Floor paint using a one-time coating process, no matter how large the area, there is no connection seam, but also a dust-free material, with strong adhesion, friction resistance, hardness and other characteristics, has been widely used in China. So what is its construction process? How do I do that?
The single-use coating process includes base treatment, finishing sealing coating, batch scraping batch scraping, coating floor paint middle layer, and coating floor paint surface layer. Let's take a look.
1
Base surface processing
1. The basic ground is subject to cement powder or grinding stone land, the plain land needs to be maintained for more than 28 days, and the moisture needs to be less than 8% before the construction of the plain land if there is unevenness or empty drums need to be removed. The allowable void of the flat surface is 2 to 2.5mm, the moisture content is below 6%, and the PH value is 6 to 80.
2. The hair beating on the surface of the floor needs to be completed with a dust-free grinder and thoroughly cleaned with a vacuum cleaner. Apply putty to the holes and obvious depressions on the surface of the floor to fill the batch scraping, and after hard work, grind and vacuum. Dry and clean construction sites should be kept dry and clean before construction.
2
Finish closure paint
1. In the treatment of clean and flat concrete surface, high-pressure airless spraying or roller coating is adopted, and epoxy closed bottom paint is used.
2, epoxy sealing paint has a strong permeability, in the brush primer should be added a certain amount of diluent, so that the diluted primer can penetrate into the interior of the base layer, enhance the adhesion of the coating and the base layer, its coating must be continuous, not interrupted, the amount of coating to the surface is just saturated prevailing.
3. Partial leakage can be repaid with a brush, and the excess primer on the surface must be polished before the construction of the next process.
3
Batch scraping batch scraping
1. After the hard work (25 ° C, about 4 hours), the surface of the primer adopts the method of scraping putty in two batches to ensure the wear resistance, pressure resistance, collision, water, mineral oil, acid and alkali solution and other properties of the floor, and adjust the flatness of the ground.
With 100 ~ 200 mesh quartz sand and epoxy batch scraping, as the first putty, to be fully stirred evenly, scraped flat, this channel is mainly used to enhance the wear resistance and pressure resistance of the ground.
2. Use a sandbag type dust-free rolling scrub to grind the first putty, and vacuum and clean. With 200-270 mesh quartz sand and epoxy batch scraping, as the first putty, to be fully stirred evenly, scraped flat, this channel is mainly used to enhance the wear resistance and flatness of the ground.
Use a dustless rolling scrub to sand the second putty and vacuum it to clean. After two puttys, if there is a hemp surface, cracks should be repaired first, and then polished with a flat sanding machine to make it flat and clean.
4
Paint the middle layer of floor paint
1, on the surface of the putty after grinding and cleaning (20 ° C, 24 hours) with epoxy floor coating coating coating middle layer, the coating method can be brushed, batch scraped, high-pressure airless spraying, large-area construction to high-pressure airless spraying is the best, spraying pressure of 20 ~ 25Mpa.
2. This time can make the ground more flat, and it is easier to find defects that still exist on the ground, so that the next surface layer can be leveled.
5
Paint the floor covering
1. After the middle layer is hard-working, the epoxy floor layer is coated, and the coating method is sprayed with batch scraping and high-pressure airless spraying, but it is appropriate to spray with high pressure without air.
2. Before painting, the middle layer should be sanded and vacuumed with a sandbag-type dust-free rolling scrubbing machine. For example, after Party A has worked hard in the middle layer, it has first carried out the installation and commissioning of the equipment, causing new defects to form on the ground, applying batch scraping material to level, polish, and vacuuming, cleaning and spraying the surface layer.
The above is to introduce you to the process steps of disposable coating, I hope it will be helpful to you!