One、Is putty powder the same as plaster powder?
1、Gypsum powder and putty powder are not the same material.
Gypsum powder is primarily used for filling gaps, patching holes, and repairing uneven surfaces, with relatively coarse particles that harden quickly and are difficult to sand after setting. Ready-mixed putty paste is primarily used as a base coat, sets slowly, and has a softer texture after setting, making it easy to sand with sandpaper. It is a good base coat material before applying latex paint.
2. Characteristics of putty powder
Putty powder is a relatively fine powder. It can be mixed directly with water for easy application. Putty powder is typically used for repairing walls. Putty powder can be divided into interior putty powder and exterior putty powder. Exterior putty powder can have functions such as wind resistance and UV resistance. Interior putty powder is more environmentally friendly and therefore does not pose a risk to human health.
3、Characteristics of gypsum powder
Gypsum powder is a high-strength powdered decorative material. Its main component is gypsum. Gypsum powder is produced by grinding gypsum. Gypsum powder must be used in conjunction with other building materials and cannot be used alone. When used with other materials, it is important to pay attention to the proportions. If the proportions or quantities are incorrect, it can lead to mixing failure and prevent proper finishing.
II. Differences between putty powder and gypsum powder
1、Color: In terms of color, the color of the plaster powder is grayish-white, with low gloss and a slightly dark appearance. In contrast, the putty powder is white and has a glossy finish.
2、Tactile Feel: Distinguishing based on tactile feel, gypsum powder is relatively rough and has a granular texture. In contrast, putty powder is smoother and has a more refined feel.
3、Regarding the mixing of gypsum powder: gypsum powder must be mixed with a very viscous liquid such as glue or slurry. Gypsum powder quickly hardens when mixed with water. However, putty powder is much simpler; it only needs to be mixed with water, and it will not harden.
4、Spot Priming: After the walls are dry, if the walls are made of plaster, they will appear slightly yellow, which makes it difficult to apply putty. However, walls made with putty powder will appear whiter and are easier to prime.