What is the Difference Between Mineral Spirits and Denatured Alcohol?

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The main difference between mineral spirits and denatured alcohol lies in their composition:

  • Mineral Spirits: These are made from petroleum, a type of fossil fuel found underground, and are refined to create various products, including mineral spirits. Mineral spirits are used for thinning oil-based products like paint, stains, and finishes. They have low acute toxicity and are slower evaporating, making them suitable for residential use.
  • Denatured Alcohol: This is made from ethanol, which is derived from plants. Denatured alcohol is typically used to thin shellac and is a good choice for cleaning or working with shellac finishes. It has high toxicity and is known to be smelly and toxic.

In summary, denatured alcohol is a plant-based solvent that is good for thinning shellac, while mineral spirits are a petroleum-based solvent better suited for thinning oil-based paints and cleaning surfaces.

Comparative Table: Mineral Spirits vs Denatured Alcohol

The main differences between mineral spirits and denatured alcohol are their composition and uses. Here is a table comparing the two:

Feature Mineral Spirits Denatured Alcohol
Composition Petroleum-based, made from refining crude oil Ethanol-based, derived from plants, with added additives to make it toxic and unfit for consumption
Appearance Clear Violet color
Uses Better for thinning oil-based paints, stains, and finishes Good for cleaning or working with shellac finishes, and thinning shellac
Toxicity Low acute toxicity High toxicity due to added additives

Both mineral spirits and denatured alcohol are solvents, but they have different compositions and applications. Mineral spirits are petroleum-based and better suited for thinning oil-based products, while denatured alcohol is ethanol-based and used primarily for cleaning or working with shellac finishes.