Urethane Grade Castor Oil

Urethane Grade Castor Oil is a highly refined, high-performance natural polyol specifically optimized for polyurethane and prepolymer manufacturing. Characterized by tightly controlled hydroxyl functionality, exceptionally low moisture content, and precise acidity levels, this premium grade ensures consistent reactivity and stability in sensitive PU systems.

Derived from selected Ricinus communis seeds, it retains the natural ricinoleic acid structure that makes castor oil a unique bio-based polyol. Unlike standard industrial grades, Urethane Grade is processed to minimize impurities that can cause side reactions, foaming, or inconsistent curing. It is the material of choice for formulators seeking reproducible results in isocyanate-terminated prepolymers, cast elastomers, and high-performance adhesives.

Typical Applications

• Polyurethane Elastomers & Prepolymers: Serves as a primary natural polyol in cast elastomers, industrial rollers, and mining screens, offering superior hydrolysis resistance and flexibility. It is a critical backbone for stable isocyanate prepolymers.
• PU Coatings, Adhesives & Sealants: Widely used in moisture-cure and two-component coatings for metal and concrete, providing excellent adhesion and chemical resistance. In sealants and joint fillers, it enhances tack, elasticity, and long-term durability.
• Specialty Polymers: Ideal for impact-resistant linings and flooring systems where a balance of hardness and flexibility is required. It allows for increased renewable content in formulations without compromising mechanical performance.