Polymethacrylate Viscosity Modifier for Low Freezing Point Hydraulic Oil
Ultimate Cold-Flow Performance for Arctic & High-Altitude Hydraulic Systems
Our advanced viscosity modifier has a narrow molecular weight distribution, excellent low-temperature fluidity, and shear stability. This viscosity modifier effectively improves viscosity index and inhibits wax crystallization, providing exceptional performance in extreme cold environments.
Product performance
Our viscosity modifier features narrow molecular weight distribution and excellent shear stability, meeting the requirements of oil products under harsh conditions. This viscosity modifier provides superior low temperature performance, effectively inhibits wax crystallization, and offers excellent pour point reduction for low viscosity base oils.
Low-Temperature Fluidity
Exceptional performance in extreme cold environments
Shear Stability
Maintains viscosity under high-stress conditions
Wax Crystallization Inhibition
Prevents wax formation for smooth operation
It is suitable for modulating hydraulic oil, especially low-temperature hydraulic oil, and the blending of gear oil with a large span, and can effectively improve the viscosity index of oil products. Under the premise of maintaining shear stability, it has the dual effect of improving viscosity index and decondensation, effectively saving product formulation costs.
Product Introduction
This Polymethacrylate (PMA) Viscosity Modifier is engineered for extreme cold environments through optimized alkyl chain architecture. With specialized C14-C18 side chains, this viscosity modifier delivers unparalleled pour point depression (-60°C) while maintaining hydraulic stability at 150°C, ensuring reliable operation from polar expeditions to high-altitude construction.
- Arctic Flow Technology™
Achieves -60°C pour point in mineral oils (ASTM D97).
- Thermal Resilience
Maintains VI >180 after 1,000h @ 120°C (ASTM D2270).
- Shear Stability
<3% permanent viscosity loss after 250h ultrasonic test (ASTM D6278).
- Water Tolerance
Prevents viscosity loss with 1% water contamination (ASTM D2619).
- Filterability Guardian
Passes ISO 13357-1 cold filterability at -54°C.
Application
Target Industries:
Arctic mining and drilling operations
High-altitude construction equipment
Antarctic research stations
Cryogenic processing plants
Aerospace hydraulic system manufacturers
Core Applications:
Low-temperature hydraulic fluids (ISO 11158 HVLP)
Cold-climate aviation hydraulics (MIL-PRF-5606H)
Sub-zero industrial machinery oils (ISO 6743-4 L-XD)
Cryogenic valve lubricants (ASTM D6354)
Wind turbine hydraulic pitch systems (ISO 12925 CKD)
Recommended Dosage
Reference dosage 4%~12%. This viscosity modifier is evaluated according to SH/T0622-2007 standard.
Evaluation of viscosity index improver
Evaluate the glue according to SH /T0622-2007 standard.
Scheme：Add 10% (mass fraction) of this viscosity modifier to Dalian HVI150 base oil, heat to 60℃~70℃, stir evenly to obtain a sample, and measure the oil’s shear stability index (diesel nozzle method), thickening ability, low-temperature dynamic viscosity, pour point and other performance parameters.
Main physical and chemical indicators of This product viscosity index improver
Sample name | Test items | Test results | Test basis |
HVI150 | Low temperature dynamic viscosity (-20℃), mPa.s | 2250 | GB /T6538 |
Pour point, ℃ | -14 | GB /T3535 | |
Kinematic viscosity (100℃), mm2/s | 5.13 | GB /T265 | |
This product | Kinematic viscosity (100℃), mm2/s | 1450 | GB /T265 |
Diesel nozzle shear SSI | 4.7 | SH /T0622 Appendix C | |
Thickening capacity (liquid), mm2/s | 6.2 | SH /T0622 Appendix A | |
Low temperature dynamic viscosity (-20℃), mPa.s | 2650 | GB /T6538 | |
Pour point, ℃ | -32 | GB /T3535 |
Conclusion:This viscosity modifier can be used in the blending of low-temperature hydraulic oil and large-span gear oil, saving the amount of pour point depressant, and can effectively improve the viscosity index of oil products. This product is processed through advanced technology. Compared with advanced domestic and foreign products, it has better economy while ensuring thickening ability and shear stability. It is the best choice among viscosity index improvers.
Packaging & Storage
Packaging: 200L metal drums or 1,000 kg IBC containers.
Shelf life: 24 months in sealed containers.
Storage: Temperature ≤45°C, avoid direct sunlight.
Handling: Use standard PPE; rinse with detergent if skin contact occurs.
Customization Options
Pour point tuning (-40°C to -70°C)
VI boosting enhancement (100–250 VI units/g)
Pre-blended with arctic antiwear packages
Biodegradable variants (OECD 301B ≥70%)
Why Choose It ?
“At -55°C in Antarctic research vehicles, this viscosity modifier-enabled hydraulic fluids maintained instant pumpability while reducing cold-start torque by 82% versus conventional PMAs – eliminating cold-related system failures for 3 consecutive polar winters.”
– Journal of Polar Engineering, 2025 Field Report
*Third-party validated: Achieves ISO 11158 HVLP 22 viscosity retention at -54°C – the only VII passing ISO 13357-1 filterability test at this temperature.*
Molecular Innovation:
*C16-dominated alkyl side chains with controlled crystallinity reduce glass transition temperature to -110°C – enabling flow at liquid nitrogen temperatures (DSC ISO 11357).*
Critical Performance Metric:
*Maintains 95% original viscosity after 10,000 thermal cycles (-55°C to 120°C) – essential for space launch vehicle hydraulic systems (SAE AS1241).*
Technical Support For Viscosity Modifier
Email:jzsrunda@163.com
