"Oil-based" refers to products or substances that use oil as a primary ingredient or solvent. This can include paints, inks, and coatings that rely on oil for their consistency and application. Oil-based products are known for their durability and resistance to moisture, making them suitable for various surfaces, including wood and metal. In contrast to water-based products, oil-based items typically take longer to dry and may require solvents like mineral spirits for cleanup. They often provide a smoother finish and better adhesion, which is why they are commonly used in home improvement and artistic applications.