Bostec: Mastercrafting Precision UHV Metal Seals for OEMs and Science Research

Custom and stock UHV metal seals for Particle Accelerators, Beam Lines, Fusion, Outer Space, Oilfield and SEMI.

C-seal Drop-in Replacement

100% reliable
0.75″ to 20″ OD
Custom sizes in 4-6 weeks

Custom Engineered Seals

Standard CF Gasket Sizes in Stock

CF Gaskets

Custom Engineered Designs


Diamond Seals

X-Energized Seals

Multi-Sided Seals

Exotic Materials

Bostec Full Metal Seals Force Testing Laboratory

Force Testing

Large Scale Projects

Particle Acccelerators

Nuclear Power



HiRim® Technology

HiRim® CF Gasket

A Radically Better CF Gasket, Designed for Super-UHV