After wall putty powder on dry faster solution

On the wall putty powder dry fast mainly include external cause and internal cause and number of influence factors, such as scraping thickness. External cause is mainly the wall wet and the temperature and humidity, illumination, etc.; Internal cause is the ratio of raw material and additive proportion of putty itself; Batch of scraping thickness also affects the drying speed of putty on the wall.


1. The wall is too dry, if the wall is too dry, absorbs a large number of moisture, inside the putty putty powder on the wall after will dry quickly. In this case, the first to check the wall dry humidity, in be bored with child before water spray on the wall, to stay without MingShui rear can construction.


2. The temperature is too high: high temperature, strong light, moisture evaporates faster, putty on the wall after done faster. Especially in the summer, to avoid high temperature, strong light during the batch blow be bored with child, choose in the morning and evening time to the construction of low temperature. In addition, to make cellulose ether ingredients a bit add quantity, increase water retention, reduce moisture to evaporate too quickly.


3. The quality of the putty: some manufacturers in order to save costs, cement and ash calcium applied in putty ingredients. Putty with high alkalinity in the cement, can cause hydration too fast and causes loss of plastic too fast, the construction time is shortened; Calcium ash water quantity is large, if the amount is big, also can cause dry faster when putty on the wall. So when the ratio of raw materials, to reduce or not high alkalinity cement, reduce the dosage of the ash calcium, if there is no special purpose, be in usually, ordinary putty only need to add 150-200 kg ash calcium is enough.


4. Additives: add one of the most commonly in the putty is cellulose ether, mainly plays a role of water. Adding cellulose ether, choose a cellulose ether of reliable quality, poor quality, poor putty water, batch of difficulties. The viscosity of cellulose ether also wants moderate, high viscosity, batch blow is too thick, hard; Low viscosity, water retention is not enough, it is easy to do. Generally in ash calcium for 200 kg of putty powder, add 3 or 4 kg viscosity HPMC for 40000. Also can consider to add some wood fiber, the price is cheap, can water thickening, you can also add a small amount of starch ether, increase the construction, batch of scraping light non-stick knife handle.

Zhejiang zhongwei chemical co., LTD



 

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