acoustic dampening, filtration, cushioning, gaskets, and protective packaging.
Yes—all our PU and polyether foams are CFC and HCFC-free.
Yes, we offer full CAD support and precision CNC routing to produce bespoke foam components.
We do—our foams are non-toxic, non-abrasive, and suitable for hygienic environments.
Richpak® foams are strong, durable, and non-abrasive—perfect for transit protection and high-performance applications.
