Paints and primers are related but distinct products used in painting and decorating. Paints are liquid or mastic substances used to cover and protect surfaces, while primers are adhesive coatings applied before painting to prepare a surface for better paint adhesion and coverage. Acrylic paints are a water-based and popular choice for their versatility, durability and quick drying time, while oil paints offer rich colors and long-lasting finishes. Choosing between acrylic and oil paints depends on personal preferences and intended use.