Can coating system

摘要

A coating apparatus is provided which comprises a can defining an internal chamber. A hollow sleeve which itself defines an internal space is located within the chamber. The hollow sleeve defines with the can an annular space. A plurality of perforations are located in the wall of the hollow sleeve for communicating the annular space with the internal space defined by the sleeve. A lid for enclosing the can and the hollow sleeve is secured to the can for forming a closed compartment.