SGI Composites

SGI Composites is a leading UK manufacturer of advanced composite solutions, offering bespoke fabrication services for a diverse range of industries. With deep expertise in GRP and sustainable FRP technologies, we design and produce custom composite products including tanks, components, access platforms, bund linings, vehicle parts, architectural features, and industrial safety systems.

Our in-house manufacturing capabilities allow for precise engineering, ensuring every product meets strict standards for durability, chemical resistance, and sustainability. From initial concept through to completion, we provide customised solutions that improve safety, efficiency, and long-term performance, positioning us as a trusted partner for innovative composite manufacturing.

Our Products & Services Includes:

Component Manufacturing

With a strong focus on precision and innovation, we specialise in the custom manufacture of GRP and FRP components, creating tailored solutions to suit the specific requirements of each project. From complex structural elements to specialised industrial parts, our GRP expertise delivers high strength, lightweight performance, and excellent resistance to harsh conditions. For architectural, transport, or industrial uses, we work closely with clients to produce durable, high-quality components that ensure lasting reliability and efficiency.

Enclosures & Housings

We design and manufacture high-performance GRP enclosures and housings that deliver strong, weather-resistant, and corrosion-proof protection for essential equipment and infrastructure. Built to endure harsh environments, our custom composite solutions combine durability, lightweight design, and excellent insulation. For industrial, electrical, or specialist uses, we collaborate with clients to develop tailored systems that provide long-term reliability, security, and efficiency.

Protective Linings & Coatings

We specialise in industrial GRP protective linings and specialist coatings, providing high-performance solutions for chemical containment, corrosion protection, and structural durability. Our custom GRP linings create a seamless, long-lasting barrier against harsh substances, making them ideal for bunds, tanks, pipelines, and industrial flooring. Designed for challenging environments, our coatings improve safety, extend asset life, and reduce maintenance costs, with each solution tailored to meet specific industry requirements and ensure full compliance.

At SGI Composites (formerly Sui Generis), we are committed to delivering high-quality, precision-engineered solutions, with experienced professionals who take pride in their work from design through to installation. We focus on customer satisfaction, with a strong reputation for reliability, craftsmanship, and long-term client relationships. Health and safety is central to every project, with strict adherence to site-specific procedures across all environments, from small facilities to high-risk sites. Fully accredited with certifications including Achilles, Constructionline, and RISQS, we consistently meet and exceed industry standards for quality, safety, and environmental performance across all sectors.

We specialise in sustainable, high-performance FRP and GRP composite solutions designed for long-lasting performance. Whether you need bespoke fabrication, advanced linings, or durable structural components, our expert team delivers safe, reliable, and cost-effective results—on time and within budget.

With decades of experience, in-house production capabilities, and a strong focus on customer needs, we are trusted by businesses throughout the UK and internationally. When you get in touch, it’s more than just an enquiry—it’s the beginning of a dependable, long-term partnership.