Coating knowledge: waterproof treatment steps for exterior wall

Core tip: the first step is to clean the base course The new and old surface course must be cleaned without sundries and dust, so as not to affect the bonding strength The base course shall be dry when the waterproof coating is applied Generally, it can be observed by experience and naked eyes, or covered with 1 m square plastic cloth, and exposed to sunlight for 1-3 hours Step 2: after the base cleaning process is completed, next, clean the dead corner, that is, the so-called internal and external corners, construction joints, expansion joints and other important parts for treatment, especially pay attention to strengthen the treatment of the drain hole, which needs to be painted with 2-3 times of waterproof primer Step three, be prepared 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: the first step is to clean the base course The new and old surface course must be cleaned without sundries and dust, so as not to affect the bonding strength The base course should be dry when the waterproof paint is applied Generally, it can be observed by experience and naked eyes, or covered with 1 m square plastic cloth, and exposed to sunlight for 1-3 hours Step 2: after the base cleaning process is completed, next, clean the dead corner, that is, the so-called internal and external corners, construction joints, expansion joints and other important parts for treatment, especially pay attention to strengthen the treatment of the drain hole, which needs to be painted with 2-3 times of waterproof primer The third step is to prepare waterproof roll, waterproof coating, base course coating and coating for bonding roll In order to improve the adhesion between waterproof roll and base course, the base course coating can be repeatedly painted, evenly painted, completely covered and fully penetrated into the concrete base course, so as to improve the bonding strength and shear strength Step 4: the waterproof coating must be proportioned according to the product instructions Step 5: proportioning according to the ratio of a: B = 2:1 The mixing time is about 3-5 minutes, and the mixture of components a and B must be stirred until the mixture is even Step 6: start to brush the evenly mixed waterproof coating according to the area to be painted on site The area of the base layer shall be larger than that of the coiled material, not more than 30 minutes Step 7: before painting the second coating, it is necessary to wait for the first coating to completely set before painting again After the first coating, it is about 4-8 hours before painting the second and third coating again The first coating thickness is 0.5mm, the second coating thickness is about 0.5mm and the third coating thickness is about 0.5mm The eighth step, when bonding the coil, the construction can only be carried out after the second coating is completely solidified 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,