METODO PARA A PRODUCAO DE REVESTIMENTOS EM PO RESISTENTES AO TEMPO NUM SUBSTRATO

摘要

A process for preparing weather-resistant powder coatings on metallic or non-metallic surfaces by applying a powder coating composition and then melting and curing, wherein a powder coating composition is applied which contains polyester resins in which the acid structural blocks are based only or mainly on aromatic dicarboxylic acids, their anhydrides and/or esters, and polyfunctional low molecular weight epoxides as cross-linking agents, and the melting and curing is performed by NIR radiation.