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The two-component solvent-based exterior wall paint made of high-quality fluorocarbon resin, additives and metallic pigments has excellent weather resistance, stain resistance, chemical resistance (acid, alkali, salt, etc.) ) has a service life of more than 10 years and is known as the king of coatings. 1. Base treatment
Inspect the entire base surface of the exterior wall point by point, and mark and treat areas such as falling off, looseness, and hollows.
Remove all loose and hollow parts of the original base surface to eliminate potential safety hazards. Then use the cracking treatment system to carry out substrate treatment according to the actual conditions of the substrate.
After partial repair, wash the entire surface with water to remove dust, oil stains and attachments. For firmly adhered oil stains and attachments, use fluorocarbon paint thinner to clean.
Use ~#emery cloth to polish and texture the surface to increase its surface roughness and enhance its interlayer bonding force.
2. Epoxy sealing primer coating
After the base layer has been cured for more than d and the moisture content is no more than %, mix the two-component epoxy sealing primer according to the specified proportion, stir evenly and spray it on the treated The base layer plays the role of resisting alkali and increasing the bonding force between layers. When spraying, it should be sprayed from top to bottom, left to right, and evenly, especially at the yin and yang corners.
3. Fluorocarbon topcoat application
After the primer is dry (above), mix the two components of the fluorocarbon topcoat in proportion, stir evenly, add the supporting diluent for the fluorocarbon topcoat and let it sit. Ripe. Then roll the fluorocarbon topcoat to avoid cross-contamination. After the first coat of fluorocarbon topcoat dries, polish the defective areas such as local sags and apply the second coat with a roller.
4. Tracing
After the fluorocarbon topcoat dries, use wide paper tape to protect the gaps around the tiles. Use tile tracing fluorocarbon paint to trace the entire ceramic tile to ensure that the gaps are straight. Finally remove the tape.
5. Partial Repair
Inspect the entire wall and repair local defective parts.
6. Construction precautions
. No construction is allowed when the air humidity is greater than % and the temperature is lower than ℃. Construction is not allowed when rain is expected. It is also not suitable for construction in windy weather, sandy weather, rainy weather or weather with wind strength greater than 30%.
. For windows, pipelines, original exterior wall stone parts, air conditioners and other engineering parts that do not require construction, the finished products should be protected in advance to prevent contamination.
. Prepare safety protection and finished product protection in advance around the building, entrances and exits, etc. and set them up around the entire building
Set up cordons and warning signs in the isolation zone of the construction area, and assign dedicated personnel to provide care and guidance.
. The coatings required for a project should be prepared according to the predetermined construction plan. Products with the same batch number should be prepared at one time as much as possible to prevent color differences caused by different batch numbers, which may affect the decorative effect and cause inconvenience to the construction.
.The required amount of paint should be calculated based on the area, otherwise the remaining paint will solidify and cause waste.
.After completion of construction, all tools should be cleaned with corresponding supporting thinner.
During the construction process, please wear protective equipment such as glasses, gloves, and gas masks, and try to avoid contact with the skin to reduce the harm of organic solvents to the human body.
. Pay attention to fire prevention at the construction site and strictly prohibit all fire sources.
. Storage and transportation conditions: Solvent-based coatings should be stored in a warehouse with a temperature of ~℃. Avoid direct sunlight and keep away from fire and
heat sources.
7. Quality acceptance
. After several passes of painting, the thickness of the coating must meet the requirements. Even roll coating, no omissions, clean surface, no color difference, and no obvious color change after spraying with water.
. Every square meter of painted wall is divided into one inspection lot. If the wall surface is less than one square meter, it is also divided into one inspection lot.
8. Process characteristics