Microcellular Foam

Microcellular Urethane Foam

Microcellular foam is a flexible, open cell and closed cell urethane foam that is very economical and has excellent resistance to compression set. It can also be formulated to form an integral skin. Because it is mechanically mixed, the cell size is more uniform than our chemically blown cellular urethane foam.


  • Mechanically mixed
  • Self-cleaning, non-glazing
  • Uniform cell size
  • Excellent compression set properties
  • Physical properties consistent with light duty applications
  • Available with integral skin


Excellent compression set resistance makes this foam an effective material for applications with repeated compression cycles, such as actuator pads on postal meters and idler belts.

Note: Microcellular foam can be foamed over cellular foam (Solid) to modify the outer layer of a timing belt to add media transport to the toothed timing function.

Physical Properties

Click here to view tables representing the typical ranges of physical properties for our microcellular foam. For information about custom formulations and the specific values attainable for your application, please call our sales department at +1 (401) 946-4400 or email us at sales@mearthane.com.

Learn About Other Urethane Products