During house decoration, wall decoration is a very important project, because whether the wall surface is flat affects the beauty of the family, and putty scraping is a common method to make the wall flat. So what are the steps for scraping putty on plasterboard , and what should you pay attention to? Let's take a look!
What are the steps for scraping putty on plasterboard
Ready to work:
1. Wall inspection
The first important step in scraping putty on gypsum board is to check the wall surface to see if it is solid and flat. If there are cracks or stains on the wall surface, the wall surface must be treated first.
2. Material preparation
Next is to prepare the material, and then evenly roll the concrete interface paint. After drying, you can start to scrape the putty. If it is a newly built wall, it needs 28 days of cement curing period to scrape the putty.
Processing work:
1. Scrape Putty
Generally, it is sufficient to scrape the putty twice on the wall surface. If the wall is not flat enough, you can scrape it a few times.
2. Putty polishing
Then start to polish the putty. This step needs to be polished after the putty is dry. It is best to perform it at night. Use a light bulb with more than 200 watts to close to the wall and check the flatness while polishing.
3. Brush primer
After the putty is polished, start to paint the primer. The method is to clean the dust left by the putty on the wall first, apply the primer evenly, and wait for the primer to dry.
4. Brush the top coat
The final step is to brush the topcoat. Generally, the topcoat needs to be brushed twice. It can be done after the first pass is dry. It only takes 2-4 hours, and the second pass takes 1-2 days.
What to pay attention to when operating
1. Try to use a light steel keel as the ceiling, because the wooden keel is easy to deform, which may cause the seam to crack.
2. Gypsum board is best to use double-layer, the joint position is fixed on the keel in a cross-overlap manner.
3. A gap of about 5mm must be left at the joint between the two gypsum boards.
4. Remember to add the right amount of high-quality white latex to the caulk.
5. The caulk should be completed in two times, and the putty should be embedded as far as possible into the gap.
6. When starting the second putty scraping, make sure that the previous putty is completely dry, not too anxious.
7. The white latex used to attach the strap should be of high quality, and the strap should be moistened with water in advance.
In short, there is a difference between scraping putty on gypsum board and ordinary wall scraping. It is necessary to grasp the fit between gypsum board and putty, so the treatment of gypsum board should be strictly done.
The steps and precautions for scraping putty on gypsum board are introduced here. I hope it is helpful to everyone! In fact , the steps for scraping putty on gypsum board are very simple. As long as you master the above steps, you can operate it yourself.
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