Abstract:
A process for forming a coating of a thermoplastic polymer on a hollow object formed of a low electrically conductive material is described, characterized in that the thermoplastic polymer has its maximum IR absorption between 1300 and 1900 nm and/or 2800 and 3000 nm, is applied electrostatically as a powder to the object while the objet is held at a temperature below the melting point of the thermoplastic polymer, and thereafter the object is heated by IR radiation to form the coating.