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Low-temperature Hydraulic Oil PMA Viscosity Modifier

PMA viscosity modifier SCR-178A is a kind of the efficient viscosity index improver, and it also has pour point depressing effect.

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Low-temperature hydraulic oil PMA Viscosity modifier
PMA viscosity modifier SCR-178A is a kind of the efficient viscosity index improver, and it also has pour point depressing effect. With a little dosage, this product can availably improve the viscosity index, and can also reduce the pour point at the same time, thus saves the cost of additives. The product is transparently sticky liquid. And the dosage has no effect on the transparence of the oils. It is popularly used to blend low-temperature hydraulic oil. It can be used for formulating many kinds of oils such as aviation hydraulic oils, fluid drive oils, gear oils, transformer oils, hydraulic oils of low pour point, NC machine hydraulic oils, special hydraulic oils and internal-combustion engine oils and so on.


Product Characteristics
SCR-178A has a narrow molecular weight distribution and a stable structure. It offers high shear stability and excellent low temperature fluidity, efficient in improving viscosity index and inhibiting wax crystallization. This formula also offers excellent depressant effect for hydrogenarated base oil. Excellent filterability and demulsibility.


Recommended Dose
1%-10%


Typical Characteristics

List of Items

Standard Value

Typical Value

Test Method

Color

<2

<0.5

GB/T6540

Density, Kg/m3

-

931

GB/T1885

Flash point (COC), °C

>120

>150

GB/T3536

Thickening ability, mm2/s

4.0

6.5

SH/T0566

Kinematic Viscosity,
mm2/s

550

1220

GB/T265


List of Items

Base Oil HVI 150

HVI 150 + 10% SCR-178A

Test Method

Appearance

Clear transparent viscous liquid

Visual

Low temperature dynamic viscosity, (-20°C), mPa.s

2250

2650

GB/T6538

Shear stability index(SSI)

-

4.7

SH/T0622-C

Pour Point, °C

-14

-32

GB/T3535

Thickening ability, mm2/s

-

6.2

SH/T0622-A


Packaging and Safety Information
Net weight: 175 Kg/drum, packed in 200 liter metal drum. Best Blending temperature: 50-60℃. Please refer to SH/T0164 for transportation, storage and handling. Non-flammable, non-explosive, non-corrosive. Storage temperature below 60℃, avoid repeated heating, keep away from heat.


SCR-178A PMA Viscosity Index Improver
Application Examples

1. Blending Low-Temperature Hydraulic Oil 46#

Base Oil

Hydraulic Oil Additive Package

Viscosity Index Improver

Pour Point Depressant

65% ETRO4 + 35% GS500N-4

Afton HiTEC 521

SCR-178A

SCR-248

100%

0.85%

7%

0.2%


Items

Low-Temperature Hydraulic Oil 46#

Test methods

Kinematic Viscosity,
mm2/s

40 °C

49.03

GB/T265

100 °C

9.645

Viscosity Index

186

GB/T2541

Pour Point, °C

-42

GB/T3535

Air Release Rate (50 °C), min

3.0

SH/T0308

Demulsibility (40-37-3) 54°C, min

5

GB/T7305

shear stability index (250 cycles, 40°C), %

0.72

SH/T0103


2. Blending Motor Gear Oil GL-5 75W/90

Oil Composition

Items

Characteristics

Test methods

81.6% 150N
+
4.4% Afton HiTEC 3339
+
SCR-178A

Kinematic Viscosity (100 °C), mm2/s

16.16

GB/T265

Surface Viscosity (-40 °C), mm2/s

69600

GB/T11145

Pour Point, °C

-42

GB/T3535

Viscosity index

194

GB/T1995


3. Viscosity Index Indicators

HVI 150

SCR-178A

Kinematic Viscosity, mm2/s

Viscosity Index

100 °C

40 °C

100%

0%

5.13

30.11

97

99%

1%

5.66

32.78

112

98%

2%

6.15

35.53

121

97%

3%

6.78

38.29

135

94%

6%

8.76

47.48

166

90%

10%

10.83

56.82

186


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Shenyang, Liaoning, China
Email: charles@greatwall-oil-additive.com
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