Strictly grasp the construction of exterior wall coating seiko before work

The quality of the exterior wall coating is like a person's first impression. Good image can make a big improvement. Exterior wall coating is a strict engineering construction, not only requires metope paint beautiful, also requires a standard metope paint quality. The following will give you explain the relevant contents of exterior wall coating construction technology, so that you can more clearly understand the specific process of exterior wall coating construction. 1 first of all, the construction conditions. To ensure the grassroots alkaline ph value is less than 9, humidity is less than 8%. 2. Ensure metope smooth, clean, no water seepage, the phenomenon such as crack, blister, empty drum, no pulverization loose materials, grease and other impurities, solid Angle, Angle of Yin and Yang line. 3. Due to the exterior wall paint is water-based paint, more strict to the requirement of construction conditions. Environmental humidity is generally not more than 85%, construction and maintenance temperature should be higher than 5 ℃. Because the humidity is high, paint film is hard to dry, not film, if the temperature is too low, it is easy to cause film pulverization and cracking. 4. The construction of exterior wall coating must also consider the weather factors. Within 12 hours before paint may not rain, to ensure that the basement is dry. Within 24 hours after brushing your teeth may not rain, so as not to damage the paint film. Second, the construction method 1, repair the empty drum: if it is local empty drum, only injection of low viscosity epoxy resin; If there is a large hollow out, all hollowed part should be removed, and new build at the grass-roots level. Clearance: for small cracks, use putty to repair. After drying, cement sand paper can be used to polish them. For larger crack, cleaned up first, then do the waterproof layer, then fill in the cement mortar. Hole: 3 mm holes available under polymer cement base surface be bored with child make level, more than 3 mm holes with cement mortar repair, 2, clean the mortar used shovels and scraper to remove; Can use broom and brush cleaning dust. Mould available outdoor high-pressure water cleaning, and use clean water to rinse and dry. Use neutral detergent to remove oil and grease. 3, be bored with child, must ensure the quality of local scraping putty putty, construction of thin, not thick brush. In addition, if the conditions of metope is good, be bored with child should not be used. 4. Smooth with sanding machine or coarse cloth polishing first, and then with a polishing cloth. Should pay attention to the basal surface or before polishing putty dry completely. 5, blow be bored with child blow be bored with child when the uniform application of force, to master the inclination of the tool, to ensure that the putty full uniform. 6. Primer paint should be in strict accordance with the provisions of the ratio of dilution, to ensure uniformity. Primer should be evenly from top to bottom, to ensure no leakage. 7. Paint before the paint for the first time for the first time, coating the surface dry and hard. The main purpose is to improve the surface paint covering power and adhesion, add fullness. Construction shall be carried out from top to bottom. 8. Apply the second paint the second layer of paint only on the first floor paint daub the daub after 24 hours. Second level lacquer main adornment effect, reduce the environmental damage to metope. Second, paint should besmear to brush evenly. After the construction, should maintain colour and lustre is consistent, without prolapse and leakage phenomenon. Third, the construction is completed, the exterior wall paint quality requirements for process quality has strict requirements: 1. There is no leakage, seepage, off powder, the phenomenon such as peeling, alkali resistant, bit color. 2. Overall required paint color consistent and uniform density. 3. Without prolapse, pimples, brush marks, etc. Exterior wall coating construction process is very complex, but all decorate owner should firmly grasp the construction of exterior wall coating method, so as not to decorate a company to cut corners, affect construction quality.