In thermoplastic processing, Expancel® Microspheres' uniform, closed cell structure results in a stable, controlled foaming process and is a phenomenal blowing agent on its own or combined with a chemical blowing agent.

Our Expancel®microspheres can be used in applications with process temperatures up to 235°C (455°F). It can be found in PVC, TPR, TPU, and rubber - across a wide range of thermoplastic applications. The advantages it delivers will help you achieve lighter products with higher quality in thermoplastics.

  • An easy flowing matrix enhances expansion capacity enabling low density even at low addition levels.
  • Low in density and weight with up to 40 times in volume compared to other materials.
  • Aesthetically appealing, matt rubber finish.


Expancel®DU and Expancel® DE are highly suited to help produce lightweight plastic automotive interiors and are used to reduce weight and dampen sound.

Our Expancel® DU products are used in the production of automotive weather strips for low weight and to improve sealing.

Expancel® DU and Expancel® MB allow you to produce low weight shoe soles and at the same time achieve a very important factor during the foaming process – control.

Illustration showing how Expancel Microspheres blowing agents can expand up to 60 times in volume when heated without increasing in weight.

Thermoplastic processing methods with Expancel® Microspheres

No expensive equipment or licensing is necessary. Just add Expancel® microspheres.

  • Injection molding - add Expancel® microsphere to the mix and easily achieve density reduction levels between 10-30% in injection molding.
  • Extrusion - usable in almost every type of extrusion line, our microspheres help you reach perfect expansion in profiles, hoses, sheets, cables, and more.
  • Thermoforming - expanded microspheres withstand the thermoforming stage to give you a brilliantly foamed product. Both thin and thick sheets foamed with Expancel® microsphere leads to feasible thermoforming of e.g. PS and PP.
  • Blow molding - make foamed parts with blow molding processes but note that adjustments might be necessary on blow pressure to reach low densities.
  • Calendering - produce beautifully foamed sheets of e.g. PVC in calendaring processes.

Get in touch!

Please contact our Expancel® microspheres experts.
We look forward to hearing from you.
For our existing customers, please log in to our MyNouryon customer portal.

Expancel® is a registered trademark of Nouryon in a number of territories worldwide.

We respect your privacy.

We use essential and non-essential cookies to provide, secure, analyze and improve our services. Click 'Agree' to accept or learn more about our Cookie Policy and edit your preferences. 

You can change settings at any time.