The difference between a rubber adhesive and a rubber additive lies in their roles and functions. A rubber adhesive is a chemical used to bond rubber materials together. Its main function is to provide adhesion and bonding so that rubber materials can be effectively bonded together. Rubber adhesives can be used to bond, join, or repair various rubber products such as rubber sheets, rubber parts, and rubber hoses. Rubber additives, on the other hand, are a class of chemical additives used to improve the processing properties and performance characteristics of rubber products. Rubber additives can be divided into various types, including plasticizers, antioxidants, antioxidants, accelerators, fillers and so on. Different types of rubber additives have different functions, such as improving the softness of rubber, abrasion resistance, weather resistance, anti-aging properties, and enhancing the hardness of rubber.