Is reducer the same as paint thinner?

No, a reducer and paint thinner are not the same, though they are similar in function. A reducer is specifically designed to lower the viscosity of certain types of paints or coatings, often used to achieve a desired consistency for application. Paint thinner, on the other hand, is a more general term that refers to solvents used to dilute oil-based paints and clean brushes and tools. While both can be used to modify paint, they may consist of different chemical compositions and serve slightly different purposes.