Analysis of the reasons for the low number of mold turnovers in liquid silicone
Dec 19,2023 Hanast
Too much silicone oil is added in the process of making the mold, and the silicone oil destroys the molecular weight of the silicone, so the mold takes less time to reshape and has worse durability. If you use small products with more complex patterns to open molds with high-hardness silicone, the number of mold flips will be reduced, because the silicone will be brittle and easy to break when it is too hard. On the contrary, if low-hardness silicone is used to make molds for building products, the results will also be unsatisfactory. Because the silicone is too soft, its tensile strength and tear strength will be reduced, and the resulting mold will be deformed, so the number of mold turns will be reduced. The quality of the mold glue itself is very good. There is no good or bad silicone rubber, only suitable and inappropriate ones. If we use silicone suitable for the hardness of the product to make the mold, this situation will not happen.
Liquid silica gel products are condensation silica gel. They are solidified by absorbing moisture in the air. During the production process of silica gel, the water is evaporated and the appropriate amount of moisture is not added. This will occur. Phenomenon. Solution: This phenomenon is not a product quality problem, but because the moisture content is not controlled to increase the storage period of the silica gel and the shelf life will be long. As long as you add 0.05% water in an appropriate amount when using silica gel, stir evenly. Some situations can be resolved.