The early rubber was made from latex of rubber trees, rubber grass and other plants, and was made of elastic, insulating, water-impermeable and air-resistant materials. Highly elastic polymer compound. Divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from plants such as rubber trees and rubber grasses; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in various aspects of industry or life.

So what types of rubber can be divided into?
1. According to the source and method of raw materials: rubber can be divided into two categories: natural rubber and synthetic rubber. Natural rubber consumption accounts for 1/3, and synthetic rubber consumption accounts for 2/3.
2. According to the appearance of rubber: rubber can be divided into four categories: solid rubber (also known as dry rubber), milk rubber (referred to as latex), liquid rubber and powder rubber.
3. According to the performance and use of rubber: In addition to natural rubber, synthetic rubber can be divided into general synthetic rubber, semi-generic synthetic rubber, special synthetic rubber and special synthetic rubber.
4. According to the physical form of rubber: rubber can be divided into hard rubber and soft rubber, raw rubber and rubber compound.
5. According to performance and use: general rubber and special rubber.