"Oil-based" refers to products or substances that use oil as a primary ingredient or solvent. This can include paints, inks, and cosmetics, which often rely on oil to provide a smooth application and enhance durability. Oil-based products are known for their rich colors and long-lasting finishes, making them popular in various industries, including art and construction. In contrast to water-based products, oil-based items typically take longer to dry and may require specific solvents, like mineral spirits, for cleanup. They are often favored for their ability to adhere well to surfaces and resist moisture, making them suitable for both indoor and outdoor applications.