BOSTEC ENGINEERING LIMITED

Bostec Engineering Limited is a specialist designer, prototyper and manufacturer of precision metal seals for the most demanding scientific and industrial environments. Drawing on over three decades of experience, the company creates leak‑free sealing solutions that can withstand ultra‑high vacuum, cryogenic, radiation‑rich and high‑pressure conditions – from semiconductor fabs and nuclear facilities to medical devices, rockets and particle‑accelerator beamlines.

Their core offering centres on five families of metal seals, including the world‑renowned CF gaskets, XE‑Seals®, H‑Seals® and compact Shoulder Seals. With 46 stock sizes ranging from CF‑1 to CF‑20 and the ability to machine exotic alloys such as nickel, titanium and niobium, Bostec delivers both off‑the‑shelf and fully custom‑designed components. A unique advantage is their in‑house ultra‑high‑vacuum and force‑testing laboratory, where every seal, flange and assembly is validated under bake‑out, cryogenic, vibration, seismic and shock conditions before the customer ever builds the final system.

Bostec serves organisations that cannot afford a single seal failure – semiconductor manufacturers, nuclear power plants, medical equipment makers, aerospace contractors and research institutions – providing compact, low‑force, high‑reliability solutions that are tested, proven and ready for production.