Certified
Commercially certified
In market, not in testing
Aviation
Sector proven
Certified for aviation interiors
BioPRO®
Registered technology
Proprietary to SLG / encircol
Net zero
Manufacturing base
Scope 1 & 2 - SLG production
The technology
Collagen, engineered to perform.
BioPRO® is a proprietary material technology that applies precision process chemistry, engineering rigour and form-fitting capability to the collagen stream - the by-product of leather manufacturing. The result is a range of engineered bio materials with performance characteristics competitive with conventional synthetic alternatives.
Where conventional materials engineering starts from synthetic precursors, BioPRO® starts from a natural structural protein. The collagen matrix provides inherent tensile strength, thermal stability and form-fitting capability - characteristics that process chemistry then refines for each application.
Industrial foundation
BioPRO® is produced and certified by Scottish Leather Group - part of a manufacturer with over 200 years of production heritage and net zero Scope 1 & 2 credentials.
Already in market
Not a concept.
In commercial production.
BioPRO® is not an experimental material - it is certified and in commercial production through Scottish Leather Group's Muirhead brand, deployed across aviation interiors, automotive seating, and mass transit. That deployment history provides a credibility foundation that purely experimental bio materials cannot match.
encircol is the programme through which BioPRO® technology is now being applied to advanced industrial material formats - for construction, energy and manufacturing sectors where performance requirements are stringent and material specifications are non-negotiable.
Certified for aviation interiors
Deployed in automotive seating
Mass transit interior applications
Commercially produced - not prototyped
Six properties that define the material.
BioPRO® is not characterised by a single attribute. The combination of natural composition, process chemistry and manufacturing capability is what makes it relevant to demanding industrial applications.
Natural collagen composition
BioPRO® is built on the collagen protein structure - a natural, high-performance building block with inherent tensile strength, thermal stability, and form-fitting capability. Natural composition is a functional advantage, not just a sustainability claim.
Process chemistry precision
Proprietary process chemistry controls the cross-linking, structure and surface properties of the collagen matrix. This precision determines the final material's mechanical characteristics and allows tuning for specific application requirements.
Form-fitting capability
BioPRO® technology supports complex form-fitting - enabling materials to be produced in shaped formats that conform to tooling and mould geometry. Critical for construction, automotive and aviation applications where flat sheet alone is insufficient.
Process-compatible by design
encircol materials derived from BioPRO® technology are designed for standard industrial processing - injection moulding, compression, shaped formats. Not a laboratory sample - a manufacturable material that fits existing production infrastructure.
Certifiable performance
Commercial deployment across aviation and automotive interiors means BioPRO® has passed rigorous certification requirements for those sectors. That certification history is the credibility foundation for industrial material development.
Relative environmental advantage
Starting from a collagen by-product rather than a synthetic or virgin resource means the material carries a lower embodied carbon potential relative to a range of incumbent formats - subject to formal LCA of each specific application.