Liquid silica gel is divided into addition molded two-component liquid silica gel and condensation type two-component liquid silica gel. The proportion of addition molded liquid silica gel is 1:1 and the proportion of condensation type liquid silica gel is about 100:2. Whether it is additive liquid silica gel or condensed liquid silica gel, their main components are 107 base glue, silicone oil, white carbon black, etc. The basic characteristics of liquid silica gel can be changed according to the type and proportion of various materials, such as the hardness and viscosity of silica gel. So does liquid silica gel contain water? The answer is yes. In the production process of liquid silica gel, some water needs to be added to produce it. After some liquid silica gel is stored for a long time, the water inside the silica gel will evaporate slowly, resulting in the increase of the viscosity of liquid silica gel, which is often said to be the thickening phenomenon. The evaporation and loss of water in liquid silica gel directly leads to the poor fluidity of silica gel and poor operation. Then someone asked, what happens when the liquid silica gel becomes thick and water is added to the silica gel? In fact, the water content inside the liquid silica gel has a peak, rather than just adding water. The water content inside the liquid silica gel is very small. Can liquid silica gel be added with water before operation? In which case can silica gel add water and in which case can it not?

When condensed liquid silica gel meets dry weather or insufficient water, after adding 2-3% curing agent according to the proportion, the silica gel will show the phenomenon of surface drying and internal non drying. Whenever this happens, the simplest solution is to add 2-3 drops of water to the silica gel. After fully mixing, the silica gel mold can be completely cured and the toughness of the silica gel mold can reach the peak.

Food grade liquid silica gel is more special, because the addition molding silica gel is not cured by water, but by temperature. However, when water is added to the formed silica gel, the silica gel will not solidify. The impurities in the water will directly pollute the formed platinum catalyst, resulting in the inability of silica gel to solidify. When the added liquid silica gel thickens, adding water is not enough. You must add appropriate silicone oil for stirring.