Plasticizers are compounds which increase the plasticity of a material, are also compatible with polymer, and their migration from the resin is limited. In other words, plasticizers are more stable and durable in formulations and products and do not leave the product under the effect of heat or other liquids. The most important reason for using plasticizers is reducing the transfer temperature of polymer glass, the amount of plasticizers decrease the glass transition temperature of a polymer is often considered as a simple measure of plasticizer performance. Plasticizers can also affect other properties of polymers such as degree of crystallization, optical clarity, electrical conductivity, fire behavior and resistance to biological degradation. Phthalate-based plasticizers have mainly used in recent years, but due to adverse environmental effects, their consumption is decreasing and plant-based plasticizers have been completely replaced. From the properties of plasticizers produced by Pak Chemical Co. in comparison with other alternative plasticizers, following items can be mentioned: - Related viscosity and stability are higher and does not change over the time. - Has less volatility and less softener loss in processability. - Has high compatibility with polymer. - Due to less migration, it has higher resistance and durability. - Has minimal damage for environment. Plasticizers produced by Pak Chemical Co. in different grades can be completely replaced and used with plasticizers such as DOP, DOA, TOTM, DINP, DOTP. the main use of these plasticizers is to produce soft PVC products in artificial leather, toys, shoes, hose, cable, soft granules, tape, gloves, tablecloths, wallpaper, transparent films, food packaging, cellophane and stretch film, refrigerator washers, oxygen masks, floor-covering and also its low consumption in hard products such as Pipes, fittings, profile and wall coverings are used to solve problems of strength and non-impact. This softener can also be used in paint and rubber industries.