Investigation of Curing Temperature Influence on Gloss and Color Parameters of Pre-Painted Coils

Paint is a coating that is applied to any object to give color or to protect it. It is a chemical component that protects against physical and chemical effects by forming a film layer on the applied surface and provides decorative appearance.Polyester paints, being topcoats that can be used both indoors and outdoors, are the most commonly used and most economical option in coil coating processes. They can be applied with wide brightness alternatives and color options. Brightness and color may vary depending on production parameters.In this study, the effect of curing temperature on color and gloss of polyester topcoat RAL 3004, RAL 5010, RAL 9002 and RAL 9006 dyes were investigated. Reatec temperature-inductors (PMT tape) for curing control, Erichsen Paint Borer 518 MC for dry film thickness controls (with drill no 2 blade), BYK TRI-GlossMaster (60 °) for gloss control, X-Rite Ci7800 (for color control) CIELab, D65 / 10 °, d / 8 Geo.) devices were used.As a result of this study, the increase in temperature shows decrease in gloss, while the increase in temperature shows different characteristics in different colors.