What is an analysis of exterior paint Exterior paint

First, what is the exterior wall paint
Exterior decorative paint, is used to paint the building facade, so the most important indicator is anti-ultraviolet radiation, requiring long-term exposure to the same color. Since 2013, energy-saving and environmentally friendly liquid stone water-based coatings have attracted more and more attention. Some exterior coatings also require water resistance and self-contained

. Paint film to be hard and flat, dirty a punch off. Exterior paint can be used for interior wall brushing because it also has water resistance; But the interior wall paint does not have the function of sun protection, so the interior wall paint can not be used as the outer wall paint.
At present, with the steady growth of China's economic development, urban construction is changing rapidly, unique shape, eye-catching appearance of buildings everywhere, the facade of new buildings in the selection of materials and colors are more and more rich, glass curtain wall, natural stone, glazed brick, ceramic tiles, architectural coatings and so on. In recent years, with the gradual improvement of people's living standards, we are more and more demanding on the urban living environment, we are also gradually aware of the existence of light pollution glass curtain wall, safety can not be ignored, metal curtain wall lightning protection, durability is also a concern, natural stone load, moisture prevention can not be ignored, glazed brick easy to fall off dangerous. And the outer wall paint is the lightest weight, the most colorful, the best safety, is gradually getting people's welcome. The advantages of exterior paint on building facades, in addition to bright and rich colors, small construction load, low price, simple construction, short duration and easy to update, or low energy consumption in production of energy-saving products. As a real estate development enterprises, the relatively low price of exterior paint, can reduce the cost of the project, short duration, easy to protect the duration, and choose to paint.
, the variety of exterior paint
exterior wall architectural coating products are mainly two categories: water-based exterior paint, solvent-based exterior paint.
water-based exterior paint is water as a solvent, non-toxic, tasteless, non-combustible, is a green environmental protection products, is the development direction of architectural coatings. Can be divided into synthetic resin emulsions (PHEN, pure propylene, silicone modified acrylic, water-based polyurethane and other types of thin coatings and thick coatings); Inorgeable polymer building coatings (silicates, silicone sols for the base preparation of a variety of inorgetic polymer coatings); Organic inorganic composite coatings (synthetic resin emulsions and silicone sol-based coatings).
solvent-based exterior wall coatings are mostly aromatic hydrocarbons as solvents, VOC content is high, not conducive to environmental protection, but the coating has a high hardness, coating film plump, construction is not limited by the season and so on. In recent years, a low-toxic solvent-based coating has emerged to replace aromatic hydrocarbon solvents with fatty hydrocarbons or other low-toxic solvents, reducing pollution and maintaining the original performance, with a better future for development. Can be divided into acrylic, low-toxic acrylic; Polyurethane, acrylic polyurethane; Silicone acrylic; Fluorocarbon resins.
Three, the choice of different material wall coatings
brick mixed structure ash wall: suitable for pure acrylic latex coatings, cross-linked high-elastic latex coatings, acrylic polyurethane exterior coatings, solvent-based acrylic exterior coatings and other coatings, according to the quality requirements of the project, according to the paint service life of high and low selection. Frame ceramic concrete block dust wall: pure acrylic latex coating, cross-linked high elastic latex coating, acrylic polyurethane exterior wall coating, silicone modified acrylic resin coating. Water-based elastic coatings are recommended due to the problem of wall cracking.
frame aerated concrete block ash wall: pure acrylic latex coating, cross-linked high elastic latex coating, acrylic polyurethane exterior coating, silicone modified acrylic coating. Water-based elastic coatings are recommended due to the problem of wall cracking.
frame insulation (insulation mortar, polybenzene plate insulation, wire mesh frame polybenzene plate after hanging insulation, etc.) wall: cross-link type high elastic latex coating. Because of the insulation material and concrete ash, there is a large difference in dynamic anti-cracking characteristics. It is recommended to choose a coating with high elasticity of different resins.
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