Process vacuum

Degassing

Evacuation and filling of liquids

Evacuation of molds

Evaporation/crystallization

Filtering of liquids

Leak testing

Vacuum drying

Vacuum for instrument calibration

Vacuum forming

Vacuum lamination/bagging (vacuum infusion)

During the manufacturing of laminated products like veneer sheets and plastic hull of a a boat, vacuum is used to eliminate bubbles and thereby increase the material strength.