Plastic Extrusion Companies UK

Plastic extrusion is a continuous manufacturing process that produces profiles, tubes, rods, sheets, films, and coatings in thermoplastic materials. The process works by forcing molten polymer through a shaped die to produce a continuous length of material with a consistent cross-section, which is then cooled, cut to length, and packaged. UK plastic extrusion companies serve construction, automotive, electrical, medical, packaging, and general manufacturing sectors.

This category lists UK plastic extrusion companies offering subcontract and own-brand extrusion services.

Types of Extrusion

Profile extrusion produces custom cross-sections including channels, trim, seals, glazing bars, cable trunking, edging strips, and complex multi-chamber profiles for the window and construction industries. Tube and pipe extrusion produces round and shaped tubing for medical, pneumatic, hydraulic, and industrial applications. Sheet and film extrusion produces flat material for thermoforming, packaging, and fabrication. Co-extrusion combines multiple materials in a single profile — for example, a rigid structural core with a flexible sealing lip.

Specialist extrusion processes include blown film extrusion for packaging films, cast film extrusion for stretch and cling films, wire and cable coating extrusion, and fibre extrusion for synthetic textiles and industrial monofilaments. Some UK extruders also offer in-line downstream operations such as punching, drilling, printing, cutting, and coiling integrated into the extrusion line.

Materials

UK plastic extruders process a wide range of thermoplastic materials including PVC (rigid and flexible, the dominant material for construction profiles), polyethylene (HDPE, LDPE, and LLDPE for pipes and films), polypropylene, ABS, polystyrene, polycarbonate, nylon, TPE (thermoplastic elastomers), and high-performance polymers for specialist applications. Many extruders can process customer-specified compounds and colours, or work with their own compounding capability to develop bespoke formulations.

Custom Extrusion Development

Developing a new extruded profile involves die design, material selection, process optimisation, and qualification — typically a four-to-twelve-week process depending on complexity. UK extruders with in-house die design and manufacturing capability can shorten this timescale and offer greater control over the development process. Extrusion die costs are significantly lower than injection mould tool costs, making extrusion an economical process for bespoke profiles even at moderate volumes.

Find UK plastic extrusion companies in this directory by extrusion type, material capability, and sector experience.