In the decoration of houses, we often use various types of materials, especially in the construction of walls, there is almost a process of scraping putty, which adds smoothness to the wall, so putty powder has always been very popular. Consumers love it, but as the putty powder continues to change and more and more functions, the quality of some putty powder will not be guaranteed, so consumers must understand the putty powder, then the putty needs to be scraped What materials ? Let's take a look.
What materials do you need to scrape putty
1. In order to make the wall smoother, the putty is usually scraped on the wall, mostly three times. It is better to dry it and then smooth it with sandpaper. Generally speaking, this process is to apply latex Before painting, scraping putty refers to removing the uneven part of the base surface through filling or overall treatment, and keeping the wall surface smooth and smooth, which is the most important step in the base treatment.
2. In order to improve the viscosity of such products, carboxymethyl cellulose is generally added to it, which is very hygroscopic and easily soluble in water, followed by white is also an indispensable material, usually divided into two types, block It is powdery, requires pure white color, fineness requires an 80-mesh sieve, gypsum is an air-hardening gelling material, and must not be damp or rainy. It is strictly forbidden to use damp and agglomerated gypsum. Talc powder is soft, smooth and light.
What materials are needed to scrape putty: different putty prices
1. Traditional putty
This is the earliest product that appears in front of the public. After construction, the surface hardness is large and the cost is low, about 2.5 to 3.5 yuan per level. However, because this product contains many harmful residual substances such as formaldehyde, it is easy to delaminate and should not be scraped too thick. It is prone to mildew and moisture, so it was forbidden by the state in July 2002.
2. Water-based putty
It was gradually accepted by the public after 2002. The hardness is slightly lower. The cost is about 5 ~ 6.5 yuan per square. It has good mildew resistance and moisture resistance. It dries quickly and the harmful residues are also greatly reduced. However, there are still delaminations. The phenomenon is not suitable for scraping too thick, it is a simple upgrade product of traditional putty, and it is not suitable for purchase on rainy days.
3. Cooked rubber ash
From the current point of view, this is the most widely used product, with less harmful residues, good moisture and mildew resistance, no delamination, suitable for uneven surfaces, good construction performance, but its surface hardness A few times, it needs latex paint to achieve a good effect. It has a long drying time and a large cost, about 10-15 yuan / m2.
Summary: Ok, the above is about what materials are needed for scraping putty . I hope to provide you with some help. I believe that in the future selection process of scraping putty materials, friends will be more handy and buy their own satisfactory products.
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