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h?fff?ffff???d?d???????vvvvvvcomposition and application of various kinds of coating
a acrylic latex paint: the paint is made of acrylic emulsion, filler, water and additive. the price is decent. it enjoys exellent weather resistance. the paint is applied to the inner wall and exterior wall of the construction and leather. in recent years the latex paint for woods and self-crosslinking latex paint come out.
b solvent acrylic paint: the paint enjoys excellent weather resistance and mechanical property. solvent acrylic paints are composed of air-dry acrylic paint and crosslinking curing acrylic paint. the former one is nonconvertible paint. the latter one is convertible paint. the air-dry acrylic paint is applied to the construction material, plastic coating, electronic coating, road line coating. it can fast dry and it抯 easy for work, protection and decoration. the shortcoming is the solid content is low. the hardness and flexibility is hard to be balanced. the thickness of the film is low. crosslinking curing acrylic paints are composed of acrylic amino paint, acrylic polyurethane paint, acrylic alkyd paint, and radiation curing acrylic paint. it is applied to the car paint, electronic paint, woods paint and construction paint. the solid content of the paint is high. the paint enjoys good thickness, mechanical property, weather resistance, high fullness, high flexibility and hardness. the shortcoming is the construction process is complex because it is the two-component coating. the working condition and weather condition is strictly required.
0c polyurethane paint: polyurethane paint is devided into two-component paint and one-component paint. two-component polyurethane paint is made of isocyanate prepolymer and hydroxyl resin. the paints are composed of acrylic polyurethane, alkyd polyurethane, polymer polyurethane, polyether polyurethane and epoxy polyurethane. it enjoys good mechanical property and high solid content. it is applied to the woods paint, auto paint, anticorrosion paint, floor paint, electronic paint and special paint. the shortcoming is the construction process is complex. the requirement for weather condition is high. one-component paints composed of amine coating, moisture curing and sealing polyurethane coating. it is applied to the floor paint, anticorrosion paint and coiled material precoating.00d nitro paint: the paint is good for decoration and easy for construction. it can fast dry. the requirement for construction environment is low. the paint enjoys good hardness and gloss. the shortcoming is the solid content is low. the durability and colour retention is bad. after a period of the time the lost of colour, cracks and change of colour will exist. it can not resist to solvent, heat and corrosion. the film of the nitro paint is made of nitrocellulose, alkyd resin, modified rosin resin, acrylic resin and amino resin. the nitro paint is applied to the woods, furniture, family decoration, metal and cement. 00e epoxy paint: epoxy paint is two-component paint. it is made of epoxy resin and curing agent. there are some other kinds of one-compenent paint. it enjoys good adhesion on the surface of cement, metal and inorganic surface. it is solvent resistant, heat resistant and water resistant. the film is nontoxic. the weather resistance is bad. the film will pulverize as the result of exposion to the sunshine. the paint can be only used as primer or indoor paint. the decoration performance and colour retention are bad. the requirement for working condition is high. the film should be heated in high temperature. the epoxy paint is usually applied to the floor paint, car paint, metal paint and anti chemical corrosion paint.
f amino paint: amino paint is made of two parts. one is amino resin. the other is hydoxyl resin. the hydoxyl resin include medium and short oil length resin, hydroxyl acrylic resin and epoxy resin. usually the amino paint need heating to cure. the temperature is above 100!. the curing time is more than 20min. the film after curing is bright, durable and good for decroation. but it needs high requirement and cost. amino paint is mainly auto topcoat, furniture paint, household appliance, metallic surface, device and industrial instrument.
g alkyd paint: alkyd paint is made of alkyd resin. the price is cheap. it抯 easy for work. the requirement for working condition is low. the film is full, durable and weather resistant. but it dries for a long time. the standard of film is low. alkyd paint is usually applied to the woodss, furniture, family decoration, metallic surface, car, device, indutrial instrument for anticorrosion purpose.
h unsaturated polymer paint: the paint is devided into air dry unsaturated polymer and radiation curing unsaturated polyer. it can be made into solvent free coating. the thickness of the film is high. the requirement for working condition is low. the film is wear resistant and good for decoration. when it is curing the shrinkage is high. there will be pro789€ ?-
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