Coating

Film

In film restoration, a process which involves coating either or both surfaces of a film with lacquer. Can also be a thin deposited surface on a lens, used to reduce flare. Important in projection and optical printing.

Coating motion picture film fills up scratches and presents a new smooth surface, so that in copying the visibility of scratches is reduced. Now superseded by wet gate printing.

Audio & Video

Also refers to the application of magnetic layers and back-treatment for the manufacture of magnetic tapes and discs.