The difference of materials:
Silicone mold is a special mold glue for making handicrafts. Generally, silicone and curing agent are mixed and stirred evenly according to a certain ratio, and then cured at room temperature or under heating conditions. It has the characteristics of high temperature resistance, corrosion resistance, strong tear resistance, and high precision simulation. Silica gel is a thermosetting material, which is generally injection molded. The fluidity of silica gel is good, so the silicone mold does not need to use boiling water, and the price is cheaper than plastic molds.
Plastic mold is an abbreviation of a combined mold used for compression, extrusion, injection, blow molding, and low foam molding, so it is also called: plastic mold or injection mold. It has the characteristics of processing different shapes of plastic parts. In the past, domestic factories were called plastic factories, while in Hong Kong and Taiwan, plastic factories were called plastic companies. Plastic is a thermoplastic material, and injection molding molds are generally used. Plastic molds have the title of mother of industry, and many new product releases now involve plastics.

The difference in structure:
The material of the silicone mold is mold silica gel. The general structure is composed of five components: base, crosslinking agent, catalyst, filler and additive. In fact, base, crosslinking agent and filler are one component, and the catalyst is separated. As a component, this is why mold silicone is a two-component room temperature silicone.
The structure of the plastic mold mainly includes a female mold with a variable cavity composed of a female mold combined substrate, a female mold component and a female mold combined card board. The convex mold combines the substrate, the male mold component, the male mold combined card, and the mold A punch with a variable core composed of a cavity cut-off component and a side-cut combined plate. In order to improve the performance of plastics, various auxiliary materials must be added to the polymer, such as fillers, plasticizers, lubricants, stabilizers, colorants, and so on.

The difference in use:
According to physical properties, silica gel raw materials can be divided into solid silica gel and liquid silica gel. Solid silica gel is mainly used for molded products. For example: silicone sleeves, silicone tableware, silicone molds, silicone buttons, etc. Liquid silicone is mainly used for extruded products, such as silicone pacifiers, silicone tubes, etc.
Plastic parts are widely used in every field of life today, such as household appliances, instrumentation, wires and cables, construction equipment, communication electronics, automotive industry, aerospace, daily hardware, etc. The application of plastic is so wide and the use is so convenient that it has brought side effects. In some areas, people have to implement "plastic bans."
Nowadays, environmental protection is a focal issue that people are paying attention to. Silica gel is a new type of environmentally friendly raw material. With the development of society, the future development prospect of silica gel is still great, and it is bound to get better and better. There are more uses for silica gel. It will also be discovered slowly. In contrast, plastic is very harmful to environmental protection. If a reasonable solution cannot be found, it will be replaced by silica gel.
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