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    Home > Coatings News > Paints and Coatings Market > Common knowledge of coating: what is the function of polishing putty in the construction of synthetic resin curtain wall?

    Common knowledge of coating: what is the function of polishing putty in the construction of synthetic resin curtain wall?

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: the main function of polishing putty is to fill the rough space of base putty and provide a good polishing foundation for decoration layer Base polishing putty can be divided into smooth putty and polishing putty However, due to the particularity and discreteness of construction engineering, the subdivision of product functionalization will bring many problems, such as low efficiency, many potential quality hazards and high construction cost (1) Smooth putty the base material of smooth putty is also Portland cement and organic polymer, but the particle is fine and does not contain coarse aggregate composition, and the fineness of its composition should not be low 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 Paint Home News: the main function of polishing putty is to fill the rough space of the base putty and provide a good polishing foundation for the decorative layer Base polishing putty can be divided into smooth putty and polishing putty However, due to the particularity and discreteness of construction engineering, the subdivision of product functionalization will bring many problems, such as low efficiency, many potential quality hazards and high construction cost (1) The base material of smooth putty is also Portland cement and organic polymer, but the particle is fine and does not contain coarse aggregate composition, and the fineness of its composition shall not be less than 325 mesh Smooth putty belongs to thin layer construction, the film thickness is required to be thinner and thinner, and the flat surface established by leveling putty should be maintained, which also requires high construction performance of smooth putty The smooth putty no longer needs leveling function, but only needs to fill the gap on the surface of leveling putty film, so the thickness is very thin In addition, due to the influence of air flow, direct sunlight and high base temperature, the water loss is faster and the operability is lost earlier Therefore, the water retention performance of putty should be ensured by selecting appropriate water retention agent and its dosage As the sub base layer of leveling putty, the putty film should have high strength If the strength can not meet the requirements, it will directly affect the adhesion of the coating (2) Polishing putty polishing putty is more delicate, the filler fineness used should be less than 60 μ m, the main function is to provide a smoother decorative base similar to polishing effect on the basis of smooth putty, and it is the last material for the base treatment of fluorine resin paint imitating aluminum plate At the same time, because the materials of the above processes are all water-based materials, and the materials after polishing putty are all solvent based materials Therefore, polishing putty also has the function of interface agent The surface of polishing putty film shall be smooth and have a similar polishing effect, so as to be able to contribute to the "maintenance free self-cleaning function" of fluorine resin coating for aluminum plate The self-cleaning function is affected by several aspects, and the smoothness of the coating is one of the key factors The higher the smoothness is, the less the visual gap or micro particle gap on the surface is, and the more difficult the dust adheres to it After the rain wash, the dust is easy to be washed out, so as to achieve the "maintenance free self-cleaning function" According to the different main film-forming materials, polishing putty mainly includes acrylic polyurethane polishing putty, acrylic polishing putty, epoxy resin polishing putty and water-based polishing putty Among them, acrylic polishing putty is suitable for matching with weak solvent fluororesin coating If it is used in two-component coating, the phenomenon of "undercut" may appear in the subsequent process construction 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,
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