6 Best Paint Thinners for Any Job

What Is Paint Thinner?

Paint thinners are solvents used to dissolve oil-based paints, primers and stains, thereby reducing their viscosity (thickness).

Common uses for paint thinner:

• Make paint easier to apply;
• Extend paint’s life;
• Improve spray applications;
• Clean brushes and rollers;
• Wipe up spills and splatters;
• Degrease surfaces.

The most popular types of thinners are derived from petroleum, such as mineral spirits and turpentine. There are also alcohol-based products like denatured alcohol (ethanol) and acetone (a.k.a. nail polish remover), which are commonly used to thin lacquers, shellacs and epoxies (adhesives and primers).

As with any solvent, be sure to read labels carefully for proper use.

Note: Paint thinners are not for use with latex paints and finishes. Thin those paints and finishes with water only.

Safety

Whenever handling paint thinner, Andrew Raker, owner of Clark Paint in W. Springfield, Mass. says, “Always read the caution and safety information on the packaging before use. In most cases, you want a supply of fresh air and good ventilation.”

Precautions to take when working with paint thinners:

• Wear gloves to avoid skin contact;
• Protect eyes with safety goggles or glasses;
• Use a respirator (not the same thing as a face mask).

Flammability

Solvents can be extremely flammable, so disposing of rags and left-over thinner properly is paramount. Never ball up wet rags and toss them into a container because they can spontaneously combust. Instead, rinse them out with water and let dry completely before throwing away.

Storage

Always keep paint thinners in a cool, dry, well-ventilated area, away from heat, ignition sources and, of course, pets and children.

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