Xinglong Garden Residential Building Exterior Painting Technical Solution
I. Types of Paint and Technical Parameters: (Consultation: 051588601117)
1. Type of paint: Water-based acrylic exterior paint.
2. Main technical parameters:
A. Emulsion: Pure acrylic emulsion, content 35-40%;
B. Pigment filler: Imported titanium dioxide;
C. Good water resistance and alkali resistance, can maintain more than 6 years without significant discoloration, no falling off, no blooming;
II. Brand Scope of Paints: Huarun, Chen Guang, Xia Guang, Chrysanthemum, Liao Ao, Dai Long.
III. Quality Grade:
1. The quality grade of exterior wall paint products is "Qualified".
2. The quality grade of exterior wall paint construction is "Qualified".
IV. Implementation Standards:
1. Complies with all indicators of Acrylic Exterior Wall Paint GB/T9755-2001, belongs to national or provincial/city famous brand products.
2. Complies with the requirements of the "Residential Decoration and Renovation Engineering Construction Standard" GB50327-2001 and the "Building Decoration and Renovation Engineering Construction Quality Acceptance Standard" GB50210-2001 related to chimney construction, maintenance, demolition, anti-corrosion desulfurization, steel structure anti-corrosion, and exterior wall plastering.
3. Complies with other relevant current national and industry standards.
V. Exterior Coating Scheme Requirements
The exterior coating effect should be consistent with the original pattern and style, maintaining overallness and coordination.
VI. Bid Product Quality Technical Requirements
1. Exterior Putty:
(1) The putty complies with the relevant provisions of the People's Republic of China Architectural Industry Standard "Architectural Exterior Putty" JG/T157-2004.
(2) Local deteriorated walls are treated with elastic putty after cleaning, and the overall application uses special exterior wall putty.
(3) The putty used must be a finished product, with product instructions, certificate of conformity, usage and mixing instructions, and approval from on-site supervision and the client.
(4) The plasticity and ease of painting of the putty used in the paint project should meet the construction technical standards, dry firmly, have certain strength, not powder, peel, or crack, and have good coverage for base cracks.
(5) The putty and the base should have strong bonding force, matching with the primer and topcoat.
2. Exterior Wall Paint:
(1) Primer: Water-based or solvent-based alkali-resistant paint, with good compatibility with the topcoat.
(2) Topcoat: All technical performance indicators should comply with the standard GB/T9755-2001 "Synthetic Resin Emulsion Exterior Wall Paint", with good compatibility with the primer.
(3) Technical bids should include quality certification documents of bidding brands, valid annual inspection reports, product agency authorization certificates.
(4) Paint should have good stain resistance and excellent washability.
(5) Paint should have good elongation and strong covering ability for surface cracks.
(6) Paint should have good adhesion and water resistance, alkali resistance, and aging resistance.
(7) The same batch of paint should have consistent color.
(8) Products entering the site must be well packaged, clearly marked, and come with complete factory qualification certificates and inspection reports.
VII. Exterior Wall Paint Process Requirements
1. Overall construction quality of exterior wall paint should reach "High-grade" according to the requirements of GB50327-2001 and GB50210-2001.
2. Before painting, paints should be mixed in batches according to the specified ratio in the product manual and used within the specified time. All paints should be thoroughly stirred before and during application.
3. The entire project should use paints of the same batch number, and each layer of paint should be uniform and consistently colored.
4. The working viscosity or consistency of the paint must be controlled so that it does not sag or show brush marks during application. No arbitrary dilution is allowed during application.
5. The next layer of paint must be applied after the previous layer has dried completely; each layer of paint must adhere firmly.
6. When applying different colored paints, different coloring areas should be protected to prevent cross-contamination.
7. When exterior painting is done in sections, boundaries should be along separation seams, wall corners, downspouts, etc.
8. Painting work should not be carried out under direct strong sunlight.
9. Other matters not covered shall be based on current national or industry standards.
VIII. Construction Plan
1. Construction Preparation
(1) Personnel: The construction team should establish corresponding institutions as required by the construction project, with clear responsibilities for the project manager, technical director, safety officer, quality inspector, etc. Main operators must be experienced and skilled workers. All personnel entering the site must receive safety and civilized construction education organized jointly by both parties before starting work.
(2) Site: The construction site should have operational conditions, including water and electricity supply in place, obstacles such as tree branches against walls and grape trellises removed, and no items placed on window sills or outdoor air conditioners.
(3) Construction machinery, tools, and supplies should be prepared before the specified start date and ready to begin work (putty, paint, and other engineering consumables can be delivered in batches according to the schedule and progress). Construction equipment should have a "Safety Inspection Certificate."
(4) Sample Building: Before construction, a sample building should be made according to design requirements, evaluated by the construction and supervising units, and used as the acceptance basis.
2. Process Flow: Rust-proofing of outdoor air conditioner brackets - Handling cracks, powdering, peeling, cracking, hollow drumming, rust stains, etc., on exterior walls - Cooling tower anti-corrosion; Roughening exterior walls - Chimney new construction and maintenance; Base cleaning - Base repair - Sanding - Full scraping of putty - Sanding - Applying primer - Local putty application - Sanding - Applying topcoat
3. Construction Operation Methods:
(1) Pre-treatment of outdoor air conditioner brackets and residual screws: Before handling existing wall coatings, first remove rust from the air conditioner bracket surface, smooth it with sandpaper, then apply rust-proof paint. Secondly, perform rust prevention treatment on the cut surfaces of residual expansion screws after the removal of burglar bars, and patch up the cutting points with putty.
(2) Carefully inspect the existing walls and paints for problems like cracking, peeling, falling off, hollow drumming, and rust spots, and handle them accordingly:
A. Powdered Walls: Remove peeled-off paint film and powdered layers, ensuring no missed areas and thorough cleaning of powdered layers. In severe cases, auxiliary machinery can be used.
B. Cracks and Cracking: Repair fine cracks and cracking with putty or other materials, then level with sandpaper after drying. For cracks over 2mm, grind the crack into a V-shape and fill with elastic putty.
C. Hollow Drumming: Cut away the affected area, remove dust, and repair with putty.
D. Wall Cavities: Cavities less than 3mm below the base surface are leveled with putty; those greater than 3mm are repaired with cement mortar and then sanded smooth after drying.
E. Rust Stains: Clean with weak acid solution, then rinse with high-pressure water. Severely affected areas may need removal.
F. Old Insulated Walls: For degraded insulated walls, completely remove the paint layer, repair smoothly without damaging the insulation layer.
G. Painting Behind Air Conditioner Units and Natural Gas Pressure Boxes: First sand, then paint.
(3) Roughening Base Treatment: After the above steps, roughen all old walls with sandpaper or wire brushes to enhance the adhesion of repair putty.
(4) Apply Exterior Wall Putty: Depending on the base flatness, apply one to two layers of exterior wall putty, sand smooth after drying, avoiding wave patterns or leaving marks. Sweep away dust after sanding.
(5) Apply One Layer of Alkali-resistant Primer: Stir the primer evenly; if dilution is needed, follow the product manual. Apply evenly, avoiding missing spots or excessive thickness. Sand smooth after drying.
(6) Apply Two Layers of Exterior Wall Paint: Dilute the topcoat according to the product manual and stir evenly. One person applies the paint uniformly with a roller brush, while another immediately levels with a brush to remove streaks and splashes. Prevent penetration and dripping. Start from the edges and finish each section in one go to avoid joints. After the first layer dries, apply the second layer.
4. Precautions:
(1) Verify the label before using the paint, stir thoroughly, and seal tightly after use.
(2) Color mixing is completed by the manufacturer or distributor to ensure color consistency. If color adjustment is necessary on-site, use designated pigments provided by the manufacturer and mix according to requirements by a dedicated person.
(3) Protect finished paintwork from cross-operation pollution. If stained, clean gently with a damp cloth; severely polluted areas require re-painting.
(4) Remove building number plates before construction.
(5) Keep mailbox areas intact, ensuring neat lines at joints without old coating traces.
(6) Paint rainwater and air conditioning drainage pipes the same color as the wall segment.
(7) Check weather forecasts before construction to avoid working before rain.
(8) Clean and store tools properly after use.
(9) Pay attention to fire prevention during storage and use.
(10) Cover windows, entrance doors, gutters, lawns, air conditioner units, and natural gas pressure boxes with plastic or waterproof fabric, removing covers immediately after construction.
(11) Determine water usage and drainage according to the specific situation of drainage facilities before and after construction, prohibiting sewage discharge onto lawns; clean up promptly after construction.
5. Safety Protection Measures:
(1) Contractors must have high-altitude operation certificates. Workers must be physically healthy and well-rested to ensure safe high-altitude operations.
(2) Check safety facilities and equipment before construction, avoiding risky operations.
(3) Prohibit wearing slippers, smooth-soled shoes, or high heels for high-altitude work.
(4) Strictly prohibit smoking where solvent-based primers, topcoats, and thinners are stored and used.
(5) Equip with necessary protective glasses, masks, and safety helmets.
(6) Electrical installations must follow electrician safety standards, prohibiting random wiring.
(7) Conduct regular safety education for all on-site personnel.
(8) Set up construction signs, warning signs, and polite reminders according to civilized construction requirements.
IX. Other Related Requirements:
1. Exterior wall paint manufacturers must possess ISO9001 quality system certification, Chinese environmental mark product certification, and valid quality inspection reports for bidding brands.
2. All other matters not covered shall follow current national standards, or industry standards if there are no national standards.
Exterior Wall Painting Company: Jiangsu Yuehua High-altitude Anti-corrosion Company's Exterior Wall Painting Department is an enterprise with Class I high-altitude operation qualifications, Class II anti-corrosion and thermal insulation qualifications, and Class I anti-corrosion construction qualifications. It has nearly twenty years of experience in high-altitude exterior wall painting. Especially adept at quickly and flexibly addressing complex and special environmental issues in exterior wall painting, it can swiftly handle related problems and has rich experience in exterior wall painting.
The company has been adopting high-altitude operations without scaffolding and continuous production, ensuring safe and civilized construction, saving costs for owners.
The company owns advanced spraying and testing equipment, well-trained engineers, research and design personnel, and first, second, and third-level project managers, along with a large construction team.
For more detailed information about high-altitude exterior wall painting, visit www.chinayancong.com
Consultation: Mr. Chen 015950205955
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