Ordinary putty is a finished product, which can be used by adding water and stirring. If the putty bag on the market is generally 20kg, each bag (twice) can reach the living area of 8- 12m2, and there will be great differences according to the flatness of the wall, the actual packaging capacity of putty, the thickness of putty bag or the number of times it is added! If you survive twice according to the normal range, each set 10 square meter, and survive three times is 7 square meters! Take the total brushing area of 200 square meters as an example, 20 packs for two times and 28-30 packs for three times.
Putty powder is a kind of building decoration material, and its main components are talcum powder and glue. I just bought a layer of white putty on the surface of a rough house. Generally, the whiteness of putty is above 90 and the fineness is above 330. Putty is a kind of base material used for repairing and leveling walls, which lays a good foundation for the next decoration (painting and wallpaper pasting). Putty can be divided into interior wall and exterior wall. Exterior wall putty is wind-proof and sun-resistant, so it has high viscosity, high strength and slightly lower environmental protection index. Internal wall putty has good comprehensive index, is healthy and environmentally friendly, so the internal wall does not need external coating, and the external wall does not need internal coating. Usually putty is gypsum or cement-based, so rough surfaces are easier to bond firmly. However, during construction, a layer of interface agent should be painted on the base to close the base and improve the adhesion of the wall, so that putty can better bond with the base.