How do solvent-based and water-based coatings differ in cleanup?

• A. Water-based coatings require solvents for cleanup.
• B. Solvent-based cleaners use solvents; water-based cleaners use water; different VOC profiles.
• C. Solvent-based coatings clean with water only.
• D. Both use water; VOCs are identical.

Answer: (C)

The way you clean up depends on what the coating uses to stay in suspension. Water-based coatings are dispersed in water, so tools and surfaces can be cleaned with water (often warm water with a bit of soap). Solvent-based coatings rely on organic solvents to dissolve the film, so cleanup requires those solvents (like mineral spirits) and proper ventilation, with attention to flammability and disposal. Because of the different cleanup media, the VOCs associated with cleanup also differ—water-based products typically have lower VOCs, making cleanup emissions generally lower. In short, wash with water for water-based coatings, and use appropriate solvents for solvent-based coatings, following safety and disposal guidelines.