diesters are manufactured to extremely high standards. They are highly etherified, with minimal carboxylic residues. Relative to conventional base stocks, DIESTERS provide superior performance. They have good thermal stability, high viscosity index, and good low temperature fluidity.

 

DIESTERS can either be made from a dibasic acid and monofunctional alcohols, or from a diol and fatty acid.  As the name implies, these have two ester groups per molecule which means that the molecular weight and viscosity will normally be higher than simple esters.  Diesters generally have low pour points, excellent lubricity and thermal stability and disperse soot and particles well.  The viscosity index is high although some are lower than simple esters at the same viscosity.  They are also completely biodegradable. 

 

DIOLUBE DIBASIC DIESTERS

The Diolube line of Dibasic Diesters is made from adipic acid and different oxo alcohols.  These are excellent for low temperature applications, with pour points below -60C, and are available at viscosities between 7.5 and 31 centistokes at 40C.  The higher molecular weight versions can be used over a particularly wide range of temperatures.  They are clean burning and do not contribute to varnish and other residues, so are appropriate for engine oils, high temperature chain oils and compressor lubricants.  Adipate esters are also excellent plasticizers for PVC when health concerns rule out phthalate esters.

 

SPECIFICATIONS: Viscosity CST Viscosity Index  SPECIFIC GRAVITY POUR POINT  FLASH POINT FIRE POINT 
ASTM D2270 20/20 C ASTM D97 C ASTM D92 C ASTM D92 C
ADIPATE ESTERS 40C 100C      
DIOLUBE 2010 di 2-ethyl hexyl adipate 7.50 2.30 120 0.927 -60 201 229
DIOLUBE 2020 di-ISO-octyl adipate 8.90 2.60 146 0.929 -79 196 229
DIOLUBE 2030 di-3,5,5-trimethyl hexyl adipate  12.80 3.40 152 0.917 -37 204 235
DIOLUBE 2040 di-isodecyl adipate 14.10 3.10 148 0.912 -60 235 254
DIOLUBE 2050 di-tridecyl adipate 31.00 5.20 160 0.914 -51 246 279

 

 

OTHER DIESTERS

 

SPECIFICATIONS: Viscosity CST Viscosity Index  SPECIFIC GRAVITY POUR POINT  FLASH POINT FIRE POINT 
ASTM D2270 20/20 C ASTM D97 C ASTM D92 C ASTM D92 C
DIESTERS 40C 100C      
DIOLUBE 3010 di-iso-octylazelate 12.50 3.40 158 0.921 -60 218 249
DIOLUBE 3020 di-2-ethyl hexyl sebacate 11.90 3.30 149 0.917 -60 221 252
DIOLUBE 3030 di-3,5,5 trimethyl hexyl sebacate 18.10 4.50 183 0.909 -42 224 255
DIOLUBE 3040 di-tridecyl phthalate 81.6 8.30 150 0.956 -29 257 285

 

 

SAFETY 

Diolube Dibasic Diesters do not require special handling. Handle in accordance with good industrial hygiene and safety practices. Avoid eye contact by wearing personal protective equipment. If eye contact occurs, wash with flowing water and contact physician. Avoid repeated or prolonged skin contact. Avoid breathing vapors by providing adequate ventilation. Always refer to the Material Safety Data Sheet (MSDS) for detailed information on safety.

 

STORAGE & HANDLING 

Diolube Diesters have an almost unlimited shelf life when properly stored in closed containers. Always refer to the Material Safety Data Sheet (MSDS) for detailed information on handling and disposal.

 

PACKAGING 

Diolube Diesters are available in bulk, tank trucks or rail cars.