An excessive baking experiment was carried out for comparing the thermal resistance of the coating films made from the matting resin and epoxy-MCA type resin with low gloss, the result verified that the former was superior to the latter in the thermal aging resistance. 同时,用这种消光树脂制得的粉末涂料涂膜与环氧树脂-MCA型低光泽粉末涂料涂膜进行耐过度烘烤性能的实验比较,发现其具有较好的耐热老化性能。