Cleaning your paint brushes properly is one of the best ways to protect your investment and keep your tools performing like new. While water works well for latex and acrylic paints, brushes used with oil-based paints, stains, and varnishes often require a solvent-based cleaner.
Mineral spirits are one of the most common solutions for cleaning paint brushes because they help break down oil-based coatings and remove leftover paint from the bristles.
Knowing how to clean a paint brush with mineral spirits properly can help extend the life of your brushes and ensure they stay soft, flexible, and ready for your next project.
Can You Clean Paint Brushes with Mineral Spirits?
Yes, mineral spirits can be used to clean paint brushes that have been used with:
- Oil-based paint
- Oil-based stains
- Varnishes
- Polyurethane
- Certain enamels
Mineral spirits are especially useful because they dissolve oil-based materials that water cannot remove. For water-based paints like latex or acrylic, soap and water are usually the better choice.
Why Use Mineral Spirits Instead of Water?
Trying to clean oil-based paint with water will not effectively break down the coating. The type of paint you used determines the best cleaning method.
For Water-Based Paints, Use:
- Warm water
- Mild soap
- Brush comb or brush cleaner
For Oil-Based Paints, Use:
- Mineral spirits
- Appropriate solvent cleaner
How to Clean Paint Brushes with Mineral Spirits (Step-by-Step)
1. Remove Excess Paint
Before using mineral spirits, remove as much paint as possible. To do so, you can:
- Scrape the brush against the edge of the paint can
- Wipe the brush on a rag or paper towel
- Use a brush comb to remove buildup
The less paint left in the bristles, the easier the cleaning process will be.
2. Pour Mineral Spirits Into a Container
Pour enough mineral spirits into a container to cover the bristles. Avoid soaking the entire brush handle because prolonged exposure can loosen the ferrule or affect the brush construction.
3. Work the Brush Through the Mineral Spirits
Place the brush into the mineral spirits and gently move it around. Work the solvent through the bristles by:
- Pressing the brush against the bottom of the container
- Moving the bristles back and forth
- Separating the bristles with your fingers or a brush comb
You should start seeing paint release into the solvent.
4. Repeat With Fresh Mineral Spirits
For brushes with heavier paint buildup, repeat the process with fresh mineral spirits. The goal is to continue rinsing until:
- The solvent remains mostly clear
- Paint is no longer releasing from the brush
5. Wash the Brush After Using Mineral Spirits
After cleaning with mineral spirits, wash the brush with:
- Warm water
- Mild dish soap
This removes leftover solvent residue and helps restore the brush.
6. Dry and Store the Brush Properly
Once clean:
- Shake out excess water
- Reshape the bristles
- Allow the brush to dry completely
Store brushes hanging or lying flat in a way that protects the bristles. Proper storage helps prevent bent or misshapen brush tips.
Can You Reuse Mineral Spirits After Cleaning Brushes?
Yes, mineral spirits can often be reused. After cleaning brushes:
- Let the container sit undisturbed
- Allow paint particles to settle
- Carefully pour off the clearer solvent from the top
This can reduce waste and help you get more use from your mineral spirits.
Mineral Spirits vs. Paint Thinner for Cleaning Brushes
Mineral spirits and paint thinner are often confused, but they are not always identical. For many brush-cleaning applications, mineral spirits are a common choice.
Mineral spirits:
- Are a specific solvent
- Are commonly used for oil-based paint cleanup
- Offer predictable performance
Paint thinner:
- Is a broader category
- May contain different solvent blends
How Do You Dispose of Mineral Spirits?
Mineral spirits should not be poured down drains or thrown away with regular trash while liquid. Instead:
- Keep used solvent in a sealed container
- Allow paint solids to settle if applicable
- Follow local hazardous waste disposal guidelines
- Always check your local regulations for proper disposal
How to Make Paint Brushes Last Longer
A well-maintained brush can last through many painting projects. Proper cleaning is only part of brush maintenance. To extend brush life:
- Clean brushes immediately after use
- Avoid letting paint dry in the bristles
- Store brushes properly
- Use the correct cleaner for the paint type
- Invest in quality brushes
Final Thoughts
If you need help choosing the right paint supplies, cleaners, or professional-grade tools, visit one of our Benjamin Moore paint stores in NY to speak with our paint experts.