What is the Difference Between Paint Thinner and Mineral Spirits?

Paint thinner and mineral spirits are both solvents used to thin and clean paint, but they have some differences in terms of composition, odor, and cost. Here are the main differences between the two:

1. Composition: Paint thinner is a less refined mix of solvents, while mineral spirits are a heavily refined distillation of petroleum. Mineral spirits are made of 100% petroleum distillates and have no additives. Paint thinner can refer to various solvents, including mineral spirits, turpentine, acetone, naphtha, toluene, and others.
2. Odor: Mineral spirits generally have a lower odor than paint thinners. Paint thinners, particularly those containing turpentine, have stronger fumes and should be used in well-ventilated areas.
3. Cost: Mineral spirits may cost around 50% more than paint thinner on a gallon-by-gallon basis, depending on the retailer. Non-mineral spirits paint thinners tend to be cheaper than mineral spirits.
4. Toxicity: Mineral spirits are considered less toxic than other paint thinners. Paint thinners containing turpentine have stronger solvency than mineral spirits.
5. Finish: Paint thinned with mineral spirits dries to a smoother, more even finish.

In summary, mineral spirits is a specific type of paint thinner with a more refined composition, lower odor, and higher cost. However, both can be used interchangeably for thinning oil-based paints and cleaning painting tools.

Comparative Table: Paint Thinner vs Mineral Spirits

Here is a table comparing the differences between paint thinner and mineral spirits:

Both paint thinner and mineral spirits are solvents used to clean and thin paint, but they have different compositions, odors, and costs. Paint thinner is a broader term that can include mineral spirits, turpentine, acetone, naphtha, and other solvents, while mineral spirits are a specific type of paint thinner made of 100% petroleum distillates.