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  • Catalogue
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  • Ostrea presentation / Press kit
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  • Photo kit
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  • Technical datasheet
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  • User guide
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  • CSR commitments
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  • FDES – expected in 2026
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Innovative material made from recycled shells. French, high-performance, and low-carbon, it is designed for flooring, countertops, and furniture.

Each year in France,
250,000 tonnes of shell waste from shellfish farming end up in landfill sites. We give them a new life by incorporating them into our material.

The material

Eco-friendly

OSTREA material is composed of 55% shell flakes and 45% mineral matrix (resin-free).

Recycled & Renewable

Recyclable

Low carbon

Made in France

High performance

The material has technical properties similar to those of natural stone. Its density ranges between 2200 and 2400 kg/m³ (44–48 kg/m²). OSTREA technology is a patented innovation

UV-resistant

Impact-resistant

Stain-resistant

Custom-made

We create your custom projects using slabs measuring 305 × 145 cm (2 cm thick).

For floor tiles and furniture tops, we handle custom manufacturing directly.


For your kitchen, bathroom, or B2B fit-out projects, production is entrusted to one of our partner stonemasons, as these applications require professional installation and craftsmanship.

Creation process

  • 001

    Collection of shells from shellfish farming operations and grinding the shells into flakes

  • 002

    Assembly of the shells with a patented mineral matrix

  • 003

    30-day curing phase with no firing required

  • 004

    Polishing & surface treatment for stain resistance

  • 005

    Custom cutting for the creation of countertops, furniture tops, and floor tiles.

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