HP SEETUL S 68 is a fully synthetic refrigeration compressor oil specially engineered for modern compressors and heat pump systems operating under demanding thermal conditions. Developed from highly refined polyalphaolefin (PAO) base fluids, this lubricant combines outstanding chemical purity, thermal stability, and oxidation resistance to ensure exceptional performance over prolonged service periods. Its naturally high viscosity index and low-temperature fluidity enable it to maintain consistent lubrication and film strength even in extreme temperature variations, far beyond the capabilities of conventional mineral-based refrigeration oils. The product’s excellent lubricity and shear stability allow smooth compressor operation, minimizing wear and friction on critical components such as bearings, pistons, and shaft seals. Its low solubility and miscibility with refrigerants help maintain a stronger oil film in the presence of high-pressure refrigerants, significantly reducing shaft seal leakage and enhancing compressor efficiency. Furthermore, its low volatility and outstanding oxidation stability eliminate issues such as “light end stripping” and oil thickening—common challenges faced when using standard mineral oils. HP SEETUL S 68 demonstrates superior resistance to thermal and oxidative degradation, ensuring clean operation with minimal sludge or deposit formation inside the compressor. This stability makes it ideal for extended drain intervals and low maintenance requirements, resulting in improved operational reliability and lower lifecycle costs.

ISO Viscosity Grade68
Kinematic Viscosity cSt @ 40°C68.0
Kinematic Viscosity cSt @ 100°C10.4
Viscosity Index (ASTM D 2270)145
Pour Point, °C (ASTM D 97)-45
Flash Point, °C (ASTM D 92)250
HP Seetul S 68 barrel