The method of utilizing color determining combining with scratch methods to determine whether the coating had been dried or not was investigated

which was proved to be stable and accurate through experiments.Based on this method

the results show that with increasing in size of refractory particle and decreasing in alcohol

phenol resin

F-80 added

the drying performance of the coating is improved.Therefore

the drying performance of coatings can be improved through controlling the component of coatings on the basis of other performances met.