Material differences:

Silica gel mold is a special mold adhesive for making handicrafts. Generally, silica gel and curing agent are mixed according to a certain proportion, and then cured at room temperature or heated conditions. It has the characteristics of high temperature resistance, corrosion resistance, strong tear resistance and high simulation precision. Silica gel belongs to thermosetting material, which is usually pressure injection molding. The fluidity of silica gel is good, so the silica gel mold does not need to use the boiling water mouth, and the price is cheaper than the plastic mold.

Plastic mold is a kind of combined mold for compression, extrusion, injection molding, blow molding, and low foaming molding, so it is also called plastic mold or injection mold. It has the characteristics of processing plastic parts of different shapes. In the past, factories in China were called plastic factories, while those in Hong Kong and Taiwan were called plastic companies. Plastic is a thermoplastic material, usually using injection molding mold. Plastic mold has the title of "mother of industry". Now many new product releases will involve plastics.

Structural differences:

The material of silica gel mold is mold silica gel. The general structure is composed of five components: base gum, crosslinking agent, catalyst, filler and additive. In fact, the base gum, crosslinking agent and filler are one component, and the catalyst is taken as a single component. This is why mold silica gel is the origin of two-component room temperature silica gel.

The structure of the plastic mold mainly includes a die with variable cavity composed of a die combination base plate, a die assembly and a die combination card plate, and a punch with a variable core composed of a punch combination base plate, a punch assembly, a punch combination card plate, a cavity cut-off component and a side section combined plate. In order to improve the properties of plastics, it is necessary to add various auxiliary materials, such as fillers, plasticizers, lubricants, stabilizers, colorants and so on.

The difference of usage:

Silica gel raw materials can be divided into solid silica gel and liquid silica gel according to their physical properties. Solid silica gel is mainly used for molding products. For example: silicone cover, silicone tableware, silicone mold, silicone button, etc. liquid silicone is mainly used for extrusion molding products, such as silicone nipple, silicone tube, etc.

Plastic parts are widely used in every field of today's life, such as household appliances, instruments, wires and cables, construction equipment, communication electronics, automobile industry, aerospace, daily hardware, etc. Plastic is so widely used and convenient to use that it has brought side effects. In some fields, people have to carry out "plastic ban".

Nowadays, environmental protection is a focus of people's attention. Silica gel is also a new type of environmental protection raw material. With the development trend of society, the future development prospect of silica gel is still great, which is bound to get better and better, and more uses of silica gel will be slowly explored. In contrast, the harm of plastic to environmental protection is great, if we can not find a reasonable solution, it will be replaced by silica gel.