Tools and Materials
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What Are Paint Thinners?
The term “paint thinner” generally refers to solvents that change the consistency of paint and similar products. You can use paint thinners for thinning paints, enamels, stains and varnishes to a consistency that will create a smoother finish. Thinners are especially handy when working with old paint that has dried or paint that has thickened. You can use paint thinner to clean paint brushes, rollers and accessories. Paint thinners also clean accidental splatters and spills.
Most paint thinner is highly flammable and releases dangerous fumes. When working with paint thinner inside, ensure the space is well-ventilated. Open windows and doors. A fan can also help ventilate the space. Always wear safety goggles or splash-proof safety glasses, chemical protection gloves and a respirator as specified by the paint and paint thinner manufacturers. You'll also need to wear long pants and a long-sleeved shirt.
How to Use Paint Thinner to Thin Paint
Typically, a paint to thinner ratio of 3:1 (three parts paint, one part thinner) or 4:1 is sufficient for most DIY jobs. Use too much and the paint will become too thin and cause streaking as you paint. If you’re using a paint sprayer, you’ll need a thin enough mixture so that it easily flows through the sprayer nozzle.
Always check the paint label for the manufacturer’s recommendation for the use of the product.
Using a Paint Thinner to Thin Paint
Using a Paint Thinner to Strip Paint
Using a Paint Thinner to Clean Paint Brushes and Accessories
How to Store Paint Thinner
Once you’ve finished with the paint thinner, it should be stored in an appropriate container. A glass container or metal paint bucket is best, but plastic will work also for some thinners — check the product storage instructions. Make sure the paint thinner container is properly sealed. Leaving it uncovered for long periods can cause the thinner to evaporate. Paint thinner lasts best when stored in a cool, dry, well-ventilated environment. Don’t store it near flammable items. Store it out of the way of children and pets.
If paint thinner is exposed to heat, it can evaporate, catch fire or explode.
How to Dispose of Paint Thinner
The painting is done, the brushes have been cleaned and the spilled paint has been wiped away. What’s next? One very important thing you need to remember is how to dispose of paint thinner.
Even though it’s a liquid, you may be tempted to treat paint thinner like water and pour it down the drain. Never pour paint thinner down the drain. Not only is it a fire hazard, but it’s considered a hazardous waste product and should be disposed of properly.
The paint thinner should be stored in a metal or glass airtight container and taken to your local waste management facility for proper disposal.