MK-6820V Polymethacrylate (PMA) Viscosity Index Improvers for Gear Oil
According to SAE J306, the 100℃ kinematic viscosity of gear oil should remain within the viscosity range after a 20-hour KRL shear test, for example, the 100℃ kinematic viscosity of grade 90 oil should be above 13.5 mm²/s after shear. At the same time, outstanding low-temperature fluidity is also needed to meet the low-temperature Brookfield viscosity requirements.
Gear oil Viscosity Index Inhibitor Typical Data
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Item
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Typical Data
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Test Method
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MK-6830V
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Appearance
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Transparent Viscous Liquid
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Visual Check
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Kinematic Viscosity (100℃), mm²/s
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800-1300
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GB/T265
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|
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Colour, number
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0.5
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GB/T6540
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Density (20℃), kg/m³
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890
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SH/T0604
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Flash Point (Open Cup), ℃
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160
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GB/T3536
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Thickening Ability
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4.09
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SH/T0622 Appendix A
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PSSI
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Diesel Injector Shear, 30 Cycles, %
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2.62
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SH/T0103
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Diesel Injector Shear, 90 Cycles, %
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3.82
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Diesel Injector Shear, 250 Cycles, %
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4.53
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KRL 20h, %
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40
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NB/SH/T0845
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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.
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Thickening, Viscosity Index and Pour Point in Different Base Oils
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150N
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250N
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MK-6830V
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MK-6830V
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wt%
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0
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5
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10
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0
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5
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10
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Kinematic Viscosity (100℃), mm²/s
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5.67
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7.47
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9.86
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7.4
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9.83
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12.99
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Kinematic Viscosity (40℃), mm²/s
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29.5
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38.75
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51.96
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50.23
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64.3
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86.54
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VI
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136
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163
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180
|
108
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137
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150
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Pour Point, ℃
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-20
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-39
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-35
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-22
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-38
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-35
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Applications in Gear Oil |
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Products
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PSSI (KRL 20h)
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Product Features
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Suggested Applications
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MK-6810V
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10
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Ultra-high Shear Stability and Excellent Low-temperature Performance
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High-performance oil meeting OEM specifications
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MK-6820V
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20
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High Shear Stability; Outstanding Low-temperature Brookfield Viscosity
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SAE 75W-90, 75W-85, 75W-80, etc.
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MK-6830V
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40
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Excellent Thickening Performance; Good Low-temperature Brookfield Viscosity; Designed for Low-viscosity Oil with Low Dosage Levels
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SAE 75W-80, etc.
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MK-6840V
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50
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Good Low-temperature Brookfield Viscosity; Designed for Low-viscosity Oil with Low Dosage Levels
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SAE 75W-80, etc.
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Gear oil Viscosity Index Inhibitor Suggested Use
Add 5.0%~35.0%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-6830V functional polymer needed.
Gear oil Viscosity Index Inhibitor Packaging
Can be packaged in 200 L steel drums with a net weight of 175 kg or IBC tanks with a net weight of 900 kg.
Product Features:
- Excellent Thickening Performance;
- Good Low-temperature Brookfield Viscosity;
- Designed for Low-viscosity Oil with Low Dosage Levels
