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Views:34 Author:Site Editor Publish Time: 2020-10-19 Origin:Site
What are the requirements for the construction of one-component polyurethane waterproof coatings? Due to the advantages of the construction speed and shortened construction period of one-component polyurethane waterproof coatings, it is becoming more and more widely used in practical applications. Next, Hightop Machinery will mainly talk about its construction requirements!
The basic requirement for the construction of one-component polyurethane waterproof coating is that the base layer is flat and dry. For unevenness or a deformation joint of the base, the crack must be leveled with cement gauze, and a connecting pipe with the base must be firm for sanitary facilities, the joints must be tight, and the end must be smoother. The phenomenon of loosening is allowed.
The construction coating film of one-component polyurethane waterproof coating requires careful scraping. The coating film construction must be scraped three times. After the first pass is cured for 12-24 hours, the second brushing is performed at the same time. One direction of the scraping is perpendicular to the first coating direction, and the third pass is If a rigid protective layer is used on the coating film, in order to increase the adhesion between the waterproof layer or the rigid protective layer, generally, when the coating film has not been completely cured, a sparse surface is sprinkled with clean sand After the coating film with sand particles is cured, the protective effect of construction is carried out.
Pay attention to the additional waterproof layer in the construction of one-component polyurethane waterproof coating. Add a waterproof layer at the yin and yang angles, as well as the roots and cracks.
The above is about the construction introduction of one-component polyurethane waterproof coating. For more information on polyurethane, please continue to pay attention to the polyurethane manufacturer Hightop Machinery.
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