When we use mold liquid silicone to make silicone molds, we will encounter the phenomenon that the silicone and curing agent do not solidify for 24 hours. What is the reason why the liquid silicone does not solidify? Below, Rongxin silicone manufacturer lists four factors and solutions. plan.

Reason 1: The temperature is too low, and liquid silicone will be difficult to solidify below 10°C. This situation generally occurs more in winter. In this case, it can be solved by raising the room temperature to 20℃-30℃.

Reason 2: The ratio of curing agent is correct. Generally, the ratio of condensation silica gel to curing agent is 100:2. If the ratio of curing agent added is too small, it will cause no curing or difficult curing. In addition, the curing agent provided by the manufacturer Generally it is a weight ratio rather than a volume ratio.

Reason 3: The silica gel and curing agent are not fully stirred evenly. If not stirred evenly, it will generally result in partially cured and partially uncured. Therefore, when stirring, pay attention to the residual silica gel on the corners of the container.

Reason four: If the addition type 1:1 or 10:1 silicone does not cure, in addition to the above reasons, it is also possible that the platinum curing agent will interact with tin, phosphorus, ammonium, chlorine, carboxylic acid, mercaptan, hydroxyl and other compounds. Poisoning reaction leads to non-curing. Contact with such compounds should be prohibited during use to avoid non-curing.