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    Home > Coatings News > Paints and Coatings Market > Coating classification: properties of exterior wall coating

    Coating classification: properties of exterior wall coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: in the past, traditional materials such as veneer bricks were widely used in the decoration of building exterior walls However, although veneer materials such as tiles and stone materials have good durability, their disadvantages are also obvious: 1 Wall discontinuity 2 Color is not easy to unify 3 It will peel off after a long time and hurt people by falling 4 Tile gap is not waterproof, etc As the technical quality of coating has reached a very high level, the service life can reach 15 years or even higher, its rich color and texture as well as economic and affordable cost, has been more and more attention At present, in architectural decoration, whether it is the construction unit or the designer, Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: in the past, traditional materials such as veneer bricks were widely used in the decoration of building exterior walls However, although veneer materials such as tiles and stone materials have good durability, their disadvantages are also obvious: 1 The wall is not continuous; 2 The color is not easy to be unified; 3 It will peel off for a long time and hurt people by falling 4 Due to the high quality of coating technology, the service life of ceramic tile gap is up to 15 years or even higher Its rich color, texture and economic cost have been paid more and more attention At present, in the architectural decoration, whether the construction unit or the designer, has gradually been keen on using paint as the exterior decoration As the exterior wall coating is exposed to the external environment and tested by the nature, its design requirements are obviously higher than the interior wall coating, so what characteristics should the exterior wall decorative coating have? The exterior wall coating is used to brush the exterior wall of the building, so the most important index is anti ultraviolet radiation, which requires long-time exposure without discoloration Exterior wall coating also requires water resistance and self-cleaning The paint film shall be hard and flat, and the dirt shall be washed away as soon as possible Exterior wall coating can be used for interior wall painting because it also has water resistance; interior wall coating does not have sun resistance, so it cannot be used as exterior wall coating Generally, the exterior wall coating pays more attention to the following properties: 1 Elastic crack resistance: in order to level the exterior wall of a building, thick mortar is usually applied, and there are many repair points These mortar may crack due to the stress caused by the cement curing process or due to the cold and hot weather change; in addition, the old wall may also crack due to the loose structure If the coating does not have crack resistance, it will lead to cracking and lose the protection and aesthetics of the wall 2 Long lasting color: exterior wall coating exposed to the sun and rain, the continuity of the coating color is severely tested, UV energy can usually make some pigments denatured and faded Therefore, the paint with long-lasting color is more popular 3 Permeability: like interior wall coating, exterior wall coating must also have permeability, which is even higher than interior wall coating 4 Water resistance: one of the necessary functions of paint and other exterior wall decoration materials: waterproof Paint without water resistance will lose its waterproof ability soon 5 Freeze thaw resistance: it is very important in the cold area of North China Freeze thaw cycle will lead to cracking of coating and affect various performance indexes 6 Anti pollution: the air pollution is more and more serious, the exposed paint surface will soon become dirty It is an urgent need to develop functional coatings without static electricity, stickiness and dust collection 7 Strong adhesion: it is required to have strong adhesion, otherwise the coating will fall off or peel and crack due to various weather or structural changes of the building 8 Covering power: the light on the exterior wall is sufficient, while the color of the base wall is generally darker The paint with poor covering ability cannot cover the color of the bottom layer, which will affect the appearance effect Generally speaking, the rutile titanium dioxide with high refractive index is the best choice 9 Durability: the quantity of external wall works is very large If the durability of coating is poor, the frequency of renovation will be very high, and the cost will rise in a straight line and affect the living and office, etc Using durable and high grade resin emulsion as the base material for exterior wall coating is fundamental 10 Good decoration: it can well reflect the design intention and decoration effect 11 Easy to construct and maintain 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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