Opening mold should be careful, talking about the development skills of silica gel mold for silica gel products

There are many ways of forming silica gel products, the most common of which is molding, called molding silica gel products. Since it is molding, it must be supported by the corresponding mold. The development of mold silica gel generally has three ways: brush mold (including slice mold, plane mold, solid mold, etc.), filling mold and wrapping mold. The related points are different, which are described one by one below.

One method is to surround the mold with glue board or wood board, and then fill the mold cabinet with gypsum; the other method is to brush with resin, that is, to brush one layer of resin and paste one layer of glass fiber cloth, then brush and paste, and repeat for two or three layers. It should be noted that sheet mold is easy to deform, so generally an external mold will be made to prevent mold deformation.

Filling mold, simple structure, smooth surface of silica gel products replication more suitable for this way. The method is to first enclose the master mold with rubber plate or glass plate, take a certain amount of cold silica gel and curing agent, mix them evenly, then pour the evacuated silica gel into the mold, after the silica gel is dried and formed, take out the product, and the silica gel of the mold is finished. In the manufacturing of pouring mold, the silicon material with soft hardness is generally used to facilitate the relative easy demoulding, and the products inside will not be damaged.

Brush mold, that is, in the master mold layer (usually three layers) to brush the silica gel. When brushing the first layer, it is required to brush the odor vacuum state of the mold, and the corners shall be fully in place; the second layer shall be pasted with a piece of gauze, and the third layer shall be coated with silica gel, and then it can be completed after curing.

In the production of brush mold, a layer of release agent (or spacer agent) shall be applied on the product or model to be copied first, and then a certain amount of silica gel and curing agent shall be taken, mixed and stirred evenly, and then evacuated (the time shall not be too long). After the silica gel is applied, wait for about one breath of incense time to produce a bonding reaction. Wait for silica gel to dry before making the outer mold.

Silica gel products are not immutable. In the process of development up to now, many classic works have emerged. In the hands of designers and in the continuous market development, more fine products will be recognized by consumers, and mold silica gel will also be carried forward.