Q&A: How can I tell a water-based paint from an oil-based one?

Consumer Reports News: September 17, 2009 01:23 PM

I've read that water-based paints are easier to clean up than oil-based finishes. How do I know whether I'm buying a water-based or an oil-based paint?

About 80 percent of paint sold today is water-based; the rest is oil-based. Oil-based paint is considered more hazardous than water-based paint because the solvents used to make it are toxic and flammable. Note that you can recycle both types.

Water-based paint often has the word "latex" as part of the product name. Ingredients include water and ethylene or propylene glycol. Water is indicated for cleanup.

Oil-based paint often has the word "alkyd" as part of the product name, and the label will indicate "caution" and "flammable" or "combustible." Ingredients include petroleum distillates or mineral spirits. Cleanup method indicates the use of paint thinner, mineral spirits, or turpentine.

Essential information: Fall is a great time to tackle interior-painting projects. If you're painting rooms inside your home, read our latest report on interior paints (article and ratings available to subscribers) and visit our paints page for details on specialty paints, tools you'll need for your project, and tips on avoiding common painting mistakes.

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Q&A: How can I tell a water-based paint from an oil-based one?

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