About Carville Plastics

Carville are your specialist contract manufacturing partner for engineering plastics. Our core competencies are heat treating, high precision CNC machining, polishing (including vapour), and diffusion bonded manifolds, microfluidics and fabrication of plastics. We support clients from concept prototypes through to series volume production.


Established in 1928, Carville has built up an unparalleled wealth of experience and has a strong reputation for innovation. This includes pioneering diffusion bonding in the 1960s, the first bonded medical manifold in 1980, microfluidics machining and bonding, high accuracy diffusion bonding and encapsulation of various materials.  We have a high level of expertise in CNC turning and milling with a broad range of state of the art equipment.  See our Timeline for more information.


First ISO 9001 accredited in 1992, Carville is now ISO 9001:2015 certified and experienced meeting the ISO 13485 requirements of our clients including full traceability, reports and CMM data.  We also support FDA and notified bodied un-announced audits of our facility and processes as we supply many critical components and assemblies for our clients’ medical devices and IVD systems. See Delivering Quality for more information.

Diffusion Bonding

One specialist area is High Accuracy Diffusion Bonding (HADB) of materials such as Acrylic/Plexiglas (PMMA) and Ultem (PEI) to produce multi-layer fluidic manifolds. These are often used in medical, life science and beverage processing applications. We also produce complex microfluidic bonded chip solutions incorporating many features such as mixing chambers, reagent reservoirs, capillary action channels and optical analysis windows.

Based in the South East of the UK, we serve a global client base in the USA, Europe, Asia and Australasia.