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| Suggestions and precautions for sandblasting coatings on exterior walls |
Exterior wall sandblasting coating is a decorative and protective material used for building exterior walls. It applies the coating evenly to the surface of the wall through sandblasting technology, forming a beautiful and durable coating. Here are some suggestions and precautions regarding sandblasting coatings for exterior walls:
Choose the appropriate coating: Before sandblasting, it is necessary to choose a sandblasting coating suitable for the exterior wall. These types of coatings typically have good adhesion, weather resistance, pollution resistance, and durability. You can choose types such as acrylic, silicone acrylic, and elastic coatings.
Base surface treatment: Before sandblasting construction, it is necessary to ensure that the wall base surface is clean, flat, free of oil stains and dust. When necessary, high-pressure water guns can be used to clean the walls to ensure that the base surface is dry and firm.
Sandblasting equipment selection: Choose the appropriate sandblasting equipment based on the construction area and coating type. The commonly used sandblasting equipment includes pneumatic spray guns, electric spray guns, etc.
Construction environment: Sandblasting coating construction should be carried out in sunny and dry weather, avoiding construction in rainy seasons or environments with high humidity to avoid affecting the adhesion and drying speed of the coating.
Construction technology:
Firstly, perform bottom layer treatment by using specialized primer to seal the wall and improve the adhesion of the coating.
Next, sandblasting construction should be carried out, and the pressure and distance of the spray gun should be adjusted according to the type of coating and construction requirements.
Then carry out surface layer construction to ensure uniform and seamless coating.
Coating thickness: The coating thickness of sandblasting coatings should be determined according to design and usage requirements. Generally, the coating thickness is between 0.5-1.5mm.
Maintenance and upkeep: After sandblasting coating construction is completed, regular cleaning and maintenance should be carried out to extend the service life of the coating. You can use clean water and neutral cleaning agents for cleaning, avoiding the use of highly corrosive cleaning agents.
Safety measures: During sandblasting construction, operators should wear appropriate protective clothing, masks, goggles, and other protective equipment to ensure construction safety.
Professional construction: It is recommended to have a professional construction team carry out sandblasting coating construction to ensure construction quality.
Through the above suggestions, it is possible to better carry out the construction of external wall sandblasting coating, ensuring the decorative effect and service life of the external wall. |
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