Coating technology: interior wall coating construction technology

Key tips: I construction preparation 1 The materials, finished products, semi-finished products, etc required for this sub project shall be provided with material qualification certificate according to the quality standard requirements of the materials, and shall be retested by sampling on site They can be used only after they are qualified 2 The reserved holes for water heating, ventilation, air conditioning, equipment installation and other disciplines have been sealed and installed 3 The iron parts of the formwork screw on the concrete ceiling have been cut off, the exposed reinforcement defects of the structure have been treated, and the expansion and contraction formwork of the concrete components have been removed and repaired in place 4 Wall plastering Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: 1 Construction preparation 1 The materials, finished products and semi-finished products required for this sub project shall be provided with material qualification certificate according to the quality standard requirements of the materials, and shall be retested by spot sampling, and can be used only after they are qualified 2 The reserved holes for water heating, ventilation, air conditioning, equipment installation and other disciplines have been sealed and installed 3 The iron parts of the formwork screw on the concrete ceiling have been cut off, the exposed reinforcement defects of the structure have been treated, and the expansion and contraction formwork of the concrete components have been removed and repaired in place 4 The wall plastering has been completed and passed the concealed acceptance The wall plastering layer can only be puttied after 14 days or drying (and must pass the handover and acceptance before construction) 5 The tools used in this sub project are ready 2、 Construction process and process flow 1 Process flow ① ceiling putty scraping process flow: base acceptance (process handover inspection) → base cleaning → snapping line at the bottom of structural plate as punctuation point → straightening the internal corners around the ceiling → local leveling of the ceiling → full putty scraping once → polishing → full putty scraping of the surface layer → sweeping and repairing the head ② The technological process of wall puttying: base acceptance (process handover inspection) → base cleaning → reserved line snapping on the foot line → full puttying once → polishing → full puttying on the surface layer → skirting line pasted with masking paper → skirting line brushed with grey paint → finishing 2 Construction technology ① Base acceptance: during base acceptance, the surface shall be kept flat and clean without floating sand and oil stain For the parts with too large concave and convex surface, the mortar shall be removed first to make up The scaffold hole shall be blocked tightly and trowelled first For the pipes, switch boxes and other parts of the water heating and ventilation pipes passing through the wall or ceiling, the mortar shall be used to block up, level and clean up Check whether the plastering layer on the wall has hollowing, cracking The vertical, flat and square internal and external corners of the wall shall be corrected in time if any ② Base cleaning: firstly, the nails and iron wires on the ceiling shall be chiseled out before the ash is batched, the concrete joints shall be chiseled, polished and leveled, and the exposed nails and iron parts shall be sealed with antirust paint Before plastering the wall, the floating sand on the wall shall be removed first, and the joint between the door and window and the wall shall be cleaned in place If the structural surface error is more than 2cm, the main team is required to chisel ③ Before plastering the ceiling, the straight control line must be snapped on the wall at the inner corner of the ceiling to ensure that the inner corners around are smooth and straight The control line with foot line shall be snapped on the wall and the beautiful paper shall be pasted ④ Firstly, according to the snapped control line, use a 500mm trowel to straighten the internal corners around and the high and low parts of the board surface If the height difference is more than 8mm, use the anti crack mortar to level for several times, and the leveling width from the internal corner to the ceiling shall not be less than 500mm ⑤ The thickness of the first batch of ceiling ash shall be controlled at 2-3mm, and the construction shall be carried out in sequence parallel to the long side of the room The construction of the second layer of putty must be carried out after the bottom layer of putty is completely dry and polished The thickness of the surface layer shall be controlled at 1-2mm Large plates shall be used for full batch in the direction parallel to the short side of the room At the same time, when the putty is 60-70% dry, rubber scraper shall be used to press and polish the surface to ensure that the surface layer is smooth and smooth, with straight lines and uniform colors ⑥ The construction process of wall ash batch and ceiling ash batch is the same, that is, the construction direction is different, the thickness of wall ash batch for the second time is controlled within 2-2.5mm, the first time is constructed horizontally, and the second time is constructed vertically ⑦ 10cm under the ceiling of the kitchen and bathroom, paste the masking paper ceiling putty to 10cm under the ceiling ⑧ The ceiling and wall plastering shall be carried out in strict accordance with the above construction process ① ~ ⑥ Meanwhile, attention shall be paid to the overall construction procedure The ceiling must be first followed by the wall, and the first layer of putty between the ceiling and the wall shall be polished before the surface putty construction The surface putty construction shall not be carried out until the wall plastering, floor, door and window installation works are completed During the surface layer construction, there must be protection measures for other professional finished products The finished floor shall be covered with color strip cloth for protection The door and window frames shall be pasted with adhesive tape Cross contamination is strictly prohibited All internal and external corners must be smooth and straight with sharp internal and external corner trowel The internal and external corners of the floor doors and windows shall be pulled through to maintain the same geometric dimension 3、 Quality requirements and inspection standards 1 The materials, finished products and semi-finished products required for this sub project shall be provided with material qualification certificate and retest shall be carried out on site, and retest test report shall be provided ① The putty surface layer shall be solid and firm, and the hand touch surface layer shall be smooth and flat without powder dropping, peeling and cracking ② The putty surface layer shall be flat and the flatness shall be controlled within 2mm; the internal and external corners shall be square and controlled within 2mm; the internal and external corners shall be straight and flat, and the flatness shall be controlled within 3mm, and the internal and external corners shall be free of water waves; the boundary between the foot line and the ceiling and the wall shall be straight and the flatness shall be controlled within 3mm, and the surface layers of different materials under the boundary line shall not be cross polluted, and the boundary line shall not be crossed The lower part shall be flat and smooth without burr ③ The putty surface of this sub item shall be clean around all doors and windows, switch panels, lamps, pipes, etc., without burrs, and shall not pollute the floor and other professional related facilities 4 The skirting line shall be made after the completion of the ground During the skirting construction, the color separation shall be obvious and the line mouth shall be straight 4、 Safety production and civilized site construction 1 Before construction, check whether the scaffold is safe ① Before each shift, check whether the scaffold and high stool are firm and stable, and deal with the unsafe places immediately And often clean the debris on the scaffold board ② The tool materials placed on the scaffold board shall be stable ③ Before construction, the mechanical equipment used shall be inspected to meet the construction capacity requirements and operate normally All electrical equipment must have absolutely reliable insulation device and good grounding ④ The floor ash shall be removed and cleaned in time, and the construction site shall be cleaned after the completion of the work 2 Finished product protection ① pay attention to the finished product protection of other professional facilities in the construction process, such as the line pipe embedded in the wall, the line box water pipe, the finished waterproof layer, thermal insulation layer, etc ② The floor construction must be covered with colored cloth before construction to avoid cross contamination Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant 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