Common knowledge of coating: should the base of coating construction control the pH value? How to measure the pH value of base course?

Core tip: the basic level of coating construction requires the control of pH? The construction base of building coating is often made of mortar and concrete, in which the lime and cement are very alkaline, mainly due to the large amount of calcium hydroxide With the volatilization of base moisture, calcium hydroxide is brought to the surface and reacts with carbon dioxide in the air to form neutral calcium carbonate, which makes mortar and concrete tend to be neutral When the base course is dry, the alkalinity is reduced correspondingly, which can meet the requirements of coating construction If the base course is too alkaline, it will affect the adhesion of the coating, resulting in discoloration and peeling off of the coating Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: paint construction base requirements to control pH? The construction base of building coating is often made of mortar and concrete, in which the lime and cement are very alkaline, mainly due to the large amount of calcium hydroxide With the volatilization of base moisture, calcium hydroxide is brought to the surface and reacts with carbon dioxide in the air to form neutral calcium carbonate, which makes mortar and concrete tend to be neutral When the base course is dry, the alkalinity is reduced correspondingly, which can meet the requirements of coating construction If the base course is too alkaline, it will affect the adhesion of the coating and cause quality accidents such as discoloration and falling off of the coating Therefore, the pH of the base course must be controlled How to measure the pH value of the base course? Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,