Traditional Culture Encyclopedia - Traditional festivals - Which is better, putty powder or latex paint?
Which is better, putty powder or latex paint?
Good putty powder should have the following properties:
1, flexibility
Flexibility refers to the property that a material will deform without deformation under the action of external force.
2. Water resistance
The water resistance of putty powder reflects the bonding strength of putty after soaking in water or moisture regain. According to the relevant observation and statistics, the reason why the architectural coating layer falls off is that the putty has an alkali resistance of 2.5 after being wetted. Because putty is in direct contact with cement mortar or lime mixed mortar base, it is often in a wet state, so putty is required to have good alkali resistance.
3. Polishing performance
Blowing putty generally uses sand to polish the surface smoothness to meet the decoration requirements. The difficulty of grinding is usually called "grindability". Abradability is usually inversely proportional to the bonding strength, hardness and surface smoothness of putty. For grindability, after the putty film was dried at constant temperature and humidity for 24 hours, 200g weight was added and polished with 300 # water sandpaper 100 times to observe the surface phenomenon of the putty film.
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