WHAT ARE PLASTIC AND ADDITIVE? Plastic is a common term to describe various synthetic or semi-synthetic materials used in a wide and growing range of applications. Natural products such as cellulose, coal, natural gas, salt, and of course crude oil are used as raw materials in the manufacture of plastics. The additive is a substance added to something in small quantities to improve or preserve it. Plastics additives are all chemicals that are used to polymerize, processor to modify the end-use properties of plastics. WHAT DO THEY DO? Additives are substances that are needed to produce plastic that is suitable for its intended purpose. The correct choice of additive is essential to ensure the product does what is needed, and additives can considerably alter the properties of a material. WHY ARE ADDITIVES ADDED TO PLASTIC? To avoid plastics materials from getting to be difficult and fragile at moo temperatures, or delicate and sticky at tall temperatures, added substances ar...