Coating technology: Construction Technology of waterborne pure acrylic elastic exterior wall coating

Core tips: 1 Construction base treatment of waterborne pure acrylic elastic exterior wall coating (1) When the exterior wall coating is applied to the original building, the bonding strength test shall be carried out for the exterior facing, and the bonding strength shall be ≥ 1.0MPa In case of hollowing, delamination and other phenomena on the base surface, the original external wall facing layer shall be removed, and the exposed base wall shall be plastered again If it is polluted by oil or floating ash, it shall be removed, and the interface agent shall be fully applied (2) The moisture content of the base course is less than 10%, and the pH value is less than 9.5 2 Construction conditions of waterborne pure acrylic elastic exterior wall coating (1) The construction of exterior wall coating shall be carried out after the acceptance of basic wall works 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: 1 Construction base treatment of water-based pure acrylic elastic exterior wall paint (1) when the exterior wall paint of the original building is applied, the bonding strength of the external facing shall be tested, and the bonding strength shall be ≥ 1.0MPa In case of hollowing, delamination and other phenomena on the base surface, the original external wall facing layer shall be removed, and the exposed base wall shall be plastered again If it is polluted by oil or floating ash, it shall be removed, and the interface agent shall be fully applied (2) The moisture content of the base course is less than 10%, and the pH value is less than 9.5 2 Construction conditions of waterborne pure acrylic elastic exterior wall coating (1) the construction of exterior wall coating shall be carried out after the acceptance of the basic wall works (2) Before the construction of exterior wall coating, the exterior wall door and window frames must be installed and accepted (3) The construction site shall be electrified and watered and the working environment shall be kept clean (4) The ambient temperature and the surface temperature of the base wall shall not be lower than 0 ℃; the wind force shall not be greater than grade 5 The most suitable construction temperature is 15 ℃ - 35 ℃ (5) In summer, it is not suitable to construct under direct sunlight Construction is not allowed in rainy days (6) Artificial scaffolds should be used for exterior wall coating construction, and holes and other sundries that hinder the construction should not be reserved on the wall 3 Construction method of water-based pure acrylic elastic exterior wall coating (1) comprehensively inspect the base surface, such as spatula traces, rough corners and edges, exposed nets and other phenomena, and repair them; if the wall surface is uneven, the putty shall be scraped and leveled The construction can only be carried out after the putty is completely dry (2) Construction method: roll coating, brush coating and spraying (3) The tools used in the construction shall be kept clean and dry After the construction, they shall be cleaned in time and immersed in water for reuse the next day (4) Before using the paint, use the electric hand-held mixer to properly mix to a stable and even state, and do not over mix (5) Use wall corner, deformation joint, dividing joint, back of downpipe or independent decorative line to divide the area The wall or independent wall in one area is painted at one time (6) The same batch of paint shall be applied to the same wall Each coat shall not be too thick, and the coating shall be uniform with the same color (7) Before the construction of main materials, the base surface shall be painted with a layer of colorless primer The dosage is 0.1-0.15kg/m 2 (8) The main material needs to be finished for two times: 5% - 10% water should be added to dilute the main material for the first time, and no dilution is needed for the second time The interval between two times of main material is more than 24 hours In case of exposed bottom, it shall be repaired within 2 hours Dosage: 0.3-0.4 kg / M 2 (9) After the main material construction is completed and placed for 24 hours, a layer of kl-tm-1 top coat shall be sprayed The dosage is 0.1-0.15kg/m 2 (10) According to the wall humidity, air temperature, the main material consistency and wind speed, the water can be adjusted appropriately (11) The same painting tools shall be used, and the applied lines shall be the same before and after, and the color shall be the same The construction coating wall shall be provided with rainproof and pollution prevention measures (12) A set of painting tools shall be used for a kind of color coating The interface shall be horizontal and vertical, and the two main materials shall not be interpenetrated together (13) After rain, the moisture content of the base course shall be checked The moisture content shall be less than 10% The test method is to stick a square plastic cloth on the wall with tape around the plastic cloth, and observe whether there is any water drop on the plastic cloth when the sun shines for about 1 hour If there is no water drop, the construction can be carried out, otherwise the construction cannot be carried out 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,