Silicone rubber raw materials shall be evenly mixed with the curing agent, otherwise it will be dry in the surface or uneven curing. This will cause the scrapping of the mold, which shall be avoided as much as possible. If the size of this product is very large, brush mold must be used. Although filling mold saves labor, time and effort, it is very expensive

Because the large products are filled with mold, on the one hand, the waste of silicone rubber increases the cost, and on the other hand, the product is too heavy, which will easily crush the silicone rubber mold, resulting in deformation or fracture. However, if you choose to brush the mold, you can add a few layers of gauze inside to increase the flexibility and strength of the mold. In addition, the support of the outer mold is naturally not easy to be crushed or deformed.

Select the silicone rubber with appropriate hardness according to the size of the product

1 for small products, generally soft silicone rubber is more suitable, because when the silicone rubber is strong, the mold will be very brittle, and it is easy to break the small parts of the product, which will also cause the mold to be not durable.

2 large products, such as stone and cement products, are so hard and heavy in this province. If the soft mold silicone rubber material is selected, the mold is more likely to be crushed. Because the silicone rubber is too soft, its tensile and tear strength will be reduced, the mold will be deformed, and the service life will naturally be reduced.