Torr Seal epoxy resin conveniently seals leaks in any type of vacuum system or component. It is solvent-free and can be used at pressures of 10-9 Torr (mbar) and below, and temperatures from -45°C to 120°C (bakeable temperature). Varian Torr Seal Vacuum Equipment High Torr Seal vacuum epoxy is packaged in two separate tubes; part A - Base Resin (82 gram tube), and Part B - Hardener (36 gram tube).