The two terms mean the same practical.
In both cases performing of the deposits of metal films on substrates of different nature.
The deposit may occur by thermal spraying or vacuum depending on the thickness or end uses (aesthetic applications).
For thin, the zinc deposit under vacuum is performed on dielectric films (capacitors), for shielding of electrical equipment against radiation EMF and RFI.
For zinc deposits thick, It is used for galvanizing spray with which are performed with ease zinc deposits up to 300 μ or even 500 µ, in cases where it is necessary to ensure protection against corrosion than 70 years, because the higher the thickness of zinc longer the duration of the artifact.
Such as zinc, sacrificandosi, protects the steel in various environments EN ISO 12944
