Paint remover for color-coated steel plates and using method thereof

Abstract

The invention discloses a paint remover for color-coated steel plates and a using method thereof. The paint remover comprises the following compositions in percentage by mass: 60 to 89 percent of alcamines compound, 10 to 35 percent of phenolic compound and 1 to 8 percent of corrosion inhibitor. The alcamines compound is one or a mixture of more of ethanolamine, diethanol amine, triethanolamine and isopropanolamine; the phenolic compound is one or a mixture of phenol and cresol; and the corrosion inhibitor is alcohol or carbohydrate, and is one or a mixture of more of sorbitol, xylitol, mannite, sucrose, glucose, maltose or dextrin. When the paint remover is used, the prepared paint remover is heated to a boiling state. Compared with the prior paint removers, the paint remover has good paint removal effect, is suitable for removing epoxy, polyester, high-performance polyester, silicon-modified polyester and polyurethane coatings, has high paint removal efficiency, shortens the paint removal time to about 60 seconds from the prior 2,400 seconds, and has slight corrosion to a substrate and the corrosion rate less than 0.2 percent.

Description

technical field [0001] The invention relates to a paint remover for color-coated steel plates and a use method thereof, especially suitable for removing epoxy, polyester, high-performance polyester, silicon-modified polyester and polyurethane coatings. Background technique [0002] When the color-coated steel plate is analyzed and weighed for quality inspection, it is necessary to remove the coating on the surface of the color plate before testing. [0003] At present, there are several types of paint removers commonly used for paint removal on the surface of color boards: [0004] ① Ketone sugar type - paint remover: acetone, butanone (methyl ethyl ketone) as the main components, plus sucrose as a friction agent. The problem that this paint remover exists is that the paint film solubility to the epoxy type primer is not good, has stronger volatility simultaneously, and the paint remover effect is poor. [0005] ②Chlorinated hydrocarbon type-paint remover: the chlorinated ...

AI Technical Summary

Problems solved by technology

[0009] The invention provides a paint remover for color-coated steel sheets and its use method, which are used to solve the problems o

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