Do you know the difference between gypsum powder and putty powder and how to distinguish them?

Everyone knows that in our decoration, putty powder and gypsum powder are very important and are the basis of decoration. However, many people do not know the difference between gypsum powder and putty powder. So next, Yigao good putty will be given to everyone Let’s introduce the differences between gypsum powder and putty powder and how to distinguish them.

The difference between gypsum powder and putty powder

Nowadays, many materials are needed in the decoration process. There are many kinds of paints. People who are not familiar with decoration can easily make mistakes. For example, gypsum powder and putty powder look similar and are easy to get confused. Let me explain below. Let me introduce to you the difference between gypsum powder and putty powder.

How to distinguish between gypsum powder and putty powder

Gypsum powder and putty powder are not the same material. Gypsum powder is mainly used for leveling, caulking, filling holes, and straightening of yin and yang angles. Its particles are relatively rough, hard and difficult to polish after condensation, and the setting speed is fast; putty powder is mainly used for primer. It has a slow setting speed and soft texture after setting. It is easy to polish with sandpaper. It is a good base material before applying latex paint.

1. Color: Judging from the color, the gloss of gypsum powder is dark and off-white; while the gloss of putty powder is preferably snow white;

2. Hand feel: In terms of hand feel, gypsum powder is relatively rough; while putty powder is relatively delicate;

3. Sampling to water: gypsum powder needs to be mixed with paste or glue to harden quickly with water; putty powder can generally be mixed with water directly and is not easy to harden;

4. Sampling wall painting: Paint the mixed gypsum powder and putty on the wall respectively. After drying, the wall painted with gypsum will turn yellow and it is difficult to scrape the putty; the wall painted with putty will be white, and the putty is easier to scrape.

Characteristics of gypsum materials

1. In addition to good fire resistance, gypsum materials have a small volume expansion coefficient of only 1%, which is basically negligible and better than other decorative materials. Therefore, in indoor decoration and decoration construction, all wall expansion coefficients are , defects formed during the construction of the shed surface are all repaired with gypsum powder.

2. Gypsum products have good processing performance and can be installed easily using construction techniques such as planing, nailing, and drilling. However, care should be taken to prevent gypsum products from absorbing water when using them, because the disadvantage of gypsum products is that they are highly hygroscopic, and their strength decreases significantly after absorbing water.

3. Gypsum board also has the advantages of light weight, high strength, relatively increased usable area, moth-proof, heat insulation, sound absorption, etc.

Characteristics of putty powder

Putty powder is powdery putty (corresponding to putty paste). It is generally finished putty. It can be constructed by directly mixing it with water.

Putty, that is, construction putty, is a major category. White powder-type glue-incorporated putty and gypsum-type caulking gypsum putty are both putty types. Gypsum powder is generally high-strength gypsum powder. Its main component is gypsum. It is an additive for many other building materials. It cannot be used alone. It can be mixed with corresponding materials for different purposes. For example, adding a retarder and a certain proportion of sand can make gypsum mortar for rough leveling. Others include caulking gypsum, quick-bonding gypsum, etc.