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The characteristics of inorganic coatings are revealed

28 Jun 2019

Modern industry and modern way of life make environmental pollution more and more serious. The massive production and consumption of petroleum products has led to a sharp rise in VOC and carbon emissions. Various countries have enacted various laws and regulations to curb organic matter and carbon emissions. As the main source of pollution, the paint industry is developing in the direction of low pollution and environmental protection. Inorganic mineral coatings conforming to environmental protection have become the development direction of coatings. The 4E production method that prioritizes economy, ecology, energy and efficiency has become the direction of future coating development.


Inorganic mineral coatings have become the development direction of 4E coatings production due to their excellent environmental performance. Inorganic mineral coatings mainly use inorganic compounds such as silicates and phosphates as binders. It is formulated by adding pigments, fillers, additives or curing agents. There is no volatile organic compound in the production and use, it is harmless to the environment and low in cost. Such a film has the characteristics of flame retardancy, weather resistance, corrosion resistance, insulation, heat insulation, high hardness, etc., and its high temperature resistance far exceeds that of organic coatings.
 
Inorganic mineral coatings are attractive for their high added value and special functions, and have been widely used in ships, offshore oil facilities, storage tanks and steel rust prevention in Europe, America and Japan , bridges, pier protection, etc., durable for more than l5 years, Europe has 20 years of experience in use. So what are his strengths and weaknesses?

 

Advantages of inorganic mineral coating

(1) Inorganic The main components of mineral coatings are silicate (potassium silicate), inorganic pigments and inorganic mineral fillers. There is no organic volatile, non-toxic, tasteless, non-irritating, and harmless to the ecological environment and human health. Simon A+ inorganic coating has passed the French A+ certification, non-toxic, odorless, non-irritating gas and extremely low organic emissions.
(2) The coating and the base material used in the building belong to the same type of substance and match very well. Silicate reacts with carbon dioxide in the air to form silica sol, which automatically penetrates into the wall or becomes one, so that the pigment and filler are silicified under the action of the curing agent and become one, and the combination with the wall is very good.
(3) The silicon-oxygen chain structure formed in the inorganic coating is very similar to the natural crystal, and the thermal conductivity is similar to that of the wall. Gases harmful to the environment and human health. The national standard <<GB50222-2017>> has been stipulated by the national standard <<GB50222-2017>>
(3) Inorganic mineral paint has good weather resistance, and its service life exceeds 15 years. The buildings painted with this paint in European countries have a service life of more than 20 years. It greatly reduces the number of repainting of buildings and reduces the cost of building maintenance.
(4) Inorganic mineral coatings also have good air permeability and water resistance, and do not breed fungi or algae. The coating film formed by it can also have the functions of impermeability and perspiration like human skin, which can ensure that the coating film does not bubble, yellow or peel off.
(5) The construction is simple. When the base surface is treated, it is required that the wall surface is flat, without unevenness and pores, and it can be applied by brushing, roller coating or spraying.


Problems and shortcomings of inorganic mineral coatings
(1) At present, there is no relevant standard for inorganic coatings . In order to promote the healthy development of inorganic coatings, national standards should be formulated as soon as possible to unify the production, construction and application of inorganic coatings, and completely change the chaotic situation in the inorganic coatings market.
(2) Inorganic coatings have poor storage stability and are prone to layering and precipitation. If they are not carefully applied, there will be problems such as poor leveling and unsatisfactory decorative effects. This requires us to increase investment in research and development and solve them as soon as possible. . In terms of the stability of inorganic coatings, Shenzhen Simon United Building Materials Co., Ltd. operates a unique stabilization technology and proprietary powder, which has achieved that there is no serious delamination of Simon A+ inorganic coatings within 12 months. Construction performance is good.
(3) In terms of research and development and construction application, high-quality inorganic coatings have good stability, and the construction performance is close to that of latex paint. Workers will not feel unsuitable places and obstacles during the construction process. The silicate in high-quality inorganic coatings can be well blended with other powders and does not need to be prepared on the construction site. It can be easily constructed with ordinary construction tools, and can be diluted with water according to the wall and weather conditions.  

 

In short, under the pressure of environmental protection and ecology, I believe that a wide variety of environmentally friendly, resource and energy-saving New coatings that are safe, healthy and friendly to human beings must be the future development direction, and inorganic coatings will inevitably be the fastest-growing type of these new coatings.