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    Home > Coatings News > Paints and Coatings Market > Coating knowledge: construction preparation conditions of waterborne high temperature coating

    Coating knowledge: construction preparation conditions of waterborne high temperature coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: the base material of water-based high temperature coating should be polished to increase the adhesion of the coating When the roughness value of the substrate is greater than or equal to the coating thickness value, it is easy to lead to uneven film, premature pitting of wave peaks and bubble entrapment at the valley bottom For example, during the construction of high temperature resistant anti-corrosion coating, water curing is required to be dry, and the possibility of corrosion is enlarged when the roughness is greater than the film thickness This example also shows that the surface with high roughness is not suitable for painting thin film In the spray process design and quality planning, the inspection and experiment scheme of each link shall be clear and detailed Water based high temperature coating substrate grinding is self inspection, inspection time line is sufficient Test method of substrate roughness roughness 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 base material brush water-based high-temperature paint base material to achieve grinding, increase the adhesion of the coating When the roughness value of the substrate is greater than or equal to the coating thickness value, it is easy to lead to uneven film, premature pitting of wave peaks and bubble entrapment at the valley bottom For example, during the construction of high temperature resistant anti-corrosion coating, water curing is required to be dry, and the possibility of corrosion is enlarged when the roughness is greater than the film thickness This example also shows that the surface with high roughness is not suitable for painting thin film In the spray process design and quality planning, the inspection and experiment scheme of each link shall be clear and detailed Water based high temperature coating substrate grinding is self inspection, inspection time line is sufficient Substrate roughness test methods: roughness control board iso8503, needle type measuring instrument, branding tape method Roughness samples include shot peening roughness comparison, sanding roughness comparison, machining surface roughness comparison, casting surface roughness comparison and anti-corrosion surface treatment Sa2.5 According to the demand of acid and alkali resistant anticorrosion market and the improvement of material characteristics, ZS Zhisheng high temperature acid and alkali resistant anticorrosion coating is developed by Beijing Zhisheng Weihua Chemical Co., Ltd after years of development and research The temperature resistance can reach 2300 ℃ It is a new type of deep synthesis of inorganic nano polymer Silicon carbide, fine-grained aluminum oxide, zinc oxide, paint can generate physical and chemical double protection with the substrate surface Protection function: inorganic acid and alkali resistant polymer anti-corrosion coating, which is firmly combined with chemical bond and matrix, has no pollution to the environment, long service life, and anti-corrosion performance reaches the international advanced level It is a high-tech replacement product in line with environmental protection requirements The coating of high temperature resistant and anticorrosive coating should have high temperature resistance, compact coating and strong corrosion resistance Zs-811 high temperature resistant and anticorrosive coating of Beijing Zhisheng Weihua Co., Ltd uses Zhisheng Weihua silicon oxygen carbon synthesis high temperature inorganic re modified solution and ultra-fine inorganic polymer sheet metal oxide as filler The coating can reach the temperature resistance of 2300 ℃ for a long time, and the coating is heated to high temperature Solution and filler lattice cross-linked, dense glass phase state, stable TG phase boundary at high temperature, can effectively prevent the invasion of oxidation medium, avoid the generation of oxidation lattice The coating has good acid and alkali resistance, high hardness and high hardness The coating can withstand open fire barbecue for a long time It has good anti-oxidation and anti-corrosion effect in hot fire, and the effective anti-oxygen diffusion can reach more than 90% Zhisheng Wei Hua ZS-811 high temperature anticorrosive coating, temperature resistance 2300 degrees, contains a large number of anti-aging and corrosion resistance factors and OH active groups It is fast cross-linked with active components of fillers and steel or other active surfaces, forming a three-dimensional structure of inorganic polymer anticorrosive coating Zhisheng Wei Hua ZS-811 high temperature anticorrosive coating integrates the coating with the matrix, forming an electrification The heat-resistant and high-temperature anti-corrosion coating with the function of scientific protection and physical shielding is especially suitable for the long-term high-temperature protection of steel or other material structures working in high temperature and corrosive environment The continuous and stable thickness of the film can be determined by the detection of the missing points in the grinding of the base material of the water-based high-temperature coating, so as to help to find the parts where the anti-corrosion coating is too thin, leaking metal or pinholes, which is also an effective auxiliary means to measure the film thickness of the products with complex structure The instrument used is spark detector The typical thickness of special paint such as 1021 high temperature sealing coating is less than 125 μ m, but cross cut is not recommended When using cross grid method, it is necessary to distinguish the grid spacing according to the film thickness If the gear is blunt, it should be grinded in time Judge whether the water-based high-temperature coating is dry and solidified, press it with fingernail, and observe whether there is indentation pulverization 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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