General knowledge of coating: construction organization design of elastic jacquard exterior wall coating

Key tips: 1 Project overview and application materials 1、 Project Overview: Project address: built-up area: Floor condition: Current situation of external wall: new cement mortar wall Project content: one primer and three coats of elastic exterior wall coating 2、 Application coating system and material introduction According to the current situation of the external wall of the building, we recommend the following coating system: Base surface treatment → → apply external wall putty for 2-3 times → → Polish → → roll coat external wall primer → → roll coat elastic intermediate material once / spray Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings news: 1 Project overview and application materials 1 Project overview: project address: building area: floor situation: exterior wall status: new cement mortar wall project content: elastic exterior wall coating batch one primer three coatings 2 Application coating system and materials introduction according to the current situation of the building exterior wall, we recommend the following coating system: Base surface treatment → → apply external wall putty for 2-3 times → → Polish → → roll coat external wall primer → → roll coat elastic intermediate material for one time / spray relief for one time → → roll coat elastic finish paint for two times → → clean and maintain 3、 Application material description: 1 The external wall putty is suitable for the scraping and coating of the external wall of the building, forming a smooth and delicate surface on the surface of the building, with the characteristics of good water resistance, fine and easy to be scraped, and strong adhesion 2 Sanyin exterior wall sealing primer this product is an exterior wall primer developed by Sanyin company based on acrylic copolymer Usage: it is suitable for sealing effect on masonry, cement, concrete and cement mortar Its performance features are excellent permeability, alkali resistance, waterproof and breathability, strong adhesion, and can enhance adhesion of coating 3, three silver elastic middle layer is made of high quality elastic emulsion as base material, rutile titanium dioxide, auxiliaries and weather resistant pigment Product; application: it can be ideally used in the middle coating of plastering surface, concrete, masonry building, cement mortar surface and other building external walls; performance features: good durability, outdoor service life up to more than 10 years; strong adhesion, not easy to peel and Blister; good waterproof and air permeability; anti mold, anti algae, anti alkali; water, non-toxic, tasteless; good leveling, easy construction Resistance to base crack 4, elastic surface is coated with elastic emulsion as base material, it can be used as elastic cover and elastic flat coating Performance characteristics: it can effectively resist the cracks in the base layer, with good pollution resistance; it has excellent self-cleaning function, good color development and hydrophobicity; it is waterproof, mildew proof, algae resistant and alkali resistant; it has strong adhesion and is easy to construct 2、 Construction scheme I construction steps: Construction of existing scaffold of the project; protection of ground guardrail of doors and windows; two times of putty construction and polishing after construction; roller coating of exterior wall sealing primer; roller coating of one layer of elasticity; roller coating of two layers of elastic surface; hole repair after scaffold removal 2、 Specific operation methods of putty treatment and one primer and three coating construction base treatment application products - external wall putty 1 The base shall be firm, solid, dry, flat, clean, free of floating dust, oil mark and residual glue; 2 When there are impurities such as chalking, whitening, laitance skin, dust, grease and film remover on the base surface, they shall be cleaned; 3 If the base course is moldy, it must be removed and cleaned with mould washing water and then washed with clean water; 4 If the base course is hollowed out, it shall be removed and leveled; 5 Doors and windows, ground, guardrail and water pipe shall be protected with special protective materials; operation method: apply the external wall putty once or twice, and polish after it is flat and dry; Primer: roll coat one layer of exterior wall sealing primer, which shall be uniform and shall not be missed; intermediate coat: roll coat one layer of elastic intermediate coat; surface coat: roll coat two layers of elastic surface coat, which shall be uniform and shall not be missed; The first putty does not need to be polished after drying, as long as the putty pimples are removed and then the second one is applied, so that the firmness of the putty will be better The putty on the external wall should be polished within 24 hours after drying, otherwise it is difficult to polish, and the primer should be evenly brushed If it is omitted, the surface coating will cause color difference, and the roller coating surface should be uniformly thin; The roller is coated with elastic coating The size of the texture should be selected, and the corresponding foam roller should be selected During the roll coating process, the texture should be uniform Avoid strong wind and apply elastic intermediate coating on the sunny side instead of adding water Once the water is added, the viscosity of the coating will become low, resulting in the corresponding change of the texture effect, which can not achieve the expected effect The protective materials of the door and window edges will be removed immediately after the intermediate roller is finished The intermediate roller is used to coat the elastic surface, and water can not be added, so as to avoid damaging the function of the coating itself The roller coating should be uniform and can not be missed Because the coating surface itself is uneven, it is easy to have missed coating and uneven color Special attention shall be paid during the construction 3、 Construction items: 1 Construction method: use long or medium wool roller for construction, depending on the situation of base course; 2 The base course temperature and ambient temperature are between 5 ℃ - 40 ℃; 3 The moisture content of base course is less than 8%, pH value is less than 9, and humidity is less than 75%; 4 Coating area: theoretical coating value, elastic medium coating is between (0.5-1.0) kg / m2, Depending on the size of texture, the surface coating: (0.25-0.3) kg / m2 times; drying time: 3H / 25 ℃ for surface drying, 24h / 25 ℃ for actual drying and 5h / 25 ℃ for recoating interval 4、 Precautions: 1 In the construction process, the smooth passage and the safety of pedestrians shall be considered; 2 In the construction of putty, primer and surface coating, the reasonable interval time shall be paid attention to, and it is forbidden to construct the next one before it is completely dry; 3 After the coating is completed, it shall be cleaned and cleaned carefully, especially the easily polluted parts such as doors and windows, water pipes and guardrails; 4 Before each process, the floating ash and sundries on the base surface shall be cleaned to ensure that the base surface is clean 5 In the process of construction, pay close attention to the weather changes 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,