Many people don't know the difference between gypsum powder and putty powder. Gypsum powder has good fireproof effect. Compared with other decorative materials, the volume expansion coefficient is small. In addition, there may be some problems in decoration. In addition, gypsum products are more powerful, with the advantages of light weight, high strength, large use area, mite prevention, heat insulation and sound absorption. In addition, various construction techniques can be used in the installation process. Do the installation, but these materials have strong hygroscopicity, so pay attention to waterproof. But in this color, gypsum powder is dull and putty powder is white. From the feel, gypsum powder is rough, but putty powder is not. The putty powder is white after drying, and the gypsum powder can be yellow.

Second, the selection and use of gypsum powder

If you want to buy a good piece of gypsum powder, you must first understand the hardness of gypsum powder. Generally, good gypsum powder is white and fine, depending on when the gypsum powder solidifies. It is best to choose the three-minute quick-drying type. It is not advisable to choose a longer drying time. Also pay attention to the scope of use of gypsum powder. If it is yellow gypsum powder, it is generally used for sculpture. When it is necessary to avoid immediate hardening, it is necessary to add a small amount of oil to the putty. Finally, how much water to add depends on the weather. If the air is dry, add more. If it's low, add less.

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