Exterior wall coatings can be divided into: synthetic resin emulsion exterior wall coatings (exterior wall latex paint), solvent based exterior wall coatings, complex building coatings, silica sol exterior wall coatings, colored sand coatings, fluorocarbon coatings, etc.
Pure acrylic emulsion paint and styrene acrylic emulsion paint are two kinds of exterior wall paint widely used at present. Silicon acrylic emulsion paint is a kind of exterior wall paint with good self-cleaning property.
Pure acrylic emulsion paint: weather resistance, color retention, scrub resistance, pollution resistance, non-toxic, non combustible, fast drying, construction temperature above 5 degrees, quality grade is divided into three quality grades: superior, first-class and qualified.
Solvent based exterior wall coating: it is a kind of exterior wall coating which is based on synthetic resin, added with pigments, fillers, organic solvents, etc. and grinded. Its application has no synthetic resin emulsion exterior wall coating, but the coating has good hardness, gloss, water resistance, stain resistance and corrosion resistance. Its service life is more than ten years, so it is also a very practical coating. When used, it is noted that the solvent based exterior wall coating can not be applied on the wet base and the organic solvent is flammable, and some are also toxic.
Acrylic silicone exterior wall coating: good permeability, stain resistance, wear resistance, washing resistance, with a certain degree of smoothness and self-cleaning. It has a long-term decorative effect.
Solvent based acrylic exterior wall coating is a solvent volatile coating; solvent based exterior wall coating can also form coating below 0 degree, with little impact on construction temperature.
Polyurethane exterior wall coating (porcelain like coating) has good elasticity, high gloss, ceramic texture on the surface, strong adhesion with the base, good weather resistance, water resistance and other properties, but high price. It has a strong binding force with concrete, metal, wood and other materials. It needs two-component curing coating. The diluent is organic solvent. Pay attention to fire prevention during construction.
Multi layer building coating: it is composed of multi-layer coating, generally including three layers: sealing coating (mainly used to seal the pores of the base layer, improve the adhesion between the base layer and the main layer coating), main layer coating (to enhance the texture and strength of the coating), and cover coating (to make the coating have different colors and luster, and improve the durability and stain resistance of the coating).
According to the main coating, the substrate can be divided into four categories: polymer cement, silicate, synthetic resin emulsion, reaction curing synthetic resin emulsion. According to the different raw materials used, the coating can be used for the decoration of interior and exterior walls and ceilings of buildings, belonging to high-grade building decoration materials.
Silica sol exterior wall coating: with water as dispersant, it has the characteristics of non-toxic and tasteless, good construction performance, strong pollution resistance, acid and alkali corrosion resistance, and strong adhesion with the base. Application: inorganic board, interior wall, exterior wall, ceiling finish.
Colored sand coating: it is a thick coating. The coating is made of synthetic resin emulsion as the main film forming material.
Fluorocarbon coating: a new type of coating with the best performance. According to the different curing temperature, it can be divided into high temperature curing type, medium temperature curing type and normal temperature curing type. Features: excellent weather resistance, pollution resistance, self-cleaning, acid resistance, alkali resistance, strong corrosion resistance, high and low temperature resistance. Purpose: to make coating of metal curtain wall surface coating, aluminum alloy doors and windows, profiles, etc.