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Grinding properties and transparency of zinc stearate

wallpapers Tech 2021-01-11
In today's coatings industry, zinc stearate is used as a polishing agent based on its incompatibility with coating components. It is dispersed in the coating as a very fine suspension and distributed on the surface of the paint film during film formation. The film surface produces microscopic roughness. Zinc stearate is the most insoluble stearate among the five common stearates. It has excellent transparency, dispersibility, adhesion, weather resistance and storage properties.
 
1. Paint grade zinc stearate is a good drier and wetting and dispersing agent
 
Paint-grade zinc stearate is an important paint drier. Used in conjunction with other driers, it can accelerate the drying of the paint film, improve the surface condition of the paint film, eliminate wrinkles, cloth lines, fogging and other defects, and can reach the surface Consistent inside, rapid drying, smooth and smooth, full appearance, good gloss, and also a good wetting and dispersing agent, which can improve the wetting performance of pigments and paints, improve the grinding efficiency, and prevent the precipitation tendency of pigments in storage, hard Zinc fatty acid is also a stabilizer of driers such as cobalt, manganese, lead, etc., which can prevent the disappearance of drier force caused by certain pigments or fillers and the phenomenon of skinning during storage.
 
2. Zinc stearate has several technical indicators in wood primer that affect the performance of the paint
 
1. Polishability
 
In wood primer, sanding performance is a very important indicator in the paint. The usual test method is to use the same coating formula and spray the board at the same time for the sanding test. There is no fixed standard. If only one paint manufacturer of zinc stearate has been used, it does not matter whether the polishing is good or bad, but market competition has led to product comparison and at the same time stimulated the further development of zinc stearate grinding aids. The quality of sanding performance directly affects the speed of construction, and also affects the frequency of sandpaper replacement, which directly affects the cost of furniture manufacturers.
 
2. Transparency
 
In the transparent primer, transparency directly affects the aesthetics of the woodware. Therefore, zinc stearate produced by the water method cannot be used in transparent wood paint, mainly because there are too many impurities. The purity of zinc stearate produced by the direct method can meet the requirements, but the requirements for the process are also very high. Different production processes have a great impact on transparency. It is possible that small differences in the process may lead to huge differences in transparency.  Therefore, although there are many manufacturers that directly produce zinc stearate, they are rare in the coating industry. This is also the core technology of coating zinc stearate enterprises. The usual method for detecting transparency is to use a certain proportion of resin, solvent, zinc stearate to disperse, test sample and standard sample each, and then use an applicator to coat a layer of film on black and white paper or glass to see the degree of transparency.In today's coatings industry, zinc stearate is used as a polishing agent based on its incompatibility with coating components. It is dispersed in the coating as a very fine suspension and distributed on the surface of the paint film during film formation. The film surface produces microscopic roughness. Zinc stearate is the most insoluble stearate among the five common stearates. It has excellent transparency, dispersibility, adhesion, weather resistance and storage properties.
 
1. Paint grade zinc stearate is a good drier and wetting and dispersing agent
 
Paint-grade zinc stearate is an important paint drier. Used in conjunction with other driers, it can accelerate the drying of the paint film, improve the surface condition of the paint film, eliminate wrinkles, cloth lines, fogging and other defects, and can reach the surface Consistent inside, rapid drying, smooth and smooth, full appearance, good gloss, and also a good wetting and dispersing agent, which can improve the wetting performance of pigments and paints, improve the grinding efficiency, and prevent the precipitation tendency of pigments in storage, hard Zinc fatty acid is also a stabilizer of driers such as cobalt, manganese, lead, etc., which can prevent the disappearance of drier force caused by certain pigments or fillers and the phenomenon of skinning during storage.
 
2. Zinc stearate has several technical indicators in wood primer that affect the performance of the paint
 
1. Polishability
 
In wood primer, sanding performance is a very important indicator in the paint. The usual test method is to use the same coating formula and spray the board at the same time for the sanding test. There is no fixed standard. If only one paint manufacturer of zinc stearate has been used, it does not matter whether the polishing is good or bad, but market competition has led to product comparison and at the same time stimulated the further development of zinc stearate grinding aids. The quality of sanding performance directly affects the speed of construction, and also affects the frequency of sandpaper replacement, which directly affects the cost of furniture manufacturers.
 
2. Transparency
 
In the transparent primer, transparency directly affects the aesthetics of the woodware. Therefore, zinc stearate produced by the water method cannot be used in transparent wood paint, mainly because there are too many impurities. The purity of zinc stearate produced by the direct method can meet the requirements, but the requirements for the process are also very high. Different production processes have a great impact on transparency. It is possible that small differences in the process may lead to huge differences in transparency.  Therefore, although there are many manufacturers that directly produce zinc stearate, they are rare in the coating industry. This is also the core technology of coating zinc stearate enterprises. The usual method for detecting transparency is to use a certain proportion of resin, solvent, zinc stearate to disperse, test sample and standard sample each, and then use an applicator to coat a layer of film on black and white paper or glass to see the degree of transparency.

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