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    Recondition and Change Color for Aluminum Plate & Aluminum Composite Panels

    作者:qingdaoqihang 来源: 日期:2017-11-20 16:13:02 人气:

    Recondition and Change Color for Aluminum Plate & Aluminum Composite Panels

    Ageing Factors of Aluminum Composite Panels and Aluminum plate Curtain Wall

    1.  Contamination

    The common contamination of Aluminum plate & Aluminum Composite Panels Curtain Wall is caused by acid rain, stains which generated by artificial irregularities acid cleaning, and paintwork weather aging.

    2.  Product Description

    (1) Aluminum plate Curtain Wall normally means the surface of Single - Skin Aluminum, Aluminum Composite Panels and Aluminum Honeycomb Panels which are treated by high temperature baking paint. As the exterior wall of a building, it will be gradually attached to a large amount of stains after using for some time due to air pollution (automobile exhaust and air pollutants in industrial area) and the combined action of dust and acid rain, which will affect the appearance of the building. And the pollutants contain acidic substances which can lead to the erosion of the paint film on the aluminum plate surface. Dust which containing a large amount of organic pollutants and the flow of acid rain cause the stains to adhere to the aluminum plate easily. It becomes difficult to clean once the pollution comes into being.

    After improper cleaning, somewhere of the aluminum plate curtain wall become cleaner, somewhere dirtier. The facades of curtain wall will appear large area of flooding and color phenomenon.

    In view of the above causes, our company (Qingdao Qi Hang Industry & Trade Co. Ltd) developed a complete set of recondition programs for old Aluminum Plate Curtain Wall and Aluminum Composite Panels combined with years of experience of product production and construction. And the programs have been implemented. Users have good evaluation on our company’s targeted program, and they have help us do promotion by convenience.

    (2)  AdvantagesNo need to remove the original sheet and return to the factory coating, and reduce maintenance costs of Party and Government offices.

    Special Paint for Aluminum Plate Recondition (curing at room temperature)

    1.  Introduction:
    This product is two - component coating composed of super weather resistant resin imports from abroad and high quality pigment and filler, which can effectively prevent a variety of chemical corrosion medium from damaging the grass-root and has long service life. It applies to outdoor aluminum alloy, aluminum profiles, and decorates protective coatings.

    2.  Product Characteristics

    Super adhesion, high hardness, easy to clean, good color retention; weather resistance, corrosion resistance, temperature resistance, self-cleaning; more than 20 years’ service life.

    3.  Qualification

    Washability>20000times 

    Water resistance240h No abnormality

    Salt spray test1500h  No abnormality

    4.  Consumption of paint (one time/ theoretical value) 8-10m2/kg

    (The actual brushing area varies depending on the condition of the substrate)

    5.  Drying time:  (temperature 25℃/ relative humidity 70%)
    Dry to touch:1hour Recoat interval>8hour Actually dry:24hour

    6.  Construction method: brush, roller or spray

    Standard packaging:20kg(A component)
    Paint ratio: A component: B component=10:1
    Dilution ratio:0-10%

    Change Color Construction Technology of Aluminum Plate & Aluminum Composite Panels

    Technics based on chalking grade of aluminum veneer’s original coating and original painting process:

    1.  Physical grinding: (be applicable to chalking grade of Curtain Wall ≤ level3.) Using polishing tools make the surface of being coated polished rough and uniform strength during the whole process of polishing, and no missed play. Cannot puncture the original coating.

    As it has been painted two times, the building begun to peel. According to the construction requirements, paint stripping treatment is needed. (using epoxy paint remover do whole surface coating and grinding thoroughly with angle grinder after the paint is softened or dry from the skin.)

    2. Treatments of diving joint: Clear all original seam silicone (Clearing fee is calculated separately) or using paste to protect it.

    3. Seal grassroots: Using high adhesion penetration primer to close the pores of the original coating, precipitate and so on.

    4. Top coat spraying: Spray the surface twice evenly.

    5. Treatments of diving joint: Re-plastic protection (or do clear-up)

    Comparison between Before and After Decorating the Aluminum Plates

                            Before Recondition                                       After Recondition

     

      

     


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