PET Felt Technology

From plastic bottle to acoustic furniture. We pioneered PET felt in furniture design, transforming recycled material into high-performance acoustic solutions. Produced locally in Western Europe in 11 colour blends, it combines soft textile aesthetics with plastic durability and complete recyclability.

From Bottle to Chair

The journey from waste to furniture happens in five stages. Each step transforms the material further, from compressed plastic bottles to three-dimensional furniture components.

Compressed plastic bottle bales at a recycling centre, the raw material for De Vorm PET felt production

1. Plastic waste

Bottles arrive at recycling centres in 250kg compressed bales. They're separated, cleaned, and sorted. The sorting machine removes all coloured parts, including caps and labels, leaving only clear PET bottles ready for processing.

Loose plastic bottles and waste collected at a recycling centre, the first step in De Vorm PET felt production

2. Flakes

Sorted bottles move into the granulator where rotating blades shred them into 1cm flakes. The granulator removes remaining debris. What were once plastic bottles are now pure PET flakes, ready for transformation.

PET polyester fibres being layered into sheets during the De Vorm PET felt production process

3. Fibre

PET flakes travel through an extruder that melts them into polyester fibres. Hard plastic becomes soft, wool-like material. The fibres are then cut into thin sheets, preparing them for the felting process.

PET felt sheets being compressed and bound by needle-punching machine during the felting process

4. Felt sheets

The felting machine layers and compresses the fibres. Thousands of barbed needles stab the material, binding it into felt. Three felt sheets are merged into a dense mat through repeated needle-punching, ready for pressing.

De Vorm production specialist placing a PET felt sheet into a moulding press to form a three-dimensional chair seat

5. Chair

PET felt can take any three-dimensional shape. A single moulding action transforms flat felt sheets into sturdy chair seats, acoustic panels, or lampshades whilst preserving the soft, wool-like texture.


Colour Palette

Available in 11 colour blends across all PET felt applications. Specify the same colours for acoustic panels, upholstery, and privacy screens throughout your project, creating visual coherence from furniture to architectural elements. The palette supports consistent material language across your design.

  • Dark grey
  • Light grey
  • Beige
  • Brown
  • Pink
  • Marine
  • Turquoise
  • Olive
  • Dark green
  • Green
  • Yellow

Material benefits

Made from recycled plastic bottles and produced locally in Western Europe, PET felt combines sustainability with high performance.

Circular material

Circular material

Transforms waste into acoustic furniture whilst designed for complete recyclability at end of life.

Superior acoustics

Superior acoustics

Delivers excellent sound absorption, outperforming traditional foam alternatives.

11 colour blends

11 colour blends

Consistent colour specification across acoustic panels, upholstery, and screens.


Safe and durable

Safe and durable

No dangerous off-gasses, lead, or tin. Maintains performance over decades.

Local production

Local production

Manufactured in Western Europe, reducing transport distances.