The main component of this diluent is propylene glycol ether ester, which can be used for thinning surface coating paints. This dataset includes major raw materials, auxiliary materials, and energy used in the production process; however, infrastructure such as production equipment and factory buildings is not included within the system boundary of the dataset. The life cycle inventory is compiled from data obtained from multiple sources. The manufacturing process of the diluent includes procedures such as raw material mixing, formulation, and finished product packaging.