Select Language 
Rubber can exist in two main states: raw rubber and cured rubber.
Raw rubber refers to rubber that has been mixed with various additives and fillers but has not yet undergone vulcanization. At this stage, the material still exhibits high plasticity but possesses poor mechanical strength and elasticity. Its surface tends to be rough and sticky, and it lacks the performance characteristics required for final products.
Cured rubber, also known as vulcanized rubber, is obtained after the vulcanization reaction, during which sulfur atoms form cross-links between molecular chains, resulting in a three-dimensional network structure. This transformation gives the material superior strength, elasticity, heat resistance, and chemical stability.
Vulcanized rubber is widely used in producing various rubber components, such as automotive damping pads, mechanical sealing rings, cable sheaths, and rubber bearings. These products maintain excellent elasticity and sealing performance under high temperature, pressure, or chemical environments, making them essential functional parts in industrial applications.
Rubber can also be classified by its intended use into general-purpose rubber and special-purpose rubber:
General-purpose rubber includes Natural Rubber (NR), Butadiene Rubber (BR), Styrene-Butadiene Rubber (SBR), and Isoprene Rubber (IR).
Special-purpose rubber includes Fluororubber (FKM), Acrylic Rubber (ACM), Chlorosulfonated Polyethylene (CSM), Chlorinated Polyethylene (CPE), Silicone Rubber (VMQ), Polyether Rubber (CO, ECO), and Polyurethane Rubber (PU). These are typically used in harsh or specialized environments requiring oil resistance, heat resistance, or corrosion resistance, particularly in vulcanized rubber parts.
In terms of performance, raw rubber has lower tensile strength, resilience, and aging resistance, while cured rubber exhibits a smooth surface, high elasticity, and superior mechanical properties. Therefore, vulcanization is the key process for producing high-quality rubber components with long service life and reliable performance.
Rubber can exist in two main states: raw rubber and cured rubber.
