ECIV Matchmaking

1 May 2025 – 31 Aug 2029

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Sander Nevejans

Founder & CEO

Seastex Ltd

Glasgow, United Kingdom

2 profile visitsParticipants

Tammer of Sounds, who gives new worth to the by-products of industries. Builder of new textile-recycling technologies. Reducer of waste, enemy of the landfill.

My organisation

Seastex Ltd

Seastex Ltd

Startup

Glasgow, United Kingdom

Globally, mussel farming produces hundreds of thousands of tonnes of adhesive protein fibres (byssus) that are currently landfilled or used as biomass. At the same time, the built environment depends on mineral wool, foams and PET felts, while cosmetics rely on microplastics and petrochemical powders, all carbon intensive, poorly recyclable and often toxic. Seastex addresses the combined challenge of unmanaged aquaculture waste and the lack of scalable, circular, nature-based materials for acoustic comfort and “clean beauty”. Seastex has developed the first industrial process capable of cleaning and processing heavily contaminated byssus from long-line and raft-cultured mussels. Over a controlled cycle, our proprietary purification methods and technologies remove shells, grit and organics while transforming the byssus’s natural adhesive plaques into a binder. This creates a pure protein, self-binding, flame-retardant fibre that can be moulded into acoustic panels or converted into cosmetic-grade powders. The result: a single circular platform that upgrades an unused marine textile waste stream into zero-VOC, low-carbon, recyclable, biodegradable materials for architecture and cosmetics, directly serving climate, circularity and zero-pollution goals.
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About me

I'm the founder and driving force behind Seastex, and a leading expert in mussel byssus materials and technology. My background blends craftsmanship, engineering, design, and deep technical curiosity, forming the foundation of Seastex’s unique innovation capability.

Raised in Belgium, I grew up working in his father’s blacksmithing and metal fabrication business from the age of 12. Beginning with basic workshop tasks and progressing toward fabricating metal gates, staircases, balustrades, steel windows/doors and performing on-site installations, I gained hands-on experience in materials, mechanics, fabrication, and practical engineering. During this period I studied electro-mechanical engineering in high school, giving me further exposure to mechanical systems and applied industrial processes.

After graduating at 19, I pivoted into interior design, earning laureate honours in 2015. I then completed an internship in Tokyo, which evolved into a three-year work visa due to my commitment and work ethic. Over that period, I completed 26 projects across Japan and China, gaining valuable experience in product detailing, architectural execution, spatial planning, and cultural adaptability.

I later relocated to London, joining several design firms before advancing to Wimberly Interiors (WATG), a globally recognised American architecture and design practice. My nine years in architecture and interior design provided a strong understanding of specifications, construction requirements, acoustic performance demands, and the expectations of architects, developers, and interior designers - knowledge that directly informs Seastex’s product development.

The origin of Seastex began in 2021 when I discovered mussel byssus and became intrigued by its absence as a commercial material. For the next two years, I dedicated all available time to researching, cleaning, separating, testing and experimenting with byssus fibres in a warehouse flat in East London. Every cleaning method, prototype, and piece of equipment was hand-developed by me.

After a successful debut at the London Design Festival 2023, I made the decisive choice to leave my secure design career to pursue the creation of a new industry. Within the following year, and supported by Innovate UK Business Growth, I secured three small government grants, enabling Seastex to reach TRL 7 and proving its technological and commercial potential.

Today, I have:

  • designed and developed all byssus processing methods,

  • built every prototype machine currently used in the pilot facility,

  • engineered Seastex’s TRL7 processing line,

  • developed the first generation of acoustic byssus panels and cosmetic-grade byssus powder,

  • built the go-to-market strategy and the commercial expansion plan.

Please get in touch if you’d like to add value to Seastex and take part in building an entirely new value chain for textile recycling.

Social media

Skills

  • Advanced materials research & innovation
  • Process and manufacturing engineering
  • Hands-on prototyping & machine building
  • Applied mechanical engineering
  • Product Development
  • Design & architectural specification expertise
  • Craftsmanship & fabrication skills
  • Research-driven experimentation & iteration
  • Entrepreneurship & venture leadership
  • Go-to-market & commercial strategy development

Interests

  • Swimming
  • Running
  • 3D CAD software
  • Product Design
  • Politics
  • Environment
  • Trade fairs
  • Factory Visits
  • Production
  • deep tech
  • Clean Tech
  • Blue-Economy
  • Circularity
  • New Value Chains
  • green jobs

Additional questions

Areas of activity

TextilesCircular business modelsIndustrial symbiosisBioeconomyConstruction

Region

UK- SCOTLAND

THEMATIC GROUPS INTEREST

TG-Circular textile productionTG-Biobased materials in ConstructionTG-Secondary raw materialsTG-Design out of wasteTG-Industrial symbiosisTG-Circular Wool products

Marketplace (1)

  • Project cooperation

    Byssus Tech for Textile Waste Valorisation

    R&D into producing insulation products from textile waste using Byssus Technology and novel circular flame-retardant bio-based binders.

    • Product innovation
    • Process innovation
    • Circular bioeconomy
    • Looking for partners
    • Recycling techniques
    • Experimentation call
    • Materials innovation
    • Technological innovation
    • Circular textile and fashion
    • 2nd Call 2026 (max 1.5 years)
    • 1st Call December 2025 (max 2,5 years)
    • Repair, Reuse, Refurbishment, Remanufacturing
    • Circular construction materials and built environment
    • Industrial symbiosis and circularity in industrial parks
    Author

    Sander Nevejans

    Founder & CEO at Seastex Ltd

    Glasgow, United Kingdom