Mk-6733V
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MK-6733V Core Advantages

  1. Ultra-Low Temperature Oil-Specific PMA Additive: A high-performance polymethacrylate viscosity index improver tailored for equipment operating in extremely cold environments (down to -50℃), including aviation oils and high-performance shock absorber oils.
  2. Strong Thickening & VI Improvement: Delivers exceptional thickening ability (6.91) and outstanding viscosity index boost (up to 247 in formulations), ensuring stable viscosity across extreme temperature ranges.
  3. Superior Low-Temperature Performance: Excellent pour point reduction (down to -51℃ in tested base oils) and low Brookfield viscosity at -40℃, ensuring reliable fluid flow in harsh cold conditions.
  4. Balanced Shear Stability: Reliable shear resistance with controlled PSSI values (Diesel Injector Shear 250 Cycles: 17.45%, KRL 20h: 63), maintaining consistent viscosity under mechanical stress.
  5. Versatile Formulation Compatibility: Engineered for multi-functional use in various ultra-low temperature applications, offering good solubility and compatibility with base oils and other additives for flexible formulation design.

Polymethacrylate PMA additive Viscosity Index Improvers for Ultra-low Temperature Oil

Ultra-low temperature oil is widely used in mechanical equipment operating in extremely cold regions where temperatures can drop as low as -50℃. Such harsh environments place extremely high requirements on the oil’s viscosity-temperature performance, especially its low-temperature properties. Specifically, the oil must feature an ultra-high viscosity index, ultra-low pour point, and low-temperature kinematic or dynamic viscosity, and we must also consider its shear stability under specific operating conditions. Our products engineered for ultra-low temperature oil offer superior performance in these aspects, and we can also apply this product series to applications requiring similar performance, such as aviation oil and high-performance shock absorber oil. We design the products in the following tables with differentiated performance priorities, including viscosity index improvement and shear stability, to satisfy diverse application needs.

MK-6733V PMA additive Typical Data
Item Typical Data Test Method
Appearance Transparent Viscous Liquid Visual Check
Kinematic Viscosity (100℃), mm²/s 1000-1300 GB/T 265
Colour, number 0.5 GB/T 6540
Density (20℃), kg/m³ 880 SH/T 0604
Flash Point (Open Cup), ℃ 160 GB/T 3536
Thickening Ability 6.91 SH/T 0622 Appendix A
 

 

PSSI

 

 Diesel Injector Shear, 30 Cycles, % 8.19  

SH/T 0103
Diesel Injector Shear, 90 Cycles, % 14.14
Diesel Injector Shear, 250 Cycles, % 17.45
KRL 20 h, % 63 NB/SH/T 0845
Note: According to Appendix A, the product is added to HVI150 base oil, and the increase in kinematic viscosity (100℃) of the blended oil with 10% PMA viscosity index improver is measured.
MK-6733VThickening, Viscosity Index and Pour Point in Different Base Oils
100N 250N
MK-6733V MK-6733V
wt% 0 5 10 0 5 10
Kinematic Viscosity (100℃), mm²/s 4.27 6.37 9.33 7.4 11.33 16.47
Kinematic Viscosity (40℃), mm²/s 18.59 26.51 37.95 50.23 71.19 98.32
VI 140 207 242 108 152 182
Pour Point, ℃ -40 -51 -46 -22 -40 -39
Recommended Formula of MK-6733V in Shock Absorber Oils
Formula  
60N Base Oil 95
MK-6733V 3.5
Functional Additives

MK-8010

 1.5
MK-PPD 0
Non-Silicon Defoamer 300ppm/Ton
Item   Test Method
Kinematic Viscosity (40℃), mm²/s 15.49 GB/T 265
Kinematic Viscosity (100℃), mm²/s 4.72 GB/T 265
VI 247 GB/T 1995
Pour Point, ℃ -50 GB/T 3535
Flash Point, ℃ 164 GB/T 3636
Brookfield Viscosity (-40℃), mPa·s 3298 GB/T 11145

 

Applications in Ultra-low Temperature Oil
Products PSSI (KRL 20h) Product Features Suggested Applications  

For use with low-viscosity Group II, III, IV and V and naphthenic base oils
MK-6731V 36 Excellent Shear Stability and Low-temperature Performance; Good Performance in Improving the Viscosity Index Oil used in extremely cold regions requiring excellent shear stability, viscosity index improvement and low-temperature performance
MK-6732V 48 Good Shear Stability; Excellent Low-temperature Performance and Viscosity Index Improvement Oil used in extremely cold regions requiring excellent viscosity index improvement and low-temperature performance and aviation hydraulic oil
MK-6733V 63 Outstanding Low-temperature Performance and Viscosity Index Improvement Shear-stable oil used in extremely cold regions requiring excellent viscosity index improvement and low-temperature performance, shock absorber oil or other special oil
Suggested Use

Add 1.0%~15.0%wt to the specified base oils. Given the different types of base oils, thickening, viscosity index and pour point tests of the blended oil are required to determine the exact amount ofMK-6733V functional polymer needed.

Polymethacrylate Viscosity Index Improvers Packaging

We package MK-6733V, a solution of modified polymethacrylate (PMA) in deeply refined mineral oil, in 200 L steel drums with a net weight of 175 kg or IBC tanks with a net weight of 900 kg.

Product Features:
  • Outstanding Low-temperature Performance
  • Viscosity Index Improvement

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