Long Oil (45/55)

Long Oil (45/55) is a type of alkyd resin characterized by its high oil content—typically 45% oil to 55% resin—which results in a flexible, durable film once cured. It is widely used as a binder in oil-based paints, varnishes, and industrial coatings due to its excellent adhesion, gloss retention, and water resistance. The "long oil" designation refers to the proportion of drying oil (usually linseed, soybean, or tall oil) in the resin formulation, which makes it particularly suitable for air-drying applications. This resin is most commonly used in architectural coatings, primers, anticorrosive coatings, and decorative finishes. Its slow drying nature offers better flow and leveling, especially for brushing applications. It is also valued for its compatibility with a wide range of pigments and solvents.