Materials > Foam

rPET Foam

Lightweight, rigid, closed cell foam
Also known as
recycled Polyethylene Terephthalate, Recycled polyester

What is rPET Foam?

Compared to other plastics, PET is the most widely recycled, with water bottles being the poster child feedstock. The most common use case for Recycled PET (rPET) is polyester clothing, but it can also be turned into rigid plastic (ie new bottles) or foam.

To make rPET into foam, gas is added to expand the polymers. Recycled PET foam has been used to provide everything from insulation for houses to structures for the blades of wind turbines.

Why choose it?

  • Lightweight
  • Closed cell
  • High strength
  • High bonding strength
  • Relatively high melting point
  • Uses recycled plastic
  • Requires less fossil fuels and carbon emissions than virgin plastics

Why not choose it?

  • Not yet common with most foam suppliers, so may require outsourcing