Gypsum powder is often used in home decoration materials, but gypsum powder needs to be mixed twice before you can use, some water can be mixed, some need to add a special glue or color. If the deployment of the inappropriate not only affect the construction effect, the use of time will also be greatly shortened, generally these things are professional decorators, but they have to understand some of the knowledge in this regard, in the construction of the workers can be more supervision to remind the plaster powder to play the best decorative effect.

Mixing ratio

Plaster powder mixing ratio of 28 (water): 100 (gypsum powder), this mixing ratio is the highest mixing ratio, the production of gypsum products can achieve the effect of ceramic tiles, the surface of the fingernail can not be scratched traces. However, according to this mixing ratio of gypsum powder, it is too difficult for novices, the precise mastery of the mixing ratio, the choice of mixing containers, mixing techniques, solidification time are not good control. Therefore, it is generally recommended to use the ratio of 35:100 to mix the plaster powder, you can also achieve very good results.

Dispensing plaster powder order

First add water and then add gypsum powder, remember that this is very important, the first powder after the water gypsum powder is difficult to mix to a very uniform, the hardness of gypsum and the degree of uniformity of mixing is directly proportional to the mixing of the more uniform, the higher the fastness. 3, solidification time mastery - solidification time is mainly related to the amount of water (additives separately), followed by mixing time, casting containers, temperature, humidity has a relationship. First of all, water, gypsum powder mixing ratio, the more water gypsum coagulation time is longer, the lower the density of gypsum, the lower the fastness, the less water coagulation time is shorter, the higher the density, the higher the fastness, according to the use of the specific needs to control.

Stirring time

Generally speaking, stirring to the gypsum powder is very uniform can be cast, generally controlled within 5 minutes, the longer the stirring time, the faster the gypsum powder solidification time. The relationship between casting container and solidification time, casting into a non-absorbent container (silicone molds, etc.) casting solidification time remains unchanged, casting into an absorbent container (such as cardboard boxes, wooden boxes, etc.), the solidification time is shortened. This is better understood, plaster powder within the water powder is absorbed by the mold, of course, solidification time is short. Temperature, humidity and solidification relationship, the higher the temperature, the shorter the solidification time, the lower the temperature, the longer the solidification time, the higher the humidity, the longer the solidification time, the lower the humidity, the shorter the solidification time.

Bubble elimination

Gypsum powder mixing will inevitably produce bubbles, which is a headache for many players, the better solution such as defoamer, vacuum mixing, the effect is very good but the cost is too high and is not desirable, here to introduce a few small ways to reduce the bubbles, first of all, full mixing is to reduce the key to the bubbles, the second! After mixing the gypsum powder solvent slightly placed so that the internal bubbles float to the surface (or gently vibrate to make bubbles float), and then use the touch gun to blow away the surface bubbles, and the characteristics of gypsum powder solvent, bubbles are generally concentrated in the solvent on the upper layer, the sinking of the bubble content is relatively small, such as the need to reduce the air bubbles can be taken after mixing of the lower layer of the solvent.

Gypsum powder, if the debugging is reasonable, and then supplemented with pigments, will play a very good decorative effect, but the mixer must be careful and careful to carry out, in the proportion of the mixing to pay attention to, or in the construction of the construction will lead to the application of difficult or uneven. The blending order also has specific requirements, mixing time as long as it is reasonable, it can be mixed to the best state, gypsum powder is not only inexpensive, but also easy to construct, so many families will use it as the main wall decoration materials.

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