Update:What is the gloss of paint related to? Let ZHEJIANG RUICO ADVANCED MATERIALS CO., LTD. discuss.
1. The particle size o...
1. The particle size of the pigment in the paint and the dispersibility in the binder will affect the gloss of the paint film. The finer the pigment fineness, the better the dispersion uniformity in the base material, which helps to form a smooth and smooth paint film.
2. The pigment-to-base ratio in the paint affects the gloss of the paint film. The gloss decreases due to the weakening of specular reflection by the pigment particles in the paint film, and the gloss decreases gradually with the increase of pigment volume concentration (P.V.C).
3. When the pigment-to-base ratio is certain, the greater the oil absorption of the pigment, the lower the gloss.
4. Different pigments absorb and reflect light differently. Because black paint completely absorbs light, while white paint completely reflects light, black paint shows higher gloss than white paint.
5. The type of solvent used in the paint directly affects the speed of its volatilization, and too fast or too slow will affect the smoothness of the paint film and reduce the gloss of the paint film.
6. The gloss of the paint film surface depends not only on the smoothness and roughness of the paint film surface, but also the incident angle of the light will also affect the gloss. The larger the incident angle, the higher the intensity of the reflected light.
7. The standard plate is the main benchmark for measuring and calculating the gloss of the paint film, which will directly affect the accuracy of the gloss determination of the sample, so it should be carefully preserved to prevent surface damage.
8. In the medium-gloss area, the visual gloss and the instrument-measured gloss have an approximate linear relationship; in the high-gloss area, the visual gloss is often lower than the instrument-measured gloss due to the sharpness of the reflection image; in the low-gloss area, due to the pigment (matting agent) ) The amount of added and the roughness of the surface of the paint film will make the visual gloss higher than the result measured by the instrument.