CPI-4628-68 is formulated with high quality synthetic polyalphaolefi n (PAO) basestock, combined with our patented seal swell technology. This lubricant features enhanced oxidation stability and a low pour point, allowing it to operate over a wide range of temperatures. The oil has low volatility, enabling decreased maintenance and significantly reduced lubricant consumption. Our patented seal swell technology minimized ammonia leaks due to poor elastomer performance. CPI-4628-68 is particularly suited for use in ammonia compressors with evaporator temps below -39C. Applications and Compressor Type Ammonia compressors Process gas rotary screw Process gas reciprocating compressors Features and Benefits Patented seal swell technology Minimize ammonia leaks Mineral oil compatible Easier change-over Oxidatively stable Longer system life Low carry-over Improves evaporator efficiency Corrosion protection Enhanced system reliability and reduced downtime Very low pour point Reduced efficiency loss and easier removal of the oil Low volatility Reduced maintenance, reduced top-up Test Procedure ASTM Method Typical Viscosity @ 40 C, cSt ASTM D445 59.1 Viscosity @ 100 C, cSt ASTM D445 9.1 Viscosity Index ASTM D2270 131 Density, g/mL, 20 C ASTM D4052 0.84 Pour Point ( C) ASTM D97 -54 Flash Point, C.O.C., ( C) ASTM D92 266 Fire Point, C.O.C., ( C) ASTM D92 282