scope:

General

This technical bulletin provides information on the production and post-processing of thermally sprayed coatings on plastic components. Due to the extremely poor heat resistance of most plastics and the relatively low bonding strength of sprayed coatings compared with coatings on conventional metallic substrates, additions and further explanations are needed to supplement the remarks in DIN EN 13507, DIN EN ISO 14924, DIN EN 15520 and Technical Bulletins DVS 2301 and DVS 2311 regarding the coating of plastics.

This includes information on both the production and structure of fi bre-reinforced compounds, as well as data relating to the permissible temperature load of common matrix systems. Furthermore, notes on possible methods of improving the bonding strength of thermally sprayed coatings and on post-processing using machining processes are also provided.

Due to the sheer scale of commercially available plastics and the broad range of material properties, only the most common polymer types can be considered in this technical bulletin. However, many of the notes in this technical bulletin can also be applied to other types of plastic. The user should also undertake a detailed study on a case-by-case basis in the relevant scenarios.