The setting time of gypsum powder generally depends on the grade of gypsum powder, and the one with high grade generally sets fast. Gypsum powder and water reaction speed is very fast, the general operation time is only a few minutes, 1 minute of time to sprinkle gypsum powder into water, 2 minutes of stirring, 3 minutes of mold, will soon harden.

一、 建筑石膏粉：在装修粉刷过程中，需要延长石膏粉的凝固时间。不过让石膏凝固速度降慢的方法是在把石膏粉加水的时候使用温度较低的凉水，水越凉凝固速度越慢，反之用热水会很快。如果觉得这个办法不行，还可以加入柠檬酸或者先在石膏粉里掺好腻子粉，在水里掺上108胶白乳胶和纤维素，再调和。

1、 Building gypsum powder: in the process of decoration and painting, it is necessary to extend the solidification time of gypsum powder. However, the way to slow down the solidification rate of gypsum is to use cool water with lower temperature when adding water to gypsum powder. The cooler the water is, the slower the solidification rate will be. On the contrary, hot water will be used quickly. If you think this method is not good, you can also add citric acid, or first mix putty powder in gypsum powder, mix 108 glue white emulsion and cellulose in water, and then mix.

二、 模具石膏粉：如果硬化速度过快，可以往水中加些缓凝剂，如：乙醇(酒精)约占6-8%，可以延长操作时间。一般的模型，使用建筑石膏粉或高度石膏粉。如果铸模用，那需要专门的石膏铸粉。另外需要注意石膏粉与水的比例，水的多少直接影响石膏模的质量。

2、 Mold gypsum powder: if the hardening speed is too fast, you can add some retarder to the water, such as: ethanol (alcohol) accounts for about 6-8%, which can extend the operation time. General model, using building gypsum powder or high gypsum powder. If the mold is used, it needs special gypsum powder. In addition, we need to pay attention to the proportion of gypsum powder and water, the amount of water directly affects the quality of gypsum mold.

以上就是济南石膏粉的凝固时间的介绍，希望可以帮助到大家，更多精彩内容请大家关注：http://www.jnfhjc.com

The above is the introduction of the setting time of Jinan gypsum powder. I hope it can help you http://www.jnfhjc.com