1. Why does the mold silicone rubber have less mold turnover times?

Too much silicone oil is added in the process of making the mold. Silicone oil destroys the molecular weight of silicone rubber, so the mold will be turned over less times and not durable. If you make small products with complex patterns and use silicone rubber with high hardness to open the mold, there will be less mold turnover times, because the time when the silicone rubber is hard will be very brittle and easy to break. On the contrary, if you build products and use silicone rubber with low hardness to make molds, the result will also be unsatisfactory. Because the silicone rubber is too soft, its tensile and tear strength will be reduced, and the mold will be deformed, so the number of mold turnover will be reduced. The quality of mold glue itself is very good. There is no difference between good and bad silicone rubber, only suitable and unsuitable. If we use silicone rubber suitable for the hardness of the product to make the mold, this situation will not occur.

2. Why does silicone die burn?

Because unsaturated resin and resin products with peroxide curing agent will generate a lot of heat in case of resin reaction. Generally, the resin curing time is 3 minutes, so demoulding shall be carried out as soon as possible after 3 minutes, so as to prevent the silicone rubber mold from burning.

3. Why does the mold silicone rubber appear dry on the surface but not in the inside?

Mold silicone rubber belongs to condensation silicone rubber, which is solidified by absorbing water in the air. This phenomenon occurs when the water is evaporated dry without adding an appropriate amount of water in the process of making silicone rubber. Solution: this phenomenon is not a product quality problem, but because the water content is not controlled and the storage life of silicone rubber is improved, some phenomena will appear for a long shelf life. As long as 0.05% water is added appropriately and stirred evenly when silicone rubber is used, some problems can be solved.

4. Why is there a tension difference between the mold silicone rubber?

In order to reduce the viscosity of silicone rubber and make silicone rubber easy to operate, customers add a large amount of silicone oil to silicone rubber in the process of making molds, which will make silicone rubber very soft, resulting in non tensile resistance, reduced tear strength and poor tensile force, resulting in non durable molds, short service life and less turnover times.

5. Why does the mold leak oil?

The mold silicone rubber itself will not emit oil. The oil emission is due to the addition of composite silicone oil (the compound of silicone oil and white mineral oil) in the operation process, because white mineral oil is a petrochemical product, not silicone oil.

6. Why is the mold not resistant to acid and alkali and aging?

In the process of making silicone rubber mold, we suggest that customers should not add any silicone oil. If necessary, the amount of silicone oil should not exceed 5% ~ 10%. Because excessive addition of silicone oil will destroy the molecular weight of silicone rubber, the mold will not be acid-base resistant and aging resistant.

7. Why does the mold made of silicone rubber have traces, stripes and unsmooth on the surface?

This phenomenon occurs because the product or model to be copied is not polished or polished. In fact, the model or product itself is not smooth or perfect, so if the product or model to be copied has not been polished or polished, the mold made of good silicone rubber will be unsightly and not smooth enough. There is also a case that the mold is not smooth if it is not painted evenly when the release agent is applied.