外墙涂涂料施工（Exterior wall coating construction）.docVIP

外墙涂涂料施工（Exterior wall coating construction） 2.1 construction technology Repair, cleaning, filling putty, putty, local flattening, glass fiber cloth, with full Guanizi, flattening, primer construction and finish the construction, the first time second times to finish the construction operation method 2.2 A, repair: applying for matrix angle loss, holes and other defects using 1:3 cement mortar (or polymer cement mortar repair). The following specific practices such as: hollowing large area (more than 10cm2) will eliminate all parts of hollowing, hollowing, clean up, re do the grassroots, if local Konggu (less than 10cm2), with a low viscosity epoxy resin injection repair. The gap - small cracks using Putty Repair (repair requirements and number of thin not thick brush), dry sand draw; for large cracks, the cracks can be cut into a V shape slot, clean up after a waterproof layer, and then filling the 1:2.5 cement mortar, dry cement with sandpaper burnished. The hole below the surface below 3mm primary holes, using polymer cement putty for leveling, holes larger than 3mm by cement mortar repair to be dry. In addition to the surface of the cement mortar is new, such as the urgent need for brushing, the concentration of 15%-20% in zinc sulfate solution or Zinc Oxide brushing on the cement mortar surface several times after drying to remove from the surface of the powder and the floating sand can be painted. B, cleaning dust, powder, washing: using high pressure water, brush, broom, grease, use a neutral detergent; mortar -- shovel, scraper removed; mold - Outdoor high-pressure water rinse, rinse with water. C, filling putty, putty local: if the wall is smooth, can not use putty putty; easy to batch requirements in addition to easy sanding, also should have good strength and durability, in fill, local Guanizi construction requirements, should be thin but not thick brush group. Requirements should have better adhesion putty, bond durability and water resistance. Use the pu