This is the Varian Torr Seal System Applicator Gun, ONLY used with Torr SealŪ Low Vapor-Pressure Epoxy Resin Sealant.

Torr Seal quickly seals leaks on any type of vacuum system or component. Torr Seal is solvent-free and can be used at pressures of 10^-9 torr or below and at tempuratures of -45 °C to +120 °C (system baking temperature). Additionally, Torr Seal permits leak-checking immediately after curing, and it bonds with many materials, including metals, ceramics, and glass.

The Torr Seal Mixing System provides a systematic and scientific way of mixing the Torr Seal epoxy and resin in exactly the correct proportions. The complete mixing system (Ideal Part Number P102619, Varian part number 9530002) includes an applicator gun, a pre-measured Torr Seal 2 oz. cartridge, and three (3) epoxy/resin mixers. The applicator gun easily puts a uniform bead of mixed Torr Seal on any surface.