Water-soluble colorful putty coating for exterior wall

Abstract

The invention relates the water-soluble colored putty paint, comprising 20-40wt% calcium powder, 50-80wt% powder enamel, and 0.4-0.8wt% hydroxypropylmethylcellulose or 0.2-0.4wt% cellulose ethyl ether. The invention has the advantages of good water resistance, hardness, long life, nondiscolouring, convenient transport, storing and construction.

Description

technical field [0001] The invention relates to a water-soluble exterior wall colored putty, which belongs to the technical field of architectural coatings. Background technique [0002] At the end of the 20th century, ceramic tiles were mainly used to decorate the exterior walls of buildings in my country. The tiles were heavy, and a large amount of cement mortar was required to adhere them to the wall during construction, which increased the load of the building and was easy Collapse occurs, and due to the sun, rain, and climate invasion, accidents of tiles falling off from the body and hurting people are prone to occur. In order to ensure the safety of people's lives and property, the country has long banned the use of ceramic tiles to decorate exterior walls. [0003] At the beginning of the 21st century, latex paint appeared in my country to decorate the interior and exterior walls of buildings. This product can be formulated into a variety ...

AI Technical Summary

Problems solved by technology

This product can be formulated into a variety of colors to meet people's requirements for wall decoration. However, during construction, it must first be mixed with white cement and polyvinyl alcohol glue to form a slurry, or the wall surface must be scraped and polished with putty before it can be painted. Brushing latex paint, the construction process is complicated, and the coating is relatively thin, which cannot withstand long-term wind and rain attacks. Usually, after two or three years of use, the bottom will fall off or the color will fade. The service life is short and the cost is high. releases harmful gas

[0004] In China Patent No. 02139874.7, the invention name is "Water-Based Porcelain Imitation Coating", calcite powder, zinc white powder, light calcium carbonate, double fly powder, gray calcium powder, distilled water, methyl cellulose and ethyl cellulose are used to prepare the interior wall Paint, although the paint contains less harmful substances and is convenient for construction, storage and transportation, it contains many types of raw materials, the color is only white, and it can only be used as an interior wall paint.