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XL7338

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ThermalLube

XL7338

SYNTHETIC POE COMPRESSOR OIL OZONE-FRIENDLY FOR REFRIGERATION COMPRESSORS

The XL7338 POE oils are synthetic lubricants formulated from selected polyolester base stocks
in combination with unique performance-enhancing additives that provide outstanding lubricity,
wear protection, chemical and thermal stability, and proper miscibility. The products are
specifically developed to lubricate compressors and systems components where HFC
refrigerants are used. HFCs are ozone-friendly, chlorine-free refrigerants that are replacing
CFCs (chlorinated fluorocarbons) in the world market.

XL7338 is recommended for all working conditions, from light, intermittent loads to heavy,
continuous loads. XL7338 prevents the build-up of dirt and carbon in valves and other moving
parts of the compressor.

XL7338 POE oil products are available in most standard ISO viscosity grades. They are
suitable for use in domestic, commercial and industrial refrigeration and air conditioning systems
where HFC refrigerants are used. The products meet or exceed the performance requirements
of major compressor and system manufacturers worldwide.

BENEFITS:
XL7338 POE lubricants will provide the following benefits when used with HFC refrigerants:

• High system efficiency• Properly controlled miscibility
• Long lubricant life• Excellent low-temperature fluidity
• Outstanding protection against
compressor wear
• Excellent high-temperature stability
• Excellent hydrolytic stability
TYPICAL SPECIFICATIONS
Product Code: XL7338/010/015/022/032/046/068/100
ISO Grade101522324668100
Viscosity (cSt @ 40°C) (ASTM D-445)10.115.423.631.846.062.595.8
Viscosity (cSt @ 100°C) (ASTM D-445)2.73.64.75.56.98.310.5
Viscosity Index10511711610910410191
Flash Point (°C) 182237245245251254260
Pour Point (°C) (ASTM D-97)-54-54-54-54-51-43-37
Copper Strip Test (100°C for 3 hours)1A1A1A1A1A1A1A
Refractive Index (@ 20°C) (ASTM D-1218)1.4401.4481.4531.4531.4541.4541.455
Specific Gravity (g/ml) (ASTM D-4052) 0.9170.9981.0020.9930.9750.9710.966
Total Acid Number (mg HOH/g) (ASTM D-974) <0.10<0.10<0.10<0.10<0.10<0.10<0.10
Water Content (ppm) (ASTM E-1064)<50<50<50<50<50<50<50
Miscibility, 10% in R-134a (°C) <-60<-65-53-56-50-42-35
Falex Pin/V-Block Test (lb) (ASTM D-3233) 1000140013001200110010701000
Shell 4 Ball Wear Test (ASTM D-4172) 20 kg, 1200rpm, 60°C, 1 hr, scar diam mm0.760.720.790.710.720.830.80
Colour (ASTM D-1500)0.50.50.50.50.50.50.5