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NA-LUBEŽ KR Series - Alkylated Naphthalenes
Synthetic Base Oils and Base Oil Modifiers
For over 50 years, King has been a leader in the alkylation of naphthalenes, and today King is the producer of the world's broadest line of alkylated naphthalene synthetic fluids. Designated the NA-LUBE KR Series, these products are the ideal choice for use as base stocks to meet the industry's highest performance standards where high temperatures degrade petroleum based products or as modifiers for non-polar base stocks, such as Group II oils, Group III oils, and PAO's.
Whether working to develop an innovative new product or to improve an existing product, the NA-LUBE KR Series can help formulators meet today's ever-increasing demands placed on lubricants.
NA-LUBE KR alkylated naphthalenes provide superior thermo-oxidative stability, excellent hydrolytic stability, and greater film thickness compared to alternative base fluids.
PROPERTY |
KR Series |
PAO |
Esters |
Mineral Oils |
Thermo-Oxidative Stability |
Excellent |
Good |
Good to Excellent |
Good |
Thermal Stability |
Excellent |
Excellent |
Excellent |
Excellent |
Hydrolytic Stability |
Excellent |
Excellent |
Poor |
Excellent |
Seal Swell |
Good to Excellent |
Poor |
Excellent |
Poor |
Viscosity Index |
Good |
Excellent |
Excellent |
Good to Excellent |
Additive Solubility |
Good to Excellent |
Poor |
Excellent |
Poor |
Film Thickness |
Excellent |
Good |
Good |
Fair |
In addition, the non-polar nature of the NA-LUBE KR products makes them superior to other synthetic fluids in that there is no surface competition with additives.
With decades of experience in the alkylation of naphthalene, King not only offers products with a diverse ISO viscosity range (22-193 cSt, as shown below) but also can work with you to develop customized products for your specific application.
NA-LUBE KR Series - Typical Properties
PROPERTY |
KR-007A |
KR-007 |
KR-010 |
KR-015 |
KR-019 |
KR-023 |
Kinematic Viscosity @ 40ºC |
21.8 cSt |
35.5 cSt |
72.1 cSt |
114 cSt |
177 cSt |
193 cSt |
Kinematic Viscosity @ 100ºC |
3.8 cSt |
5.5 cSt |
9.2 cSt |
13.5 cSt |
18.7 cSt |
19.8 cSt |
Viscosity Index |
22 |
85 |
103 |
110 |
118 |
118 |
Aniline Point |
40°C |
50°C |
60°C |
94°C |
103°C |
NA |
Noack Volatility, by weight |
39% |
30% |
11% |
2.2% |
1.4% |
<1.0% |
Pour Point |
< -48°C |
< -48°C |
-48°C |
-39°C |
-26°C |
-21°C |
Flash Point |
206°C |
210°C |
220°C |
260°C |
285°C |
310°C |
Density @ 25ºC |
0.92 |
0.91 |
0.89 |
0.88 |
0.88 |
0.88 |
Weight Per Gallon @ 25ºC |
7.7 lbs. |
7.6 lbs. |
7.4 lbs. |
7.4 lbs. |
7.3 lbs. |
7.3 lbs. |
Technical Data Sheet |
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Downloadable KR Series Product Guide
