What are the reasons of Paint the muddy » boiled oil, varnish opaque, the turbidity of the phenomenon known as the pistachio. Mainly due to improper choice of solvents, moisture absorption, moisture content, the reaction is not complete, low storage temperature, precipitation and other units of reasons. By the replacement of additives, filtering, double-cooked response, improve storage temperature and other means to resolve. For example, mildly muddy, depending on the circumstances and take some turpentine, alcohol or benzene solvent solution. -------------------------------------------------- What is all about paint tone sandhi » Paint in storage during the viscosity increase and become difficult to construction of the phenomenon is known as tone sandhi. The reasons are: a. Paint acid value too high, and alkaline paint in saponification; b. Barrels of tank leak of volatile solvents; c. Bucket of paint containing water, storage temperature is too high to speed up the polymerization of paints; d. Storage temperature is too low, particularly water-based paint vulnerable to cold precipitation. The first four can join the appropriate solvent, water can be added appropriate amount of alcohol, Jiaoyun adjustment after the use of viscosity, which can be moved into greenhouses store 2 to 3 days to thaw them recover. -------------------------------------------------- Why paint sediment caking » paint precipitation in the paint barrels at the end, or even form a lump called precipitation caking. Reasons: a. Storage time for too long; b. Pigments than significant, especially Hongdan, chrome yellow; c. Pigment particles too rough; d. Paints viscosity is too low; e. Glass not wear evenly dispersed. This phenomenon is more common, light will pour liquid paint the upper and stir up the sediment forced open, together with the original paint on the use of filters for uniformity. -------------------------------------------------- What is the coating crust » Found a layer of paint barrels of oil a skin known as the crust. Reasons: a. Bottled dissatisfaction or barrelhead lax; b. Paints a large quantity of tung oil or excessive polymerization; c. The amount of catalyst too much. japanned leather must lifted off or filter before use. -------------------------------------------------- Why paint will change color » a. In paints and pigments free acid (such as aluminum powder) in chemical and black, green hair, the commonly used method to avoid the packaging; b. Sometimes solvent and the black iron sheet also white color change color pigment, so commonly used galvanized iron sheet or tin packaging; c. paint major rehabilitation in the paint than the sinking also caused discoloration, such as green as chrome yellow and precipitation in blue, mixed can resume after the primary color, it does not belong to real change, only need to use the full mixed. -------------------------------------------------- What is the coating expanded» Paint viscosity increase significantly until thick slurry there is a cost to lump the phenomenon is known as expansion. In shape again for the performance of the liver, rubber, and other forms of false thick. a. Because the liver is the base of the paint (zinc oxide, Hongdan points, deep chrome yellow) and high in acid value paints a result of saponification. Ba-white paint containing zinc zinc oxide, so it obtained from the Seqi easy liver and liver after coating can not remedy; b. Compound is due to excessive polymerization and paints containing polymer compound, the tiny pigment particles condensed into large pieces, then instead of increasing the viscosity, the gel is formed from iron in general and more blue and chrome yellow paint two color paint made of the role of the machinery can be re-distributed. c. suppose-thick also known as false thixotropic, that is, in a very static as the liver, but after a stirring flow freely, and stop stirring and rehabilitation of the phenomenon. Many occurred in zinc oxide, lithopone, such as carbon black pigment more pigment, the general can not paint the sick. -------------------------------------------------- Why paint the barrels will be loaded deformation » If the improper storage places, in midsummer heat, the drum temperature is too high, solvent gradually turned into gaseous, sealed barrels of paint slowly expanding, if not timely processing, light, deformation, who re-burst. In such a situation should be promptly opened barrels of gas and slowly moved to the cool-location, the paint containing aluminum powder deformation is sometimes easy because of aluminum powder and free acid produced a reaction of hydrogen.