Plastic rubber additives are substances incorporated into plastic and rubber materials to enhance their properties. These additives can improve characteristics like flexibility, durability, UV resistance, and heat stability. Common examples include plasticizers for increased flexibility, UV stabilizers to prevent sun-induced degradation, and fillers to improve strength. Rubber additives might include accelerators, which speed up the vulcanization process, or antidegradants to prolong rubber life. These additives play a crucial role in tailoring plastic and rubber materials for a wide range of applications, from packaging and automotive parts to footwear and industrial equipment.