Pretreatment method before painting - degrease treatment
Metal materials will adhere to various oil stains during processing and storage. According to the nature of oil pollution, it can be divided into saponified oil and non-saponified oil. Saponified oil is animal and vegetable oil, which mainly exists in drawing oil, polishing paste and other products. From the structure, it is an ester structure, which can be saponified with alkali to form soluble substances; Non-saponifiable oil is mineral oil,
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Types and properties of Yutai Chemical-polyester coatings
It contains unsaturated bonds in the main chain of polyester, while alkyd resin contains unsaturated bonds in the side chain; It is cured by free radical polymerization with solvent containing unsaturated bond, while alkyd resin is polymerized by the action of oxygen in the air; However, oxygen can inhibit the polymerization of unsaturated polyester.
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Common diseases and prevention methods of coatings
Clear oil and varnish are opaque, and the turbidity phenomenon is called turbidity, which is mainly caused by improper solvent selection, moisture absorption, water content, incomplete reaction, low storage temperature, and new monomer precipitation. It can be solved by changing the solvent, passing through and returning to the boiler, and increasing the storage temperature.
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2022
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Pretreatment method before painting - degrease treatment
Metal materials will adhere to various oil stains during processing and storage. According to the nature of oil pollution, it can be divided into saponified oil and non-saponified oil. Saponified oil is animal and vegetable oil, which mainly exists in drawing oil, polishing paste and other products. From the structure, it is an ester structure, which can be saponified with alkali to form soluble substances; Non-saponifiable oil is mineral oil,
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2022
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11
Contact Information
Address: Luqiao Salt Chemical Industry Park, Dingyuan County, Chuzhou, Anhui Province
Contact: Chen Wu Ruoyu
QQ：1154101986
Mobile：+86-15051123575
WeChat：Chenwuruoyu
Mobile Website
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