Paint Thinner (Mineral Spirits) (2026)
Paint thinner, also known as mineral spirits, is a petroleum-based solvent used to thin oil-based paints, stains, and varnishes, and to clean brushes, rollers, and spray equipment after use with oil-based products. Low-odor formulations are available for improved comfort during indoor use. Essential for anyone working with oil-based finishes.
Key Features
- Thins oil-based paints and stains
- Cleans brushes and spray equipment
- Low-odor options available
- Removes adhesive residue
- Degreasing capability
Specifications
Applications
- Thinning oil-based paint
- Brush and tool cleanup
- Spray equipment cleaning
- Adhesive removal
- Surface degreasing before painting
Installation Overview
For thinning: add small amounts to oil-based paint and stir until desired consistency is reached. For cleanup: soak brushes in thinner, work bristles to release paint, then wash with soap and water. Allow used thinner to settle in a sealed container and reuse the clear portion.
Pros & Cons
Pros
- ✓ Essential for oil-based products
- ✓ Effective brush cleaner
- ✓ Can be recycled by settling
- ✓ Low-odor options available
Cons
- ✗ Flammable
- ✗ Strong odor (standard formula)
- ✗ VOC content regulated
- ✗ Must be disposed of properly as hazardous waste
Top Brands
Code Requirements
VOC regulations restrict use in some states. Must be stored away from heat sources. Dispose of as hazardous waste per local regulations. Rags soaked in paint thinner are a spontaneous combustion risk and must be dried flat or stored in water.
Buying Tips
Buy low-odor mineral spirits for indoor use. Allow used thinner to settle and reuse the clear portion to reduce waste. Store in a cool, well-ventilated area away from heat. Spread used rags flat to dry rather than balling them up.
Frequently Asked Questions
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